Morphology of Flowering Plants Chapter-Wise Test 14

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which part of a seed develops into the root system of the plant?

Plumule
Radicle
Cotyledons
Scutellum
2

The radicle is the embryonic part of the seed that develops into the root system of the plant.

Which part of the stem gives rise to branches and leaves?

Internodes
Nodes
Root cap
Phloem
2

Nodes are the regions on the stem where leaves and branches originate.

Which of the following statements about fruit types is correct?

A drupe has a hard endocarp
Berry fruits have a dry pericarp
Legumes are indehiscent fruits
Aggregate fruits arise from multiple flowers
1

Drupe fruits, such as mango, have a fleshy mesocarp and a hard, stony endocarp.

Why do adventitious roots develop in some plants instead of a taproot system?

Because the radicle is short-lived or absent
To store more food
To promote flowering
Because they originate from the primary root
1

In some plants like grass and banyan, the primary root (radicle) is short-lived, and roots develop from other plant parts instead.

Which of the following plants exhibits a fibrous root system?

Mustard
Wheat
Mango
Pea
2

Wheat, a monocotyledonous plant, has a fibrous root system where roots arise from the base of the stem.

Which structural adaptation helps desert plants reduce water loss through their leaves?

Presence of large, broad leaves
Reduction of leaves into spines
Development of an extensive fibrous root system
Presence of thin cuticle
2

In xerophytic plants like cacti, leaves are modified into spines to reduce water loss and protect against herbivores.

Which part of the plant is responsible for absorbing water and minerals?

Root cap
Root hairs
Xylem
Phloem
2

Root hairs increase the surface area of absorption and help in the uptake of water and minerals from the soil.

Which type of root modification is found in plants like sweet potato?

Prop roots
Tuberous roots
Pneumatophores
Stilt roots
2

Sweet potato has tuberous roots, which store food and swell up.

Which of the following describes the function of the pericarp in fruits?

Protects the seed
Conducts photosynthesis
Facilitates pollination
Aids in nitrogen fixation
1

The pericarp is the fruit wall that protects the developing seed from external damage.

Which of the following statements about root modifications is incorrect?

Tuberous roots store food
Stilt roots provide support in maize
Pneumatophores help in water absorption
Prop roots arise from aerial parts of the stem
3

Pneumatophores help in gaseous exchange, not in water absorption. They are found in mangrove plants.

Performance Summary

Score:

Category Details
Total Attempts:
Total Skipped:
Total Wrong Answers:
Total Correct Answers:
Time Taken:
Average Time Taken per Question:
Accuracy:
0