ATP

1. Cells store energy when ___________.

A) ions are released into the bloodstream
B) the third phosphate group breaks off from an ATP molecule
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) contain five phosphate groups
B) help a plant produce carbon dioxide
C) produce NADPH
D) can both store energy and provide it for metabolic reactions

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

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

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

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

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

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

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

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

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) Adenosine TriPhosphorus
C) Adenine TriPhosphate
D) adenine Triple Power

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

A) It is not true. Cells do not use ATP at all.
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) ATP is efficient for transferring, but not for long-term storage of energy.

10. How can ADP be transformed into ATP?

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

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