Chapter 3: Plant Kingdom – Very Short Answer Type Questions

CBSE Class 11 Biology Very Short Answer Questions – Chapter 3: Plant Kingdom (NCERT Based)

Course Details

Course: CBSE Class 11 Biology
Syllabus: NCERT
Unit: Unit I – Diversity in Living World
Chapter: Chapter 3 – Plant Kingdom
CBSE Board Examination: Central Board of Secondary Education – Class 11 (School & Annual Examinations)

CBSE Class 11 Biology Chapter 3 Plant Kingdom – 40 Very Short Answer Questions (NCERT)

Section A: Algae (Q1–Q10)

1. What is the plant body of algae called?
   The plant body of algae is thalloid, lacking true roots, stems, and leaves.
2. Name the pigments present in green algae.
   Green algae contain chlorophyll a and chlorophyll b as photosynthetic pigments.
3. Which food is stored in Chlorophyceae?
   Chlorophyceae store food in the form of starch.
4. Name one example of brown algae.
   Sargassum is an example of brown algae.
5. Which pigment gives red algae their colour?
   Phycoerythrin gives red algae their characteristic red colour.
6. What is the stored food in red algae?
   Red algae store food as floridean starch.
7. Mention one economic importance of algae.
   Algae are used in the production of agar and algin.
8. Which algae are mostly marine?
   Phaeophyceae (brown algae) are mostly marine.
9. How do algae reproduce vegetatively?
   Algae reproduce vegetatively by fragmentation.
10. Name one edible alga.
    Spirulina is an edible alga rich in proteins.

Section B: Bryophytes (Q11–Q18)

11. Why are bryophytes called amphibians of plant kingdom?
    They grow on land but require water for fertilisation.
12. What is the dominant phase in bryophytes?
    The gametophyte is the dominant phase in bryophytes.
13. Which structures act as roots in bryophytes?
    Rhizoids act as root-like structures in bryophytes.
14. Name one example of liverwort.
    Marchantia is a common liverwort.
15. Name one example of moss.
    Funaria is an example of moss.
16. Do bryophytes have vascular tissues?
    No, bryophytes lack xylem and phloem.
17. What type of plant body is found in mosses?
    Mosses have a leafy plant body.
18. Mention one ecological role of bryophytes.
    They help in soil formation and prevent soil erosion.

Section C: Pteridophytes (Q19–Q26)

19. Which are the first vascular plants?
    Pteridophytes are the first vascular plants.
20. What is the dominant generation in pteridophytes?
    The sporophyte is the dominant generation.
21. Do pteridophytes produce seeds?
    No, pteridophytes reproduce by spores.
22. Name the vascular tissues present in pteridophytes.
    Xylem and phloem are present in pteridophytes.
23. Name one example of pteridophyte.
    Equisetum is an example of pteridophyte.
24. What is a sporophyll?
    A sporophyll is a leaf bearing sporangia.
25. What type of plant body do pteridophytes have?
    They have a well-differentiated root, stem, and leaves.
26. State one economic importance of pteridophytes.
    They are used as ornamental plants.

Section D: Gymnosperms (Q27–Q32)

27. What does the term gymnosperm mean?
    Gymnosperm means naked-seeded plants.
28. Are gymnosperm seeds enclosed in fruits?
    No, gymnosperm seeds are not enclosed in fruits.
29. Name one example of gymnosperm.
    Pinus is a common gymnosperm.
30. What type of pollination occurs in gymnosperms?
    Wind pollination occurs in gymnosperms.
31. What reproductive structures are present in gymnosperms?
    They possess male and female cones.
32. Mention one economic importance of gymnosperms.
    Gymnosperms provide timber and resins.

Section E: Angiosperms & Life Cycle Patterns (Q33–Q40)

33. What are angiosperms?
    Angiosperms are flowering plants with seeds enclosed in fruits.
34. Which process is unique to angiosperms?
    Double fertilisation is unique to angiosperms.
35. Name the two classes of angiosperms.
    Monocotyledons and dicotyledons.
36. How many cotyledons are present in monocots?
    Monocots possess a single cotyledon.
37. What type of venation is found in dicots?
    Dicots show reticulate venation.
38. What is alternation of generations?
    It is the alternation between haploid gametophyte and diploid sporophyte phases.
39. Which life cycle is seen in algae?
    Algae mainly show haplontic life cycle.
40. Which life cycle is dominant in angiosperms?
    Angiosperms show a diplontic life cycle.

Exam Relevance

✔ Strictly NCERT-based
✔ Ideal for 1-mark CBSE Class 11 questions
✔ Covers all major plant groups
✔ Useful for quick revision and concept recall