Question

which statements describe the characteristics of an individual protein? select two options.
it is specific to one biochemical reaction.
it increases the activation energy needed for a reaction.
it can catalyze many different reactions.
it increases the rate of a biochemical reaction.
it slows down the rate of a biochemical reaction.

Explanation:

1. Enzymes (a type of protein) have specificity, meaning they act on only one or a very limited range of biochemical reactions, matching the first statement.
2. Enzymes function as catalysts, which speed up biochemical reactions by lowering activation energy, matching the fourth statement.
3. The other statements are incorrect: catalysts lower (not increase) activation energy, individual enzymes do not catalyze many different reactions, and catalysts speed up (not slow down) reaction rates.

Answer:

• It is specific to one biochemical reaction.
• It increases the rate of a biochemical reaction.