Adenosine Triphosphate – Check Test

1. Which diagram represents a simplified structure of ATP ?

2. ATP molecules in cells are formed from

A adenosine diphosphate.

B glucose.

C adenosine triphosphate.

D enzymes.

3. Which change represents the way in which ATP is formed in cells?

A ADP + energy -> ATP + Pi

B ADP + Pi + energy -> ATP

C ADP + Pi -> ATP

D ADP + Pi -> ATP + energy

4. Which change represents the way in which ATP is broken down in cells?

A ATP -> ADP + Pi + energy

B ATP + energy -> ADP + Pi

C ATP + Pi -> ADP + energy

D ATP -> ADP + Pi

5. The energy for the formation of ATP in cells comes from

A ADP.

B glucose.

C inorganic phosphate.

D enzymes.

6. The function of ATP in cells is to

A make glucose.

B act as an enzyme.

C store food.

D act as an energy source.

7. A solution is added to muscle fibre. The fibre will contract if the

solution is

A glucose.

B ADP.

C ATP.

D phosphate.

8. A muscle fibre shrinks from 30mm to 24mm. What is the percentage decrease in length?

A 6%

B 20%

C 25%

D 80%