Biomolecules Question 74
Question: Assertion : Enzymes lower the activation energy. Reason : A substrate molecule can be acted upon by a particular enzyme.
Options:
A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion
B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion
C) If the assertion is true but the reason is false
D) If both the assertion and reason are false
Show Answer
Answer:
Correct Answer: B
Solution:
Activation energy is an external supply of energy which is needed for the initiation of the chemical reaction.
Activation energy required for such a large number of reactions cannot be provided by living systems.
Enzymes lower the activation energy required for a reaction.
Enzymes are generally specific for their substrates.