Name____________________________________
KEY_Review for Unit 3 Test: Microscope, Cell Theory, and Cells
Part 1: Microscope
Identify the parts of the microscope and their functions.
6.
7.
1.
8.
2.
3.
9.
4.
5.
10
.
1. ____Nosepiece____
__________turn to select the objective needed____________
2. ____Objectives___
_________magnify specimen 4, 10, or 40
X
__________
3. ____Stage_________
___________Place slide on and clamp down________________
4. ____Diaphragm_____
__________adjust the amount of light hitting specimen____
5. _____Light source___
_________provides light to view the specimen__________
6. _____Eyepiece______
7. _Coarse adjustment
8. _Fine adjustment___
look through to find what you want to view-magnifies 10
X_
moves stage up and down—use on scanning power only
used to sharpen the focus on a specimen on low and high power
9. __arm________
__used to carry the microscope________
10. ___base_______
__used to carry the microscope_______________
Microscope use:
1.
When you first go over to the microscope, turn the nosepiece to the _scanning _
objective which is _4
_ X.
2.
Make sure the stage is _up____.
3.
Focusing: the first part of the microscope you use to focus the specimen is the
_coarse__ adjustment.
4.
To make the object clearer, use the _fine___adjustment.
To calculate the total magnification, multiply the __eyepiece____times the _objective__.
Try these: the objective is on low power: total magnification is __10_
X _10___=__100___X
the objective is on high power: total magnification is __10__
X __40____=__400___X
Part 2: Levels of Organization
List them in order and give an example of each level.
Cells _tissue__  ___organ_  ___organ system____  ____organism___
Skin cellepithelial tissueskinintegumentary system person
Part 3: Cell organelles
Label the animal and plant cells.
4
.
5
.
8
.
9
.
6
.
7
.
1
.
2
.
3
.
10
.
12
.
11
.
Organelle name
1.Endoplasmic
reticulum
Function
Transporting
materials in the cell
Organelle name
2. nucleus
3.ribosomes
Make protein
4.cytoplasm
5.mitochondria
Use food to make
energy
5.lysosome
7.Golgi body
Packaging and
transport outside the
cell
Supports and
protects the plant
cell
8.Chloroplast
Holds water in plant
cells—plant wilts if
this is empty 
12.vacuole
9.Cell Wall
11.Large central
vacuole
10.cell
membrane
Function
Controls all cell
functions; dna found
there
Jelly like material inside
cell that cushions
organelles
Digest old cell parts
and other materials the
cell doesn’t need
Found in plant cells;
used to make food
through photosynthesis
Controls what goes in
and out of cells;
protects the cell; in
both kinds
Holds water and other
materials…found in
both kinds of cells
Which organelles are only found in Plant Cells?
There are 3: Chloroplasts, cell wall, and large central vacuole
What is chlorophyll, what type of cells is it found in, and what does it help the cell do?
Chlorophyll is a chemical compound that is green in color
It is found in plant cells only
It helps the cell make food using energy from sunlight, water, and carbon
dioxide (photosynthesis)
Can you find chlorophyll on the periodic table? Why or why not? NO, chlorophyll is a
compound and only ELEMENTS are on the periodic table of elements
Part 4: Cell theory
What are the 3 parts of cell theory?
1. Cells come from pre-existing cells
2. All living things are made from one or more cells
3. Cells are the basic unit of life and have functions that help the organism
survive
What are some key points (terms, vocabulary) that are associated with cell theory?
Think about SPONCH.
Carbon, organic molecules, living matter, organic matter
Miscellaneous:
IVCDV practice
Sam and Molly want to find out how high to build a ramp so that they can make the
highest jump on their skateboards. They test 3 different angles: 25, 30, and 35 degrees.
They had Sam do all the testing with his skateboard and he started from the same spot
each time. The distance he landed from the ramp was measured in meters.
What is the independent variable? Angle of ramp: 25, 30, 35 degrees
What is the dependent variable? Distance of jump in meters
What are some constants? Same person, skateboard, starting point
Graphing skills: This graph shows the number of math facts Jane learned over 4 days.
What is the independent variable? day
What is the dependent variable? # of facts
# of facts
What time frame did she learn the most facts?
From day 2 to day 3 (steepest rise)