Mineral Nutrition In Plants Question 119
Question: Assertion : Magnesium is important in photosynthesis and carbohydrate metabolism. Reason : $ M{g^{++}} $ is involved in the synthesis of nucleic acids.
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:
Magnesium is a constituent of the chlorophyll molecule, without which photosynthesis would not occur.
Many of the enzymes involved in carbohydrate metabolism require magnesium as an activator.
Magnesium is also an activator for those enzymes involved in the synthesis of nucleic acids (DNA, RNA) from nucleotide polyphosphate.
BETA
