Question

Choose the correct answer from the alternatives given.
While visiting a field, a student of botany observed symptoms of chlorosis on some leaves. He inferred it was due to nitrogen deficiency This inference could be correct only if yellowing of leaves occurs first in:

• A. young leaves
• B. mature leaves
• C. mature leaves followed by young leaves
• D. young leaves followed by mature leaves

Answer 1

The correct option is C mature leaves followed by young leaves

The chlorophyllcontent of the plant leaves is reduced which results in pale yellow colour. Older leaves turn completely yellow. It is one of the symptoms of nitrogen deficiency.

So the correct answer is "mature leaves followed by young leaves".