NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

BIO MOLECULES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens when enzymes are heated to a high temperature?
A
The enzymes die.
B
The shapes of the enzyme are altered denature
C
The enzymes’ amino acid sequence changes.
D
The enzymes remain the same
Explanation: 

Detailed explanation-1: -High heat destroys enzymes. Enzymes are protein molecules that get denatured at high temperatures. High heat breaks hydrogen and ionic bonds leading to disruption in enzyme shape. The enzyme loses its activity and can no longer bind to the substrate.

Detailed explanation-2: -The higher the temperature, the more an enzyme will vibrate. If it vibrates enough it will distort out of shape, or denature. If the temperature goes up even more, the different regions of the protein will swing so far apart from each other that they can’t come back .

Detailed explanation-3: -Denaturation of enzymes causes bonds to be broken, structure to be disrupted and it stops functioning. This happens to enzymes when they are exposed to extreme, unsuitable conditions, for instance, high temperatures or extreme pH levels.

There is 1 question to complete.