Quiz: Plant Kingdom Summary Review
This closing quiz consolidates Lesson 10: Summary of the Plant Kingdom. Across five great groups — algae, bryophytes, pteridophytes, gymnosperms and angiosperms — the plant kingdom tells one continuous story of increasing terrestrial independence, tissue differentiation and reproductive sophistication.
You will be tested on:
- The five groups of Kingdom Plantae and the evolutionary logic linking them
- Classification of algae by pigment and stored food, and bryophyte reproduction
- The sporophyte-dominated life cycle of pteridophytes
- The naked-seeded condition and cone structure of gymnosperms
- The dicotyledon–monocotyledon division of angiosperms
Read each question carefully and choose the single best answer. Explanations follow every item so you can revise as you go.
Q1. Which of the following correctly lists the five major groups of the plant kingdom?
The summary states that the plant kingdom includes algae, bryophytes, pteridophytes, gymnosperms and angiosperms. Fungi and bacteria are not members of Kingdom Plantae.
Q2. Algae are best described as:
The summary defines algae as chlorophyll-bearing, simple, thalloid, autotrophic and largely aquatic organisms.
Q3. On what basis are algae classified into Chlorophyceae, Phaeophyceae and Rhodophyceae?
The summary states that depending on the type of pigment possessed and the type of stored food, algae are classified into three classes: Chlorophyceae, Phaeophyceae and Rhodophyceae.
Q4. Which method of reproduction in algae involves the formation of gametes showing isogamy, anisogamy or oogamy?
Algae reproduce sexually by formation of gametes which may show isogamy, anisogamy or oogamy. Fragmentation is vegetative and spores are asexual.
Q5. How do algae usually reproduce vegetatively?
The summary states that algae usually reproduce vegetatively by fragmentation.
Q6. Which statement about bryophytes is correct?
Bryophytes are plants which can live in soil but are dependent on water for sexual reproduction. They lack well-differentiated vascular tissues and their main body is the gametophyte.
Q7. The plant body of bryophytes is attached to the substratum by:
The bryophyte body is thallus-like and prostrate or erect and attached to the substratum by rhizoids. They possess root-like, leaf-like and stem-like structures, not true roots.
Q8. Into which two groups are bryophytes divided?
The summary states that the bryophytes are divided into liverworts and mosses.
Q9. Which feature distinguishes liverworts from mosses according to the summary?
The plant body of liverworts is thalloid and dorsiventral whereas mosses have upright, slender axes bearing spirally arranged leaves.
Q10. In bryophytes, the main plant body is gamete-producing and is called the:
The main plant body of a bryophyte is gamete-producing and is called a gametophyte. It bears antheridia and archegonia.
Q11. The male and female sex organs borne by the bryophyte gametophyte are respectively:
The gametophyte bears the male sex organs called antheridia and female sex organs called archegonia.
Q12. In bryophytes, the zygote produces a multicellular body called the sporophyte, which in turn produces:
The zygote produces a multicellular body called a sporophyte, which produces haploid spores. The spores germinate to form gametophytes.
Q13. In pteridophytes, the main plant is:
In pteridophytes the main plant is a sporophyte which is differentiated into true root, stem and leaves, and these organs possess well-differentiated vascular tissues.
Q14. The gametophytes of pteridophytes require which conditions to grow?
The spores germinate to form gametophytes which require cool, damp places to grow.
Q15. Why is water required in the life cycle of pteridophytes?
Water is required for transfer of male gametes to the archegonium where the zygote is formed after fertilisation. The zygote then produces a sporophyte.
Q16. Gymnosperms are called naked-seeded plants because:
In gymnosperms the ovules are not enclosed by any ovary wall. After fertilisation the seeds remain exposed and therefore these plants are called naked-seeded plants.
Q17. In gymnosperms, the microsporophylls and megasporophylls are arranged spirally on an axis to form, respectively:
The sporophylls — microsporophylls and megasporophylls — are arranged spirally on axis to form male and female cones, respectively.
Q18. After fertilisation in gymnosperms, the zygote develops into an embryo and the ovules develop into:
Following fertilisation, the zygote develops into embryo and the ovules into seeds. Fruits enclose seeds only in angiosperms.
Q19. In angiosperms, the pollen grains and ovules are developed in specialised structures called:
Unlike the gymnosperms where the ovules are naked, in the angiosperms the pollen grains and ovules are developed in specialised structures called flowers.
Q20. The angiosperms are divided into two classes, namely:
The summary states that the angiosperms are divided into two classes — the dicotyledons and the monocotyledons.