BIOMOLECULES AND ENZYMES

BIOLOGY

ENZYMES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A substrate is:
A
A. The reactant that an enzyme acts on when it catalyzes a chemical reaction
B
B. The product that an enzyme acts on when it catalyzes a chemical reaction
C
A and B
D
None of the above
Explanation: 

Detailed explanation-1: -substrate: A reactant in a chemical reaction is called a substrate when acted upon by an enzyme. induced fit: Proposes that the initial interaction between enzyme and substrate is relatively weak, but that these weak interactions rapidly induce conformational changes in the enzyme that strengthen binding.

Detailed explanation-2: -In biochemistry, the substrate is a molecule upon which an enzyme acts. Enzymes catalyze chemical reactions involving the substrate(s). In the case of a single substrate, the substrate bonds with the enzyme active site, and an enzyme-substrate complex is formed.

Detailed explanation-3: -When an enzyme binds its substrate, it forms an enzyme-substrate complex. This complex lowers the activation energy of the reaction and promotes its rapid progression by providing certain ions or chemical groups that actually form covalent bonds with molecules as a necessary step of the reaction process.

Detailed explanation-4: -The Catalytic Activity of Enzymes First, they increase the rate of chemical reactions without themselves being consumed or permanently altered by the reaction. Second, they increase reaction rates without altering the chemical equilibrium between reactants and products.

Detailed explanation-5: -The reactant in an enzyme-catalyzed reaction is called a substrate.

There is 1 question to complete.