Type of compound
Carbohydrate
Elements
Functions
Lipid
Protein
1. Starch is an example of a
a. Lipid
b. Nucleic acid
c. Protein
d. Carbohydrate
2. Which type of organic molecule is found primarily in a cell’s nucleus? ___________________________________
3. What is the difference between an element and a compound? ________________________________________
___________________________________________________________________________________________
4. How may a lack of protein in a person’s diet affect the body? _________________________________________
___________________________________________________________________________________________
5. An organic compound that contains only the elements carbon, hydrogen, and oxygen is most likely (a
carbohydrate/a protein/DNA). Explain your answer. __________________________________________
___________________________________________________________________________________________
6. Which groups of organic compounds found in living things are NOT energy rich? __________________________
7. What is the function of DNA? ___________________________________________________________________
___________________________________________________________________________________________
8. Describe one way a lack of water could affect cell functions. __________________________________________
___________________________________________________________________________________________
9. Now I know that the important compounds in living things include _____________, ___________,
_________________ and _________________
10. Now I know that ______________________ form when _______________ combine.
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Word
Selectively Permeable
Definition
Passive Transport
Diffusion
Osmosis
Active Transport
Endocytosis
Exocytosis
11. Fill in the words missing in the boxes.
12. On the diagram, write an “H’ where the concentration (amount) of each substance is high and an “L” where the
concentration is low.
13. The process by which water moves across a cell’s membrane is called
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a. Osmosis
b. Exocytosis
c. Resolution
d. Active transport
14. Some substances but not others can cross the _______________________ membrane of a cell.
This process is called _________________________________
15. How are facilitated diffusion and active transport similar? How are they different?
______________________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
16. Which transport process is shown in the illustration below?
a. Osmosis
b. Diffusion
c. Endocytosis
d. Exocytosis
17. Draw an arrow to show the overall direction water will travel as a result of osmosis. (The vertical
line is a cell membrane.) Explain why.
18. Active transport depends on (sugars/proteins) to move molecules across the cell membrane.
19. Now I know that a key function of the cell membrane is ____________________
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Word
Photosynthesis
Definition
Autotroph
Heterotroph
Chlorophyll
20. Which of the following organisms are autotrophs?
a. Fungi
b. Humans
21. What source of energy is used in photosynthesis?
a. Glucose
b. Sunlight
c. Rabbits
d. Oak tree
c. Chlorophyll
d. DNA
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22. Plants are green because of _______________, the main photosynthetic pigment in _________.
23.
24. Suppose a volcano threw so much ash into the air that it blocked much of the sunlight. How
might this event affect the ability of animals to obtain energy to live? ______________________
______________________________________________________________________________
______________________________________________________________________________
25. How do you get energy? Describe the path of energy from the sun to you, using at least two
vocabulary terms you learned in this lesson. __________________________________________
______________________________________________________________________________
______________________________________________________________________________
26. Living things get energy by _____________________or indirectly by _______________________
27. Circle two products of photosynthesis. Glucose/carbon dioxide/oxygen/chlorophyll
28. Refer to Figure 3 on page 48 of your textbook. Where does the hydrogen that is used in Stage 2
of photosynthesis come from? _____________________________________________________
29. Would you expect a plant to produce more oxygen on a sunny day or a cloudy day? Explain.
______________________________________________________________________________
Photosynthesis Equation:
+ _____________ + _____________
___________ + ___________
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Chapter 2, Lesson 2: Cellular Respiration
30. In which organelle does cellular respiration take place?
a. Nucleus
c. Chloroplast
b. Chlorophyll
d. Mitochondrion
31. _________________________ is a process that releases energy in cells without using oxygen.
32. What is one common food that is made with the help of fermentation? ____________________
33. In one or two sentences, summarize what happens during each of the two stages of cellular
respiration. ____________________________________________________________________
______________________________________________________________________________
______________________________________________________________________________
34. How is breathing related to cellular respiration? _______________________________________
______________________________________________________________________________
35. Choose the name and the cellular process that match the organelle shown below.
a. Chloroplast; cellular respiration
c. Chloroplast; photosynthesis
b. Mitochondrion; cellular respiration
d. Mitochondrion; photosynthesis
36. What is one main difference between fermentation and cellular respiration?
a. Fermentation does not require
c. Fermentation does not occur in
oxygen, while cellular respiration
animals, while cellular respiration
does.
does.
b. Fermentation does not release
d. Fermentation does not depend on
energy, while cellular respiration
the sun, while cellular respiration
does.
does.
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Cellular Respiration Equation:
__________+___________
______________+_______________+_________________
37. Look at Figure 2 Releasing Energy on the page 3 of your lesson handout. How does Stage 2 of
cellular respiration benefit a cell? ___________________________________________________
______________________________________________________________________________
______________________________________________________________________________
38. Why does cellular respiration add carbon dioxide to the atmosphere, but photosynthesis does
not? __________________________________________________________________________
______________________________________________________________________________
39. Now I know that during cellular respiration, cells ______________________________________
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