Question 1

The region of the root that bears delicate thread-like root hairs (for absorption) is the:

Accepted Answer

Region of maturation. Root hairs, which absorb water and minerals, arise in the region of maturation (differentiation).

Question 2

Tap roots develop from the ______, characteristic of dicots:

Accepted Answer

Radicle. The primary (tap) root arises from the radicle and gives lateral roots; monocots have fibrous roots.

Question 3

Prop roots of the banyan tree and stilt roots of maize/sugarcane are examples of modifications for:

Accepted Answer

Mechanical support. Prop and stilt roots are supporting roots; storage roots include carrot/turnip; pneumatophores aid respiration.

Question 4

Pneumatophores, seen in mangroves like Rhizophora, are modified roots that help in:

Accepted Answer

Respiration (gaseous exchange in marshy soil). Pneumatophores grow vertically upward out of waterlogged soil to obtain oxygen.

Question 5

The root cap, which protects the tender root apex as it pushes through soil, is ABSENT/modified in:

Accepted Answer

Aquatic plants (root pockets) and some parasites. Many aquatic plants have root pockets instead of root caps; the root cap otherwise protects the apical meristem.

Question 6

Which correctly pairs a storage root with its plant?

Accepted Answer

Fusiform — radish; Conical — carrot; Napiform — turnip. Radish is fusiform, carrot conical, and turnip napiform — classic tap-root storage modifications.

The Root — NEET Biology MCQs with Solutions

Questions with solutions