Mineral Nutrition In Plants Question 206
Question: Assertion : Manganese is an activator of enzyme nitrite reductase. Reason : Manganese deficient cells prefer ammonia over nitrate.
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: A
Solution:
Manganese plays an important role in nitrate reduction.
Manganese acts as an activator for the enzymes nitrite reductase and hydroxylamine reductase.
The preference of ammonia over nitrate as a nitrogen source by the manganese - deficient cells supports the above mentioned analysis of the role of manganese.
BETA
