AP BIOLOGY

BIOCHEMISTRY

ENZYMES AND METABOLISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following correctly describes enzyme structure and function?
A
The shape of an enzyme is responsible for its function.
B
All enzymes can bind to all substrates.
C
The substrate is responsible for the shape of the enzyme.
D
The location of an enzyme determines its function.
Explanation: 

Detailed explanation-1: -Which of the following correctly describes enzyme structure and function? The shape of an enzyme is responsible for its function. All enzymes can bind to all substrates. The substrate is responsible for the shape of the enzyme.

Detailed explanation-2: -Enzymes are proteins comprised of amino acids linked together in one or more polypeptide chains. This sequence of amino acids in a polypeptide chain is called the primary structure. This, in turn, determines the three-dimensional structure of the enzyme, including the shape of the active site.

Detailed explanation-3: -Answer and Explanation: The correct answer is A. Enzymes lower the activation energy of a reaction. Enzymes are biological catalysts that are known to lower the activation energy of reactions to allow the reaction rate to increase.

Detailed explanation-4: -The amino acid sequence determines the overall shape (of the polypeptide/protein/enzyme) and R-groups interact and stabilize the structure.

Detailed explanation-5: -Enzymes are folded in GLOBULAR SHAPES. The enzyme’s shape enables it to receive only one type of molecule; that molecule that will fit into it’s shape.

There is 1 question to complete.