“Plant Kingdom” MCQ with Answer Explanation : NEET 2025.

MCQ 11:
Which type of plant reproduction involves the fusion of gametes?

A) Asexual reproduction
B) Sexual reproduction
C) Vegetative propagation
D) Budding

Answer: B) Sexual reproduction

Explanation: Sexual reproduction involves the fusion of male and female gametes, leading to the formation of seeds.

MCQ 12:
What type of leaf venation is characteristic of monocots?

A) Reticulate
B) Parallel
C) Palmate
D) Pinnate

Answer: B) Parallel

Explanation: Monocots typically have parallel venation in their leaves, while dicots usually exhibit reticulate venation.

MCQ 13:
Which of the following structures is a modified leaf?

A) Root
B) Stem
C) Tendril
D) Flower

Answer: C) Tendril

Explanation: Tendrils are modified leaves (or stems) that help plants climb and support themselves.

MCQ 14:
The function of stomata in plants is primarily to:

A) Store nutrients
B) Conduct photosynthesis
C) Regulate gas exchange
D) Anchor the plant

Answer: C) Regulate gas exchange

Explanation: Stomata are small openings on the leaf surface that allow for gas exchange, facilitating respiration and photosynthesis.

MCQ 15:
Which group of plants does not produce seeds?

A) Gymnosperms
B) Angiosperms
C) Pteridophytes
D) All of the above

Answer: C) Pteridophytes

Explanation: Pteridophytes (ferns) do not produce seeds; they reproduce via spores. Gymnosperms and angiosperms do produce seeds.

MCQ 16:
The substance that provides rigidity to plant cell walls is:

A) Cellulose
B) Starch
C) Glycogen
D) Protein

Answer: A) Cellulose

Explanation: Cellulose is a polysaccharide that provides structural support and rigidity to plant cell walls.

MCQ 17:
The role of the ovule in seed plants is to:

A) Produce pollen
B) Develop into a seed
C) Store water
D) Absorb nutrients

Answer: B) Develop into a seed

Explanation: The ovule develops into a seed after fertilization when the sperm fertilizes the egg cell.

MCQ 18:
Which type of root system is characteristic of dicots?

A) Fibrous root system
B) Taproot system
C) Adventitious root system
D) None of the above

Answer: B) Taproot system

Explanation: Dicots typically have a taproot system, which features a primary root that grows deeper into the soil, with smaller lateral roots.

MCQ 19:
What is the primary function of the xylem?

A) Transport nutrients
B) Transport water
C) Photosynthesis
D) Store carbohydrates

Answer: B) Transport water

Explanation: The xylem is responsible for the upward transport of water and minerals from the roots to the rest of the plant.

MCQ 20:
Which of the following is an example of a gymnosperm?

A) Rose
B) Pine
C) Fern
D) Grass

Answer: B) Pine

Explanation: Pine trees are gymnosperms, characterized by their cones and needle-like leaves, while roses are angiosperms, ferns are pteridophytes, and grasses are also angiosperms.