FSc Part 1 Biology chapter 9: Kingdom Plantae MCQs with answers

By Team Megalecture · Updated 4 Nov 2026

23 exam-style questions on Kingdom Plantae, each with the answer and a short explanation. Ten of them are below to try. The chapter test draws ten fresh questions each time and is marked the moment you finish, with your score by topic.

23 questions · 2 topics · 10 per test

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What chapter 9 covers

Ten Kingdom Plantae questions with answers

Try each one, then open the answer. These ten stay the same; the test draws new ones every time.

1. A student finds a small, flat, heart-shaped green plant about 1 cm across on damp soil beneath a fern. It has rhizoids on the underside and archegonia near the notch. This structure is

  1. A
    a sorus on a fertile frond
  2. B
    the gametophyte (prothallus)
  3. C
    the protonema of a moss
  4. D
    a young sporophyte (fern seedling)
Show answer

Answer: B. A small, green, heart-shaped, rhizoid-bearing plant with archegonia is the prothallus, the independent gametophyte of a fern. The young sporophyte grows later from the zygote on the prothallus.

2. In bryophytes the dominant, independent generation is the

  1. A
    seedling
  2. B
    sporophyte
  3. C
    gametophyte
  4. D
    prothallus of a fern
Show answer

Answer: C. The green gametophyte is the main plant; the sporophyte grows on it and depends on it for water and some food.

3. A farmer grows peas in a field for one season. The wheat crop sown afterwards grows well without nitrogen fertiliser. Which explains this?

  1. A
    nitrogen fixed by Rhizobium bacteria in the pea root nodules
  2. B
    oxygen released by the pea roots into the soil
  3. C
    phosphate released by mycorrhizal fungi on the pea roots
  4. D
    nitrogen fixed by Nostoc living on the pea leaves
Show answer

Answer: A. Rhizobium bacteria in the nodules of legumes fix nitrogen, and the nitrogen compounds remain in the soil for the next crop. Mycorrhizal fungi supply phosphate, not nitrogen, and Nostoc does not live on pea leaves.

4. In the fern Adiantum, the sori are protected by

  1. A
    a layer of wax on the upper surface of the leaflet
  2. B
    the annulus, a ring of thick-walled cells around each sporangium
  3. C
    a true indusium growing out from the surface of the leaflet
  4. D
    a false indusium formed by the folded margin of the leaflet
Show answer

Answer: D. In Adiantum the sori lie under the rolled-over leaflet margin, which acts as a false indusium. The annulus helps to open a sporangium and does not cover the sorus.

5. In double fertilisation, one male gamete fuses with the egg and the other fuses with

  1. A
    the two polar nuclei
  2. B
    a synergid next to the egg cell
  3. C
    an antipodal cell at the base of the embryo sac
  4. D
    the tube nucleus of the pollen tube
Show answer

Answer: A. Male gamete + two polar nuclei gives the triploid (3n) endosperm nucleus; male gamete + egg gives the diploid zygote.

6. The endosperm (food store) in a Pinus seed is

  1. A
    diploid, formed from the tissue of the nucellus
  2. B
    triploid, formed after double fertilisation
  3. C
    triploid, formed by fusion of a sperm with two polar nuclei
  4. D
    haploid, formed from the female gametophyte
Show answer

Answer: D. In gymnosperms the endosperm is the haploid female gametophyte tissue formed before fertilisation. Triploid endosperm is found only in angiosperms.

7. Equisetum (horsetail), with jointed, ribbed stems containing silica and whorls of small leaves, belongs to

  1. A
    Sphenopsida
  2. B
    Pteropsida
  3. C
    Psilopsida
  4. D
    Lycopsida
Show answer

Answer: A. Sphenopsida have jointed stems with whorled leaves at the nodes. Lycopsida are club mosses such as Lycopodium and Selaginella.

8. According to the telome theory, megaphylls evolved from branched stem systems by three steps in the order

  1. A
    overtopping, planation, webbing
  2. B
    planation, webbing, overtopping
  3. C
    webbing, planation, overtopping
  4. D
    enation, planation, webbing
Show answer

Answer: A. One branch overtopped the others, the side branches came to lie in one plane (planation), and tissue filled the spaces between them (webbing).

9. Bryophytes are called the amphibians of the plant kingdom because they

  1. A
    pass through a swimming larval stage in water, like frogs
  2. B
    live in water throughout life, like amphibious fish
  3. C
    need water for sperm to swim to the egg
  4. D
    breathe through gills when young and lungs when adult
Show answer

Answer: C. Bryophytes live on land but their male gametes swim in a film of water to the egg, so fertilisation needs water. They have no larvae, gills or lungs.

10. A plant has flowers with five fused petals forming a wheel-shaped corolla, five stamens attached to the corolla, a superior ovary of two carpels and a fleshy berry as its fruit. Which family does it belong to?

  1. A
    Papilionaceae
  2. B
    Brassicaceae
  3. C
    Poaceae
  4. D
    Solanaceae
Show answer

Answer: D. A five-lobed fused corolla, five epipetalous stamens, a superior two-carpel ovary and berry or capsule fruits are typical of Solanaceae (potato, tomato, brinjal). Papilionaceae has a butterfly-shaped corolla and a pod, and grasses (Poaceae) have no petals.

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Ways to practise this chapter

Kingdom Plantae: questions students ask

How many Kingdom Plantae MCQs are there?

23, each with the answer and a short explanation, across 2 topics: Bryophytes and seedless vascular plants, Seed plants: gymnosperms and angiosperms. Every chapter test draws ten of them, so you can take it many times.

Is the FSc Part 1 Biology chapter 9 test free?

Yes. The test, the answers and the explanations are free and need no sign-up. Sign in only if you want your scores kept across devices.

How is the chapter test marked?

The moment you press Finish: your score, the right answer and an explanation for every question, and the ones you got wrong saved in My mistakes to retry.

Can I read the explanations in Urdu?

Yes. In practice mode and on your results you can switch the explanations to Urdu.

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