NURSING ANM AND GNM

NURSING EXAM QUESTIONS

BIOCHEMISTRY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Each enzyme only has 1 substrate that will fit its active site. What is this called?
A
reusable
B
catalyst
C
specific
D
fragile
Explanation: 

Detailed explanation-1: -Specificity is a property of the enzyme and describes how restrictive the enzyme is in its choice of substrate; a completely specific enzyme would have only one substrate.

Detailed explanation-2: -Each enzyme only has 1 substrate that will fit its active site. What is this called? Reusablility.

Detailed explanation-3: -This is because the enzyme needs to bring about a change to the substrate and not just to bind it. The Lock and Key model explains that the enzyme needs to bind substrate, but once the reaction progresses to the transition state and product formation, the active site would not be able to accommodate this change.

Detailed explanation-4: -The specific part of the enzyme where the substrate fits is called the active site. Lock-and-Key Model of. Enzyme Action.

There is 1 question to complete.