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Algae, Bryophytes, Pteridophytes, Gymnosperms and Angiosperms
Practice plant-kingdom with 20 free MCQ questions covering biology. Detailed explanations in English and Hindi, perfect for UPSC, SSC, and competitive exam preparation.
FreePrep.inAlgae, Bryophytes, Pteridophytes, Gymnosperms and Angiosperms20:00
Algae, Bryophytes, Pteridophytes, Gymnosperms and Angiosperms20:00
plant-kingdom — Answer Key & Explanations (20 Questions)
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Attempt the quiz above first, then review every question with its correct answer and a short explanation below.
Q1.Bryophytes are called the amphibians of the plant kingdom because they:
- A.live only in the sea
- B.live on land but need water for fertilisation✓ Correct Answer
- C.have no cells
- D.produce seeds
Explanation: Their sperm swim in water to reach the egg.
Q2.Ferns belong to the group:
- A.bryophytes
- B.gymnosperms
- C.algae
- D.pteridophytes✓ Correct Answer
Explanation: They have true roots, stems and leaves but no seeds.
Q3.Pine is an example of:
- A.an angiosperm
- B.a bryophyte
- C.an alga
- D.a gymnosperm✓ Correct Answer
Explanation: Gymnosperms bear naked seeds in cones.
Q4.Plants whose seeds are enclosed within fruits are called:
- A.gymnosperms
- B.angiosperms✓ Correct Answer
- C.pteridophytes
- D.bryophytes
Explanation: Flowering plants belong to this group.
Q5.Plants with naked seeds are called:
- A.gymnosperms✓ Correct Answer
- B.angiosperms
- C.algae
- D.mosses
Explanation: Cycas and pine are examples.
Q6.Agar, used in microbiology culture media, is obtained from:
- A.red algae✓ Correct Answer
- B.mosses
- C.ferns
- D.pine
Explanation: Gelidium and Gracilaria are sources.
Q7.Mosses belong to the group:
- A.pteridophytes
- B.gymnosperms
- C.bryophytes✓ Correct Answer
- D.angiosperms
Explanation: They lack vascular tissue.
Q8.The largest group of plants is the:
- A.gymnosperms
- B.bryophytes
- C.angiosperms✓ Correct Answer
- D.pteridophytes
Explanation: They dominate land vegetation.
Q9.Dicotyledonous plants typically have:
- A.one cotyledon and parallel venation
- B.no cotyledons
- C.three cotyledons and no veins
- D.two cotyledons and reticulate venation✓ Correct Answer
Explanation: Gram and pea are dicots.
Q10.Monocotyledonous plants typically have:
- A.two cotyledons and reticulate venation
- B.one cotyledon and parallel venation✓ Correct Answer
- C.no seeds
- D.tap roots
Explanation: Wheat and maize are monocots with fibrous roots.
Q11.Algae, fungi and bryophytes were earlier grouped together as thallophytes because their body is:
- A.not differentiated into root, stem and leaves✓ Correct Answer
- B.made of wood
- C.always underground
- D.covered with seeds
Explanation: Such an undifferentiated body is called a thallus.
Q12.Cycas is a:
- A.fern
- B.moss
- C.gymnosperm✓ Correct Answer
- D.flowering plant
Explanation: It bears naked seeds on cones.
Q13.Spirogyra is a:
- A.fungus
- B.green alga✓ Correct Answer
- C.moss
- D.fern
Explanation: It has spiral chloroplasts.
Q14.Lichens are a symbiotic association between:
- A.a moss and a fern
- B.a bacterium and a virus
- C.two fungi
- D.an alga and a fungus✓ Correct Answer
Explanation: They are indicators of air pollution.
Q15.Which of the following is a gymnosperm among the tallest trees?
- A.redwood (Sequoia)✓ Correct Answer
- B.mango
- C.banyan
- D.neem
Explanation: Coast redwoods are the tallest living trees.
Q16.Pteridophytes reproduce mainly by:
- A.spores✓ Correct Answer
- B.seeds
- C.fruits
- D.flowers
Explanation: Fern fronds bear sporangia on their undersides.
Q17.Double fertilisation is a characteristic feature of:
- A.gymnosperms
- B.angiosperms✓ Correct Answer
- C.bryophytes
- D.pteridophytes
Explanation: One male gamete fuses with the egg and another with the polar nuclei.
Q18.The endosperm in angiosperms is:
- A.haploid
- B.diploid
- C.triploid✓ Correct Answer
- D.tetraploid
Explanation: It forms from fusion of a male gamete with two polar nuclei.
Q19.The first vascular plants on land were the:
- A.bryophytes
- B.gymnosperms
- C.pteridophytes✓ Correct Answer
- D.angiosperms
Explanation: They have xylem and phloem but no seeds.
Q20.The smallest flowering plant is:
- A.Rafflesia
- B.Sequoia
- C.Eucalyptus
- D.Wolffia✓ Correct Answer
Explanation: Wolffia is a floating duckweed; Rafflesia has the largest flower.