Name ___________________________
Date ____________
Cellular Respiration In-Class Work
Directions: Below you will find a variety of questions on cellular respiration. As you will soon notice, the
questions are of varying formats. For short answer questions, please write in complete
sentences. For true/false questions, first determine if the statement is true or false. If the
statement is false, correct the underlined word to make the statement true.
1.
What is cellular respiration?
2.
______________________ What does ADP stand for?
3.
______________________ What does ATP stand for?
4.
______________________ Which molecule is energy-poor?
5.
______________________ Which molecule is energy-rich?
6.
An ADP/ATP molecule consists of what three parts? Label these three parts in this diagram.
Is the molecule in this diagram ADP or ATP? How do you know?
7.
What role does ADP/ATP play in living cells?
8.
Explain how energy is stored and released by ADP and ATP.
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9.
___________ True or False. Food serves as a source of energy by being a fuel for cellular respiration, as
well as by supplying the raw materials needed for the building of new molecules within a
cell.
10. ___________ True or False. The difference between ADP and ATP is that ADP has three phosphate
molecules.
11. ___________ True or False. The energy that flows through the ecosystem cannot be recycled.
12. ___________ True or False. The chemical elements essential for life cannot be recycled.
13.
Briefly describe the relationship between photosynthesis and respiration.
14.
__________________________ Which organisms perform photosynthesis?
15.
__________________________ Which organisms perform cellular respiration?
16.
__________________________ What are the products of photosynthesis?
17.
__________________________ What are the reactants of photosynthesis?
18.
__________________________ What are the products of cellular respiration?
19.
__________________________ What are the reactants of respiration?
20.
_________ In which of the following ways is photosynthesis similar to respiration?
(a) Both processes produce ATP. (b) Both processes produce ATP by generating energy
from an electron transport chain to pump hydrogen protons to an area of higher
concentration. (c) Both use ATP synthases to generate ATP. (d) Both processes produce
PGAL. (e) Both processes involve energy transformations. (f) All of the above are
correct.
_________ Energy flows through living systems from:
(a) the sun to heterotrophs and then to autotrophs
(b) autotrophs to the environment and then to heterotrophs
(c) the sun to autotrophs and then to heterotrophs
(d) the environment to heterotrophs and then to autotrophs.
21.
22.
What is the equation for cellular respiration?
23.
Aerobic respiration requires ______________________ and anaerobic does not.
24.
List the stages of cellular respiration and indicate whether each is anaerobic or aerobic.
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