According to the induced fit hypothesis of enzyme catalysis, which if the following is correct?
a. the binding of the substrate depends on the shape of the active site
b. some enzymes change their structure when activators bind to the enzyme
c. a competitive inhibitor can outcompete the substrate for the active site
d. the binding of the substrate changes the shape of the enzyme's active site
e. the active site creates a microenvironment ideal for the reaction

the binding of the substrate changes the shape of the enzyme's active site

Explanation:

According to induced fit theory, binding of substrate to the active site of the enzyme causes a conformational change in enzyme. This is referred to as the induced-fit mechanism and was postulated by Daniel Koshland in 1958. The induced fit brings specific functional groups on the active site of the enzyme into the proper position to catalyze the reaction and thereby enhances the catalytic activity of the enzyme. The induced conformational change facilitates the formation of additional weak interactions in the transition state.

1. a tropical dry forest carries out more rapid nutrient cycling

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.