Questions: Which is NOT true about enzymes? Select one: a. They are dependent on the expenditure of ATP and phosphorylation. b. They allow for highly organized, highly regulated reactions that keep energy consumption at a minimum and energy harvesting at a maximum. c. They are catalysts that speed up a chemical reaction. d. They reduce the activation energy of a chemical reaction.

Which is NOT true about enzymes?
Select one:
a. They are dependent on the expenditure of ATP and phosphorylation.
b. They allow for highly organized, highly regulated reactions that keep energy consumption at a minimum and energy harvesting at a maximum.
c. They are catalysts that speed up a chemical reaction.
d. They reduce the activation energy of a chemical reaction.

Transcript text: Which is NOT true about enzymes? Select one: a. They are dependent on the expenditure of ATP and phosphorylation. b. They allow for highly organized, highly regulated reactions that keep energy consumption at a minimum and energy harvesting at a maximum. c. They are catalysts that speed up a chemical reaction. d. They reduce the activation energy of a chemical reaction.

Solution

The answer is the first one (or A): They are dependent on the expenditure of ATP and phosphorylation.

Explanation for each option:

a. They are dependent on the expenditure of ATP and phosphorylation.

This statement is NOT true about enzymes in general. While some enzymes do require ATP and phosphorylation to function, this is not a universal characteristic of all enzymes. Many enzymes catalyze reactions without the need for ATP or phosphorylation.

b. They allow for highly organized, highly regulated reactions that keep energy consumption at a minimum and energy harvesting at a maximum.

This statement is true. Enzymes facilitate biochemical reactions in a highly organized and regulated manner, optimizing energy use and maximizing energy harvesting.

c. They are catalysts that speed up a chemical reaction.