Question

Samuel found two plant specimens A and B. He listed the following characteristics.

Specimen A: Stem profusely branched, leave with reticulated venation, tap root system.
Specimen B: Stem not branched, leaves with parallel venation, fibrous root system.

From the above characters identify the class of specimen A and B.

• A. A: Monocot, B: Dicot
• B. A: Dicot, B: Monocot
• C. Both A and B are dicots
• D. Both A and B are monocots

Answer 1

Answer: (B)

A: Dicot, B: Monocot

Dicot plants are those in which the seeds have two cotyledons. Dicot plants are mostly trees, shrubs, and herbs. Dicot roots have a tap root system because the primary root arising from the radicle develops and persists throughout the life of the plant. The leaves show reticulate venation for the efficient transportation of food nutrients.

Monocot plants are those in which the seeds have only one cotyledon. Monocot plants are mostly herbs. In Monocot roots the primary root discontinuous to develop, instead the roots are formed from the base of the stem. The leaves of monocot plants have parallel venation. The leaf, in most monocots, has a sheathing leaf base.

So the correct option is B 'A: Dicot, B: Monocot'