Microbiology - Enzyme Reaction
Exercise :: Enzyme Reaction - Section 1
- Enzyme Reaction - Section 1
| 6. |
If the Keq for an enzymatic reaction is greater than 1, the reaction |
| A. |
will be endergonic | | B. |
can not occur without the input of energy | | C. |
both (a) and (b) | | D. |
none of these |
Answer: Option D
Explanation:
|
| 7. |
An exergonic reaction is one that |
| A. |
requires energy to proceed | | B. |
releases energy for work | | C. |
gives off much heat | | D. |
looses energy |
Answer: Option B
Explanation:
|
| 8. |
If the free energy change (ΔG) in a reaction is a negative value, it indicates that the |
| A. |
reaction releases energy | | B. |
reaction absorbs energy | | C. |
reaction is in negative direction | | D. |
reaction is in positive direction |
Answer: Option A
Explanation:
|
| 9. |
To a living organism, which of the following has the greatest amount of available energy per molecule? |
Answer: Option A
Explanation:
|
| 10. |
Which of the following is the best evidence for the lock and key theory of enzyme action? |
| A. |
Compounds similar in structure to the substrate inhibit enzyme activity | | B. |
Enzymes are found in living organisms and speed up certain reactions | | C. |
Enzymes speed up reactions by definite amounts | | D. |
Enzymes determine the direction of a reaction |
Answer: Option A
Explanation:
|
