AnswersBasic Biology S2Cellular Respiration

Cellular Respiration Answers

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1
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How do animals get energy for their cells?

A
by sleeping
B
by eating food
C
by capturing sunlight
D
by exhaling carbon dioxide
2
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A student wrote the following chemical equation for cellular respiration.water + glucose → carbon dioxide + oxygen + energyWhat should be changed to show the correct chemical reaction?

A
Water should be traded with oxygen.
B
Glucose should be traded with oxygen.
C
Water should be traded with carbon dioxide.
D
Glucose should be traded with carbon dioxide.
3

How does cellular respiration explain why animals breathe rapidly when they are running?

A
Energy is used up while running, and cellular respiration needs oxygen to produce more energy.
B
Energy is used up while running, and cellular respiration needs carbon dioxide to produce more energy.
C
Glucose is used up while running, and cellular respiration needs oxygen to make glucose.
D
Glucose is used up while running, and cellular respiration needs carbon dioxide to make glucose.
4

Which statement describes the role of a mitochondrion in providing an organism with energy?

A
It stores glucose that is taken from food so that respiration can happen later.
B
It combines blood and oxygen so that energy can be released from glucose.
C
It is the site where oxygen combines with small molecules, releasing large amounts of energy.
D
It is the site where food is broken down into small molecules, releasing small amounts of energy.
5

Use this diagram of an animal cell to answer the question.

Question illustration
A
W
B
X
C
Y
D
Z
6

Which statements best describe the first stage of cellular respiration? Select three options.The stage happens in cytoplasm.The stage happens in mitochondria.Oxygen combines with small molecules.Glucose is broken down.Energy is released.

A
The stage happens in cytoplasm.
B
The stage happens in mitochondria.
C
Oxygen combines with small molecules.
D
Glucose is broken down.
E
Energy is released.
7

What are water and carbon dioxide in the cellular respiration reaction?

A
They are reactants because they are present before the reaction.
B
They are reactants because they are present after the reaction.
C
They are products because they are present before the reaction.
D
They are products because they are present after the reaction.
8

Cassandra made a Venn diagram to compare the two stages of cellular respiration.

Question illustration
A
Energy is released.
B
Oxygen is used up.
C
Glucose is broken down.
D
Carbon dioxide is used up.
9

Use this diagram of an animal cell to answer the question.

Question illustration
A
W
B
X
C
Y
D
Z
10

A teacher wrote this chemical equation on the board and asked the class to make it correct.water + carbon dioxide → glucose + oxygen + energyWhat should be changed to show the correct chemical reaction?

A
Carbon dioxide should be traded with glucose, and energy should be shown on both sides.
B
Water should be moved to the products side, and glucose and oxygen should both be moved to the reactants side.
C
Water and carbon dioxide should both be moved to the products side, and glucose and oxygen should be moved to the reactants side.
D
Glucose should be moved to the reactants side, and water and carbon dioxide should both be moved to the products side.

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