Faculty of Sciences, Engineering & Health
SCIE40020
Foundation Science (WIST)
What is this course about?
This course will enable students with no recent formal education in science to gain the
necessary understanding of the basic principles of the major branches of science that
will serve as a foundation for entry into relevant programs, such as nursing/health, and
related areas. Students will develop study skills in selecting and evaluating scientific
information. They will also enhance their knowledge and understanding of the
fundamentals of biology, chemistry, physics and related mathematical concepts, and
their applications in real-world contexts.
What are the expected
outcomes of the course?
On successful completion of this course, the student should be able to:
(1) Apply a range of study skills to the selection and evaluation of scientific information
(2) Demonstrate understanding of fundamental principles of biology, chemistry and
physics and their application in real-world contexts
(3) Demonstrate understanding of basic mathematical concepts as applied to scientific
calculations and data.
When is it offered?
2011 Term Three
Where is it offered?
Flexible Learning
How is it assessed?
Approved assessment for this course is:
Examination 0%
Other
100%
Assessment 1 20% Written Assessment
Assessment 2 30% Written assessment
Assessment 3 30% Written assessment
Assessment 4 20% Written assessment
What textbooks do I need
to obtain?
Who do I contact?
ALL
ALL
ALL
ALL
There are no set textbooks for this course.
Coordinator:
Email:
Phone:
Leanne Voss
[email protected]
49232876
Additional contact details may be found at:
http://lecturer.cqu.edu.au/lecturer.jsp?term=2113&course=SCIE40020
Copyright CQUniversity
Course Profile for: SCIE40020, 2011 Term Three - Page 1
Information for Students for this Offering
Study Schedule
Week
Begin Date
Module/Topic
Chapter
Week 1
Time planning for effective learning: Learning
strategies: Academic and professional writing
techniques;Information retrieval; Finding help at
CQUniversity; Exam preparation
Unit 1:
Developing
study skills the way to
success
Week 2
The number line; Ways to express numbers;
Evaluating measurements and results
Unit 2:
Understanding
numbers - tools
of science
Week 3
Units and conversions; Graphing; Simple algebraic
equations
Unit 2:
Complete Assessment
Understanding item 1
numbers - tools
of science
Week 4
What is matter; Building blocks of matter; Bonding
Unit 3:
Understanding
matter - atoms
and molecules
Week 5
Chemical reactions; Measuring atoms and
molecules;Solutions
Unit 3:
Understanding
matter - atoms
and molecules
Week 6
Electrolytes; Acids and bases; Organic compounds
Unit 3:
Understanding
matter - atoms
and molecules
Week 7
The living organism; Levels of organisation in living Unit 4:
systems;Homeostasis; A closer look at the human
Understanding
body
living things cells the basis
of life
Week 8
Cell theory; Cell structure and function
Unit 4:
Understanding
living things cells the basis
of life
Course Profile for: SCIE40020, 2011 Term Three - Page 2
Events and
submissions
Complete Assessment
item 2
Week 9
Cell structure and function; Types of cells;
Unit 4:
Understanding
living things cells the basis
of life
Week 10
Microbes; Genetics and Heredity
Unit 4:
Understanding
living things cells the basis
of life
Week 11
Density; Force; Mass and weight; Pressure; Work
Unit 5:
Working with
matter - energy
and change
Week 12
Density; Force; Mass and weight; Pressure; Work
Unit 5:
Complete Assessment
Working with item 4
matter - energy
and change
Course Profile for: SCIE40020, 2011 Term Three - Page 3
Complete Assessment
item 3
Assessment Submission
Students are required to familiarise themselves with the policies and procedures of the University & Faculty, such as:
Referencing Style
● http://facultysite.cqu.edu.au/FCWViewer/view.do?page=3949
Copyright Guidelines
http://content.cqu.edu.au/FCWViewer/view.do?site=302
Assessment of Coursework Policy
●
● http://policy.cqu.edu.au/Policy/policy.jsp?policyid=701
Student Misconduct and Plagiarism Policy
http://policy.cqu.edu.au/Policy/policy_file.do?policyid=1245
Student User Guide
●
● http://www.cqu.edu.au/studentguides
Please refer to the Faculty Guide for Students for general assessment information pertaining to Faculty courses.
Faculty Guide
Students are required to familiarise themselves with the various requirements outlined in the annual Faculty Guide.
http://fseh.cqu.edu.au/FCWViewer/view.do?page=9529
Course Profile for: SCIE40020, 2011 Term Three - Page 4
Moodle Site for Foundation Science
To participate in this course it is necessary to access the university online learning management
system, “Moodle”. Access can be made via the CQU homepage or through the following link:
http://moodle.cqu.edu.au/ . (You will need to log on with your student number and password.)
Note that the study material for Foundation Science is accessed by students in a range of bridging
programs and as such it is necessary for you to access specific details such as course profile and
assessment items through the Moodle site for SCIE40020 Term 3, 2011
The shared course material is accessed by selecting the link ‘FOUNDATION SCIENCE’. This
takes you into another Moodle page which has discussion forums, instructions for submitting your
assessment items and more importantly a block for each of the units of study.
Each block contains:
• An electronic copy of 1 unit of the study guide.
The study material also contains
 a number of activities - it is suggested that you print the activities and try them as you
work through each unit of study.
Some mini-practicals - which may provide some hands on experience to help reinforce some concepts –
and perhaps a little enjoyment also!
•
On-line tutorial quizzes that you may find helpful to clarify some of the course material.
These quizzes are not assessed but provided as a tutorial to assist you in understanding some
of the topics studied. Please access these regularly and try as many quizzes as possible.
•
A forum where you are free to share with other students how you find the topics studied
relevant to your work or everyday environment.
Student email
The university allocates every student an individual email address, the format of which is as
follows: [email protected]
This is the official email address that the university will use for all email correspondence. Student
emails can be accessed through the student portal. (go to the university homepage, click link
My.CQU. log on and follow options to view email). Students are expected to check their official
email address on a frequent and consistent basis (at least once weekly).
Course Profile for: SCIE40020, 2011 Term Three - Page 5
Study Schedule
WIST students may commence this course of study at any time throughout the year. Although the
course has been designed to be completed in standard university term of 12 weeks, it is not essential
to do so. Students are encouraged to follow their own self directed study plan and to submit
assessment items on completion of the relevant unit of study.
Assessment details for all students
In order to pass this course, students must submit all four (4) written assessment items and gain at
least 50% for each item. Grades will be awarded according the CQUniversity Assessment of
Coursework Policy. This policy can be viewed by following the link:
http://policy.cqu.edu.au/Policy/policy_file.do?policyid=701
and then selecting the “Grades and Results Policy”.
Assignment submission
All assignments need to have a completed and signed cover sheet attached which can be obtained
electronically through the Student Contact Centre, CQU Central. Details are also available on the
MOODLE site for this course.
Students should keep a copy of all submitted assignments.
Assignments are to be submitted in print through the Student Contact Centre, CQU Central.
Course Profile for: SCIE40020, 2011 Term Three - Page 6
SCIE 40020 Assessment item 1
Due date:
(on completion of Unit 2)
This assessment item relates to Unit 2: Understanding numbers – tools
of science
(40 marks – 20% of course assessment)
Student Name………………………………
Student Number ……………………………
Please answer all questions in the spaces provided.
1. Mark the following numbers with an ‘X’, on the number-line provided:
a) 1.7
b) -3.1
c) 0.2
Read the three numbers marked with a cross on the following number line:
……………
……………
……………
Course Profile for: SCIE40020, 2011 Term Three - Page 7
(3 marks)
2. Convert the numbers in the following table into either improper fractions or mixed numbers as
appropriate.
(3 marks)
Improper fraction
Mixed number
11
2
2
2
3
4
2
5
12
3
7
45
8
65
6
3. Complete the following table by converting the number given as required. All fractions should
be written in lowest terms.
(4 marks)
Fraction
Decimal
Percentage
4
5
0.15
36%
3
4
Course Profile for: SCIE40020, 2011 Term Three - Page 8
4. In each of the following sets, circle the number that has the lowest value.
26% ;
26
; 0.026
50
75% ; 7
30% ;
(3 marks)
5
; 7.5
100
3
; 0.35
5
5. Complete the following.
(3 marks)
a) Rewrite 370.32 using two significant figures. ………………………………………
b) Rewrite 4732.208 using five significant figures.
…………………………………………
c) Rewrite 0.01234 using three significant figures. ……………………………………………
d) How many significant figures are there in the number ‘147.300’ ?
e) How many significant figures are there in the number ‘0.00210’ ?
f)
How many significant figures are there in the number ‘570.000’ ?
………………
………………
………………
6. In performing multiplication and division it is important to consider the number of significant
figures in the input data when reporting the result. Use a calculator to perform the following
calculations but consider carefully how to report the answer.
(3 marks)
a) 3.4 X 29.56 =… … … … … …… … …
b) 200.00 ÷ 6.333 =… … … … … …… … …
c) 0.00500 x 88.567 =… … … … … …… … …
Course Profile for: SCIE40020, 2011 Term Three - Page 9
7. In performing addition and subtraction it is important to consider the number of decimal
places used in the input data when reporting the result. Use a calculator to perform the
following calculations but consider carefully how to report the answer.
(3 marks)
a) 2.791 + 12.125 =… … … … … …… …
b) 1520.0 + 0.04 =… … … … … …… … …
c) 66.66 – 3.2 =… … … … … …… … …
8. Complete the following table.
Number
(3 marks)
Written in scientific notation
0.00523
7.90 x 10 -4
502.040
6.00100 x 10 3
705 200
9.3 x 10 6
Course Profile for: SCIE40020, 2011 Term Three - Page 10
9. A particular chemical is not considered to be health risk if it is consumed at a rate less than
250 mg per 50 kg of body mass. Determine the maximum amount of this chemical that a
person with a mass of 66 kg could safely consume within these guidelines. Show all working.
(3 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
10. A particular medicine contains 2.5 micrograms of active ingredient per 10 mL. If a patient is
to be given 12.0 micrograms of the active ingredient, determine the dosage volume required.
(3 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
11. Complete the following table of conversions between units.
127 g is equivalent to
0.00750 L is equivalent to
86.54 cm is equivalent to
kg
µg
mL
µL
m
mm
Course Profile for: SCIE40020, 2011 Term Three - Page 11
(3 marks)
12. Explain the meaning of the terms ‘precise’ and ‘accurate’. (2 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
13. Which one of the following statements is correct?
(2 marks)
a) Precise measurements will always be made when there are random errors in the system.
b) Precise measurements can be made when there is a systematic error in the system.
c) Accurate results can always be obtained when there are systematic errors in the system.
d) All precise measurements are accurate.
e) There is no difference in the meaning of ‘accurate’ and ‘precise’.
14. A patient tries to obtain a large dose of vitamin C over the course of a day to help with his
cold. Determine the total amount of vitamin C consumed if the patient consumes all of the
following:
•
6 tablets, each containing 150 mg Vitamin C,
•
5 tablets, each containing 250 mg Vitamin C, and
•
2 tablets, each containing 1000 mg Vitamin C.
(2 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 12
SCIE 40020 Assessment item 2
Due date: (On completion of Unit 3)
This assessment item relates to Unit 3: Understanding matter – atoms
and molecules
(60 marks – 30% of course assessment)
Student Name………………………………
Student Number ……………………………
Please answer all questions in the spaces provided.
1. Using your knowledge of particles, explain why the ‘crying eye effect’ when cutting an onion
is less noticeable when the onion has been cooled.
(3 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
2. How would you describe the difference between a chemical change and a physical change?
In your answer provide an example of each. (3 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 13
3. Classify each of the following as being a heterogeneous mixture, a homogeneous mixture, or
a pure substance.
(3 marks)
a) Cottage cheese
...............
b) A solution of sugar dissolved in water
...............
c) Cooking oil
...............
d) Champagne
...............
e) A solution of oil and water
f)
...............
Diamond
...............
4. Refer to a Periodic Table to answer the following questions. (6 marks)
a) How many protons are there in the element aluminium (Al)?
...............
b) How many electrons are present in an atom of sulfur(S)?
...............
c) What is the mass number of Boron (B)?
...............
d) How many neutrons are there in an atom of Berylium (Be)?
...............
e) Which element has an atomic number of 12?
...............
f)
...............
Which element does not have any neutrons?
Course Profile for: SCIE40020, 2011 Term Three - Page 14
5. Use the periodic table provided in the study guide to complete the following table.
Determining the total number of electrons and valence electrons for each element will help
you to predict whether the element will gain or lose electrons to gain noble gas configuration.
Remember, metals generally lose valence electrons and become positively charged ions.
(8 marks)
Element
Total
number of
electrons?
No. of
valence
electrons?
Circle whether the
element gains or loses
electrons and indicate
the number of
electrons involved.
Fluorine
gains /loses ……..
electrons
Magnesium
gains /loses ……..
electrons
6. Isotopes are atoms of the same element that contain
Element
becomes
an anion or
cation?
Overall
charge on
the anion or
cation?
(1 mark)
a) the same number of neutrons but different numbers of electrons.
b) the same number of electrons but different numbers of protons.
c) the same number of protons but different numbers of neutrons.
d) the same number of neutrons but different numbers of protons.
e) different numbers of electrical charges.
7. Which one of the following statements about chemical bonding is not correct?
(1 mark)
a) Ionic bonding occurs when one atom donates electrons to another.
b) When atoms bond, the resulting compound is of a higher energy state than that of the
combining atoms.
c) A covalent bond forms when two electrons are shared between two atoms.
d) Aromatic bonding occurs in benzene.
e) Hydrogen bonding between molecules is weaker than covalent bonding.
Course Profile for: SCIE40020, 2011 Term Three - Page 15
8. Identify the following structures as being either cyclic hydrocarbon or aromatic.
(2 marks)
H
H
H
H
H
H
H
H
C
H
H
H
H
C
this structure is …………………………………………
H
C
C H
C H
C
H
H
H
this structure is ……………………………………
9. Complete the following table.
Molecule
(4 marks)
Molecular formula
Vitamin B12
C63H89CoN14O14P
Phosphoric acid
H3PO4
Paracetamol
C8H9NO2
Ammonium
sulphite
(NH4)2SO3
Ratio of combining atoms
Course Profile for: SCIE40020, 2011 Term Three - Page 16
10. Consider the following diagram for a reaction pathway without a catalyst. (6 marks)
a) What is meant by the term ‘activation energy’?
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
b) Mark in the activation energy for this reaction.
c) Draw in a line that would represent the path followed if a catalyst were used and indicate
the activation energy for this reaction.
d) If a catalyst is used, will it be consumed in the reaction? … … …… … … …
e) Briefly describe the role of a catalyst in a chemical reaction.
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
f)
What is the general name given to a biological catalyst? … … …… … … …
11. Choose the one answer that is not correct.
(1 mark)
a) In an exothermic reaction energy is released to the surroundings.
b) The products of an endothermic reaction are at a higher energy than reactants.
c) The reactants in an exothermic reaction are at a higher energy than the products.
d) A catalyst has no influence in determining whether a reaction is endothermic or
exothermic.
e) Energy is only sometimes involved in the breaking and forming of chemical bonds.
Course Profile for: SCIE40020, 2011 Term Three - Page 17
12. A saturated solution is a solution which at a certain temperature
(1 mark)
a) contains the maximum volume of solvent.
b) contains the maximum amount of dissolved solute.
c) contains compounds with many bonds.
d) is very dilute.
e) contains only solute (no solvent).
13. Briefly describe the difference between concentration terms of 10% w/v and 10% v/v.
(2 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
14. If a saline solution has a concentration of 1.5 % w/v, calculate the following.
(2 marks)
a) The concentration of this solution in grams per litre (g/L).
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
b) The concentration of this solution in milligrams per litre (mg/L).
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
15. A patient requires a particular medication at a concentration of 0.20% v/v. The stock solution
of medication is supplied with a concentration of 0.80 % v/v.
(4 marks )
a)
What is the dilution factor required? … … … … … … … … … … … … …
b)
Use this dilution factor to calculate the volume of stock solution needed if 200mL of the
diluted medication is to be prepared for the patient.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 18
16. Complete the following statement by filling in the blanks. (2 marks)
An acid + a base produces …………………………. + ……………………………… .
17. The pH scale of acidity is used to describe acids and bases. Complete the following table by
matching each of the three given pH values with the solution that it would describe.
(3 marks)
pH value
Matches
Solution description
with
5.9
a) Neutral solution
13.6
b) Slightly basic solution
0.1
c) Slightly acidic solution
3.5
d) Very basic solution
7.0
e) Very acidic solution
8.3
f)
Moderately acidic solution
18. Answer the following questions regarding buffers. Remember that a buffer contains a weak
acid and its conjugate base. (5 marks)
a) What is the function of a buffer?
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
b) Name the buffer present in human blood that is essential in maintaining a pH between
7.35 and 7.45.
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
c) Briefly describe how each component of this buffer helps in maintaining blood pH within
the range of 7.35 and 7.45.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 19
19. Which one of the following elements is always a component of organic molecules?
(1 mark)
a) Hydrogen
b) Oxygen
c) Carbon
d) Nitrogen
20. Which one of the following statements is false?
(1 mark)
a) Carbohydrates contain hydrogen, carbon and oxygen.
b) Disaccharides contain two amino acid units.
c) Lipids are not water soluble.
d) Starch is a complex carbohydrate molecule.
21. Which one of the following statements is false?
(1 mark)
a) Proteins are made up of many amino acids.
b) An enzyme is a special type of protein.
c) Peptide bonds are found in proteins.
d) An amine group contains a nitrogen atom.
e) Steroids are a special type of protein.
Course Profile for: SCIE40020, 2011 Term Three - Page 20
SCIE 40020 Assessment item 3
Due date: (On completion of Unit 4)
This assessment item relates to Unit 4: Understanding cells –the basis
of life
(60 marks – 30% of course assessment)
Student Name………………………………
Student Number ……………………………
Please answer all questions in the spaces provided.
1. Identify the each of the following as being living, nonliving, or dead. (2 marks)
a)
b)
c)
d)
Moss on a rock in the rainforest
A stone on the ground
A bone given to a dog
A volcano
2. Which of the following statements provides the best definition of a biological tissue?
(1 mark)
a)
b)
c)
d)
e)
A group of cells with the same life span
Part of an organ
A group of cells with a common function
A special type of cell
A group of cells that are found in close proximity to each other
Course Profile for: SCIE40020, 2011 Term Three - Page 21
3. List the five basic tissue types and describe briefly the main function of each. (5 marks)
Tissue type
Main function
4. Identify the body system to which each of the following organs belongs.
Organ
(3 marks)
Body system
Tendons
Small intestine
Hair
Bladder
Brain
Lymph glands
5. Identify two mechanisms of homeostasis that occur in the body in order to regulate body
temperature in an extremely cold environment. Explain how each is effective.
(4 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 22
6. Which one of the following statements is incorrect? (1 mark)
a) The cell is the fundamental structural unit of a living organism.
b) Not all cells arise from pre-existing cells by division.
c) Most cells contain hereditary information that can be passed on to future generations.
d) The energy for all processes in our bodies is produced in cells.
e) All cells contain information that determines the cell’s function.
7. Match the cell component with its function.
Cell component
Matches
with:
(5 marks)
Major function
a) cytoplasm
f)
contains genetic information
b) nucleus
g) divides the cytoplasm into spaces
c) endoplasmic reticulum
h) breaks down molecules to produce
energy
d) mitochondrion
i)
separates cytoplasm from outer
environment
e) cell membrane
j)
the cell material outside the nucleus
8. ATP, ADP and AMP are molecules that are found in cells.
(6 marks)
a) What cell structure is responsible for energy conversion in the cell?
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
b) Where is the energy stored in molecules of ATP and ADP?
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
c) Is the conversion of ATP to ADP endothermic or exothermic? Explain.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
d) Does ADP store more energy that ATP? Explain.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 23
9. Complete the following.
(7 marks)
a) What is meant by the term ‘hydrophobic’?
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
b) What is meant by the term ‘hydrophilic’ ?
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
c) Describe the structure of a phospholipid.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
d) Draw a representation of the phospholipid bilayer.
e) Explain how the phospholipid bilayer is effective as the cell membrane.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 24
10. Osmosis is described best by which one of the following statements?
(1 mark)
a) A form of facilitated diffusion.
b) Movement of solvent molecules so as to equalise the solute concentration on either
side of a membrane.
c) Movement of solute molecules from regions of high solute concentration to low solute
concentration.
d) A form of active transport across a cell membrane.
11. Which one of the following statements is NOT correct?
(1 mark)
a) Passive transport does not require an energy input to occur.
b) Diffusion occurs when solute molecules move from a region of low solute
concentration to one of a high solute concentration.
c) Active transport occurs with movement of particles from region of low concentration to
high concentration.
d) Diffusion and osmosis are forms of passive transport.
12. Explain the difference between a hypertonic solution and a hypotonic solution.
(2 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 25
13. Using your knowledge of osmosis, hypertonic and hypotonic solutions, circle the correct
option in each of the following statements. (4 marks)
a) A hypertonic solution is likely to contain … many / no electrolytes.
b) If a blood cell is placed in a hypotonic solution it is likely to …. shrivel up / swell.
c) If a blood cell is placed in a hypertonic solution it is likely to … shrivel up / swell.
d) If a blood cell is placed in distilled water, the water could be described as a ….
hypotonic / hypertonic solution.
14. Answer each of the following questions.
(3 marks)
a) What do the letters in the acronym ‘DNA’ stand for?
… … … … … … … … … … … … … … …… … … … … … … … … … … …
b) Where is DNA found?
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
c) Which components make up DNA?
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
15. Circle the correct base pairing.
(1 mark)
a) Adenine –Guanine
b) Adenine – Cytosine
c) Thymine – Guanine
d) Thymine – Adenine
e) Cytosine – Thymine
Course Profile for: SCIE40020, 2011 Term Three - Page 26
16. Complete the following questions regarding cell specialisation. (3 marks)
a) Detail the structural specialisation that has occurred in the cells in the intestine?
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
b) Describe how this specialisation contributes to the function of these cells.
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
17. Provide a brief statement to describe what is meant by the following terms. (4 marks)
a) Mitosis … … … … … … … … … … … … … … …… … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
b) Meiosis … … … … … … … … … … … … … … …… … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
c) Haploid … … … … … … … … … … … … … … …… … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
d) Diploid … … … … … … … … … … … … … … …… … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 27
18.
Complete the following regarding genetics and heredity.
(7 marks)
a) Define the term ‘genotype’. … … … … … … … … … … … … … … … …
b) Define the term ‘phenotype’. … … … … … … … … … … … … … … … …
c) The ability to roll one’s tongue is a genetic trait due to a dominant allele “R”.
Construct a Punnett square to predict the genotypes and phenotypes that result when
a man who can roll his tongue (RR) and a woman who cannot roll her tongue (rr) have
a child.
Use the Punnett square that you have constructed to answer the following
d) List the different genotypes that are present? … … … … … … … …
e) Describe the different phenotypes that are present? … … … … … … … …
f) What is the likelihood of the offspring being heterozygous? … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 28
SCIE 40020 Assessment item 4
Due date: (On completion of Unit 5)
This assessment item relates to Unit 5: Working with matter – energy
and change
(40 marks – 20% of course assessment)
Student Name………………………………
Student Number ……………………………
Please answer all questions in the spaces provided.
1. Define what is meant by the term ‘density’.
(1 mark)
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
2. Four (4) cubic centimetres of lead has a mass of 44.6 g, while three (3) cubic centimetres of
aluminium has a mass of 8.2 g.
(3 marks)
a) Calculate the density of each metal.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
b) Which has the greater density, lead or aluminium? Explain.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 29
3. Circle the correct option in the following statements. (2 marks)
a) Your mass would be greater / equal / less on the moon than on the earth.
b) Your weight would be greater / equal / less on the moon than on the earth.
4.
In the following table, match the type of force listed with a relevant description. (5 marks)
Type of force
Matches
with
Description - cause of force
a)
compression
f)
rubbing your hand on carpet
b)
gravity
g) a piece of paper falling to the ground
c)
friction
h) a picture hanging on a wall
d) tension
i)
a tight bandage around a swollen ankle
e) shear
j)
two people pulling on either end of a rope
5. Using the concepts of pressure and area, explain why more pressure is required to push a
blunt pin rather than a sharp pin into a board? (2 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 30
6. In the following table match the ‘term used to describe lever action’ with the relevant human
body part used when a nurse lifts a patient. (4 marks)
Term used to describe
lever action
Matches
with
Human body part used to lift patient
a) fulcrum
e) the bones in the forearm
b) effort force
f)
c) load force
g) elbow joint
d) lever
h) work by muscles
patient
7. Explain, in your own words, what is meant by the following terms and label them on the
following diagram. (2 marks)
a) Wavelength
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
b) Amplitude
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
8. If the diagram in Question 7 represents the movement of a wave in one hundredth (1/100) of
a second, what is the frequency of the wave? (2 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 31
9. Which one of the following statements is correct? (1 mark)
a) Sound waves travel faster in liquids than in solids.
b) Sound waves travel faster in air than in liquids.
c) Sound waves travel faster in warm moist air than in cool dry air.
d) Sound waves can travel in a vacuum.
10. Which one of the following statements is correct? (1 mark)
a) Radio waves have more energy than microwaves.
b) Ultraviolet light has less energy than infrared light.
c) Light with high energy has long wavelengths.
d) Ultraviolet light is visible.
e) X-rays are high frequency, high energy waves.
11. Which one of the following statements about light and sound waves is correct?
(1 mark)
a) Sound waves cannot travel in a vacuum.
b) A light wave is sometimes referred to as a pressure wave.
c) Sound travels via transverse waves.
d) Light waves cause air molecules to vibrate along the wave path.
e) High energy waves have low frequency and large wavelengths.
12. Complete the following regarding the application of sound waves in medical science.
(4 marks)
a) What type of medical imaging uses sound waves?
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
b) Explain how this form of imaging works.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 32
13. Please complete the following questions about nuclear radiation.
(6 marks)
a) Provide details on the four factors that should be considered in minimizing risk due to
nuclear radiation.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
b) Alpha and beta particles are forms of nuclear radiation. Discuss these particles in
terms of mass, distance travelled and suitable protection.
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
…
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
…
c)
Which type of nuclear radiation is the most difficult to shield effectively?
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
…
14. Explain what is meant by the term ‘half-life of a radioactive substance’.
(2 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
…
… … … … … … … … … … … … … … …… … … … … … … … … … … … … …
…
15. A radioactive isotope has a half life of 2 weeks. If the original strength of the radiation is 1000
counts per second, how many weeks must elapse until the strength of the radiation is less
than 1 count per second?
(4 marks)
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 33
… … … … … … … … … … … … … … …… … … … … … … … … … … … …
Course Profile for: SCIE40020, 2011 Term Three - Page 34