ATP

1. Cells store energy when ___________.

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

2. ATP molecule

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

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

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

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

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

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

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

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

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

7. Glucose breaks down to give ____ATP's.

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

8. What does ATP stand for?

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

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

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

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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