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

Here below some basic MCQ’s of Plant Kingdom with answer which is explained in details. Let’s check one by one which is given below.

MCQ 1:
Which of the following is not a characteristic of gymnosperms?

A) Seeds are exposed.
B) They have flowers.
C) They possess vascular tissue.
D) They are predominantly woody plants.

Answer: B) They have flowers.

Explanation: Gymnosperms do not produce flowers; instead, they bear seeds exposed on cones. They do possess vascular tissues and are primarily woody, but flowering is characteristic of angiosperms.

MCQ 2:
Which plant group is known for having a dominant sporophyte generation?

A) Bryophytes
B) Pteridophytes
C) Gymnosperms
D) Both B and C

Answer: D) Both B and C

Explanation: Both pteridophytes (ferns) and gymnosperms have a dominant sporophyte generation. In contrast, bryophytes (mosses and liverworts) have a dominant gametophyte generation.

MCQ 3:
In angiosperms, which part of the flower is responsible for producing pollen?

A) Stigma
B) Anther
C) Ovary
D) Style

Answer: B) Anther

Explanation: The anther is the part of the stamen that produces and contains pollen. The stigma receives the pollen, while the ovary contains the ovules.

MCQ 4:
Which of the following is the largest group of plants in terms of species diversity?

A) Bryophytes
B) Pteridophytes
C) Gymnosperms
D) Angiosperms

Answer: D) Angiosperms

Explanation: Angiosperms, or flowering plants, are the largest group of plants, with the highest species diversity, including a wide range of flowering plants.

MCQ 5:
The main function of phloem in vascular plants is to:

A) Conduct water.
B) Provide structural support.
C) Transport nutrients and organic compounds.
D) Store carbohydrates.

Answer: C) Transport nutrients and organic compounds.

Explanation: Phloem is responsible for the transport of nutrients, particularly sugars produced during photosynthesis, throughout the plant. Xylem, on the other hand, is responsible for conducting water and minerals.

MCQ 6:
Which plant hormone is primarily responsible for cell elongation?

A) Auxins
B) Gibberellins
C) Cytokinins
D) Abscisic acid

Answer: A) Auxins

Explanation: Auxins are the plant hormones that promote cell elongation and play a crucial role in growth processes, including phototropism and gravitropism. Gibberellins also promote growth but are more involved in seed germination and stem elongation.

MCQ 7:
The process of photosynthesis primarily takes place in which plant cell organelle?

A) Mitochondria
B) Chloroplast
C) Ribosome
D) Nucleus

Answer: B) Chloroplast

Explanation: Photosynthesis occurs in the chloroplasts, where light energy is converted into chemical energy in the form of glucose. Mitochondria are involved in cellular respiration.

MCQ 8:
Which of the following is a non-vascular plant?

A) Fern
B) Moss
C) Pine tree
D) Flowering plant

Answer: B) Moss

Explanation: Mosses are non-vascular plants (bryophytes) that do not have specialized tissues (xylem and phloem) for transporting water and nutrients.

MCQ 9:
The main photosynthetic pigment found in plants is:

A) Carotene
B) Xanthophyll
C) Chlorophyll
D) Anthocyanin

Answer: C) Chlorophyll

Explanation: Chlorophyll is the primary pigment involved in photosynthesis, responsible for capturing light energy.

MCQ 10:
In which part of the plant does the majority of water absorption occur?

A) Leaves
B) Stem
C) Roots
D) Flowers

Answer: C) Roots

Explanation: The roots are primarily responsible for absorbing water and nutrients from the soil.