NEET Botany Secondary Growth MCQ Question
If the cambial ring in a dicot root produces 100 units of secondary xylem, how many units of secondary phloem are produced assuming the cambium is more active on the inner side with a ratio of 4:1?
25 units
50 units
20 units
10 units
Correct Answer
Detailed Explanation
According to the NCERT context, the cambium is more active on the inner side, producing more secondary xylem than secondary phloem. With a ratio of 4:1, for every 4 units of secondary xylem, 1 unit of secondary phloem is produced. Thus, if 100 units of secondary xylem are produced, 25 units of secondary phloem are produced.
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