Question

Consider the following statements regarding the root system of angioserms.
I. In monocots, the fibrous root system arises from base of stem.
II. Region of elongation is called root hair zone.
III. In sweet potato, adventitious roots get swollen and store food.
IV. Stem of Maiza and Sugarcane have supporting roots called prop roots.

• A. I and II correct, III and IV wrong
• B. II and III correct, I and IV wrong
• C. II and IV correct, I and III wrong
• D. I and III correct, II and IV wrong
• E. IV correct, I, II, and III wrong

Answer 1

Answer: (D)

I and III correct, II and IV wrong

D. I and III correct, II and IV wrong

Reason: after considering the the statement, it can be concluded that

• In momocotyledons, after the degradation of primary root, thin, moderately branched roots produced from the the base of the stem. Those are known as fibrous root
• Root hairs are produced from region of maturation, not from region of elongation
• Adventitious roots are found in sweet potato which stores food materials such as starch.

Stilt roots are found in maize and sugarcane, not prop roots.

So option D is correct.