Picture of Tree with Roots

Roots of Plants - Class 9 Biology Quiz

A quiz for Class 9 students on the topic of plant roots and their functions (Set 1)

Test your Class 9 Biology knowledge on plant roots, their types, functions, and modifications with this engaging quiz from Quiznest.in. Learn about taproots, fibrous roots, and root cap.

1. What is the primary function of roots in most plants?Read

A) Photosynthesis B) Absorption of water and minerals C) Support for leaves

2. Which type of root system consists of a main, thick root with smaller lateral roots branching off (e.g., carrot)?Read

A) Fibrous root system B) Adventitious root system C) Taproot system

3. What is the protective cap-like structure at the tip of a root, which covers the growing region?Read

A) Root hair B) Root cap C) Root sheath

4. Small, hair-like extensions on the surface of root epidermal cells that significantly increase the surface area for absorption are called:Read

A) Root hairs B) Lateral roots C) Prop roots

5. Which of these is an example of an adventitious root, growing from parts other than the radicle (e.g., banyan tree's hanging roots)?Read

A) Carrot B) Radish C) Prop root

6. The region of a root where most of the water and mineral absorption occurs is the:Read

A) Region of cell division B) Region of elongation C) Region of maturation (root hair zone)

7. Roots that grow downwards into the soil are exhibiting which type of tropism?Read

A) Phototropism B) Geotropism (Gravitropism) C) Thigmotropism

8. Which modified root stores food and water, often appearing fleshy and swollen (e.g., sweet potato)?Read

A) Nodulated root B) Tuberous root C) Pneumatophore

9. Specialized roots found in mangrove plants that grow upwards from the soil to obtain oxygen are called:Read

A) Buttress roots B) Stilt roots C) Pneumatophores

10. The innermost layer of the root cortex, surrounding the vascular cylinder, is known as the:Read

A) Epidermis B) Pericycle C) Endodermis

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