ATP

1. Cells store energy when ___________.

A) the third phosphate group breaks off from an ATP molecule
B) ions are released into the bloodstream
C) they break down sucrose to glucose and fructose
D) a third phosphate group is bonded to to an ADP molecule

2. ATP molecule

A) can both store energy and provide it for metabolic reactions
B) contain five phosphate groups
C) help a plant produce carbon dioxide
D) produce NADPH

3. Which of the following is not part of adenosine diphosphate?

A) two phosphate groups
B) glucose
C) adenine
D) ribose

4. Which phrase best describes the function of the ATP molecule?

A) stores energy
B) carries energy
C) absorbs energy
D) converts energy

5. Energy is released from ATP when the bond is broken between ________.

A) ribose and a phosphate group
B) two phosphate groups
C) adenine and ribose
D) adenine and a phosphate group

6. When ADP is converted to ATP the enzyme _______ is used.

A) ATP synthase
B) rubioase
C) amylase
D) ATPase

7. Glucose breaks down to give ____ATP's.

A) 36
B) 7
C) 146
D) 12

8. What does ATP stand for?

A) Adenine TriPhosphate
B) adenine Triple Power
C) Adenosine TriPhosphorus
D) adenosine triphosphate

9. Cells have only a small amount of ATP on hand at any give time. Why is this true?

A) ATP is efficient for transferring, but not for long-term storage of energy.
B) It is not true. Cells have a great deal of ATP on hand at all times.
C) ATP releases so much energy that only small amounts are necessary.
D) It is not true. Cells do not use ATP at all.

10. How can ADP be transformed into ATP?

A) removing adenine
B) adding energy and a phosphate group
C) adding energy and another ribose
D) removing energy and a phosphate

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