Chapter Exam

Chapter 3: Plant Kingdom — Online MCQ Test

Q: Which of the following is a characteristic pigment of green algae?

Answer: A. Chlorophyll a and b — Green algae contain chlorophyll a and b, which gives them their green colour. This is a basic feature of Chlorophyceae.

Q: Which plant group has a dominant gametophyte phase in its life cycle?

Answer: C. Bryophytes — In bryophytes, the gametophyte is the dominant and independent plant body. The sporophyte remains attached to and dependent on it.

Q: The male sex organ in bryophytes is called:

Answer: B. Antheridium — Antheridium is the male reproductive structure in bryophytes. Archegonium is the female sex organ.

Q: Which of the following is a seedless vascular plant?

Answer: B. Pteridophyte — Pteridophytes possess vascular tissue but do not produce seeds. They reproduce by spores.

Q: In green algae, the reserve food material is usually:

Answer: B. Starch — Green algae store their reserve food mainly as starch. This is a characteristic feature of chlorophyceae.

Q: Which feature is common to both bryophytes and pteridophytes?

Answer: C. Requirement of water for fertilization — Both bryophytes and pteridophytes require water for the movement of male gametes during fertilization. This makes their reproduction dependent on moist conditions.

Q: Which one of the following pairs is correctly matched with the dominant generation?

Answer: C. Gymnosperms — sporophyte — Gymnosperms have a dominant sporophytic plant body. Gametophytes are highly reduced and dependent on the sporophyte.

Q: In NCERT terms, which of the following is correctly matched?

Answer: C. Salvinia — pteridophyte — Salvinia is a pteridophyte, belonging to the fern allies. The other options are incorrectly matched.

BIOLOGY · Grade 11 · CBSE(NCERT)

Practice Chapter 3: Plant Kingdom with a free chapter-wise online MCQ test for CBSE(NCERT) Grade 11 BIOLOGY. This chapter covers: Algae Bryophytes Pteridophytes Gymnosperms Angiosperms Plant Life Cycle Alternation of Generations Reproduction Seed Plants. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 3: Plant Kingdom — Important Questions & Answers (FAQ)

Frequently asked questions from CBSE(NCERT) Grade 11 BIOLOGY — Chapter 3: Plant Kingdom, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following is a characteristic pigment of green algae?

A. Chlorophyll a and b ✓
B. Chlorophyll a and c
C. Chlorophyll a only
D. Chlorophyll b and d

Answer: A. Chlorophyll a and b
Green algae contain chlorophyll a and b, which gives them their green colour. This is a basic feature of Chlorophyceae.

Which plant group has a dominant gametophyte phase in its life cycle?

A. Angiosperms
B. Gymnosperms
C. Bryophytes ✓
D. Pteridophytes

Answer: C. Bryophytes
In bryophytes, the gametophyte is the dominant and independent plant body. The sporophyte remains attached to and dependent on it.

The male sex organ in bryophytes is called:

A. Archegonium
B. Antheridium ✓
C. Sporangium
D. Protonema

Answer: B. Antheridium
Antheridium is the male reproductive structure in bryophytes. Archegonium is the female sex organ.

Which of the following is a seedless vascular plant?

A. Bryophyte
B. Pteridophyte ✓
C. Gymnosperm
D. Angiosperm

Answer: B. Pteridophyte
Pteridophytes possess vascular tissue but do not produce seeds. They reproduce by spores.

In green algae, the reserve food material is usually:

A. Laminarin
B. Starch ✓
C. Glycogen
D. Oil droplets only

Answer: B. Starch
Green algae store their reserve food mainly as starch. This is a characteristic feature of chlorophyceae.

Which feature is common to both bryophytes and pteridophytes?

A. Presence of seeds
B. Presence of vascular tissues
C. Requirement of water for fertilization ✓
D. Dominant sporophyte generation

Answer: C. Requirement of water for fertilization
Both bryophytes and pteridophytes require water for the movement of male gametes during fertilization. This makes their reproduction dependent on moist conditions.

Which one of the following pairs is correctly matched with the dominant generation?

A. Bryophytes — sporophyte
B. Pteridophytes — gametophyte
C. Gymnosperms — sporophyte ✓
D. Algae — sporophyte

Answer: C. Gymnosperms — sporophyte
Gymnosperms have a dominant sporophytic plant body. Gametophytes are highly reduced and dependent on the sporophyte.

Which sequence correctly arranges plant groups from simplest to most complex in terms of body organization?

A. Angiosperms → Gymnosperms → Pteridophytes → Bryophytes → Algae
B. Algae → Bryophytes → Pteridophytes → Gymnosperms → Angiosperms ✓
C. Bryophytes → Algae → Pteridophytes → Angiosperms → Gymnosperms
D. Pteridophytes → Bryophytes → Algae → Gymnosperms → Angiosperms

Answer: B. Algae → Bryophytes → Pteridophytes → Gymnosperms → Angiosperms
NCERT presents the plant groups in an evolutionary sequence from algae to angiosperms, with increasing complexity and adaptation to land life.

In NCERT terms, which of the following is correctly matched?

A. Marchantia — pteridophyte
B. Equisetum — gymnosperm
C. Salvinia — pteridophyte ✓
D. Cycas — angiosperm

Answer: C. Salvinia — pteridophyte
Salvinia is a pteridophyte, belonging to the fern allies. The other options are incorrectly matched.

Which one of the following is the most accurate statement about the life cycle of a typical bryophyte?

A. Sporophyte is the dominant, photosynthetic, independent phase
B. Gametophyte is dominant, and sporophyte is nutritionally dependent on it ✓
C. Both generations are absent in bryophytes
D. Gametophyte develops directly from zygote

Answer: B. Gametophyte is dominant, and sporophyte is nutritionally dependent on it
Bryophytes are characterized by a dominant gametophyte and a dependent sporophyte. The sporophyte remains attached to the gametophyte for nutrition.

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