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Chapter 1: The Living World
Biodiversity; Need for classification; three domains of life; taxonomy and systematics; concept of species and taxonomical hierarchy; binomial nomenclature.
17
Chapter 2: Biological Classification
Five kingdom classifications; Salient features and classification of Monera, Protista and Fungi; Lichens, Viruses and Viroids.
28
Chapter 3: Plant Kingdom
Classification into major groups; Features and examples of Algae, Bryophyta, Pteridophyta, Gymnospermae (Excluded: Angiosperms, Plant Life Cycle & Alternation of Generations).
24
Chapter 4: Animal Kingdom
Salient features and classification: Non-chordates up to phyla level and chordates up to class level; examples of each. (No live specimens to be displayed).
34
Chapter 5: Morphology of Flowering Plants
Morphology of root, stem, leaf, inflorescence, flower, fruit, seed; description of family Solanaceae.
46

Heterospory in Pteridophytes – Selaginella and Salvinia MCQs

Heterospory in Pteridophytes — Selaginella & Salvinia (CBSE Class 11 Biology)

Heterospory in Pteridophytes — Selaginella & Salvinia (MCQs)

Unit 1: Diversity of Living Organisms — Chapter 3: Plant Kingdom
CBSE Class 11 — Subject: Biology

1. Heterospory in pteridophytes means production of:

Spores of equal size Two different-sized spores (microspores and megaspores) Only megaspores Only microspores

Correct: B. Heterospory is the production of microspores (male) and megaspores (female).

2. Which of the following pteridophytes is heterosporous?

Selaginella Lycopodium Pteris Equisetum

Correct: A. Selaginella is a classic example of heterospory among pteridophytes.

3. In heterosporous pteridophytes the gametophyte development is typically:

Exosporic and large for both sexes Always free-living for both sexes Endosporic and reduced (especially male gametophyte) Absent

Correct: C. Heterospory leads to endosporic, reduced gametophytes enclosed within spores, particularly microgametophytes.

4. Which structure in Selaginella bears spores?

Frond Sorus Rhizome Strobilus (cone)

Correct: D. Selaginella often bears spores in strobili made of sporophylls.

5. Salvinia is an example of a heterosporous aquatic fern belonging to which family?

Polypodiaceae Salviniaceae Marsileaceae Pteridaceae

Correct: B. Salvinia belongs to Salviniaceae and is heterosporous.

6. Microspores develop into:

Female gametophytes Sporophytes directly Male gametophytes (microgametophytes) Rhizoids

Correct: C. Microspores germinate to form male gametophytes which produce antheridia.

7. Megaspores give rise to:

Female gametophytes (macrogametophytes) Microgametophytes Sporophylls Prothallus always free-living

Correct: A. Megaspores develop into female gametophytes bearing archegonia.

8. Which of the following is a feature of endosporic gametophyte development?

Gametophyte is large and externally visible Gametophyte forms sporangia Gametophyte is multicellular sporophyte Gametophyte develops within the spore wall

Correct: D. Endosporic development means the gametophyte grows inside the spore wall, protected and reduced.

9. In Selaginella, a small flap-like structure at base of leaf called:

Ligule absent Ligule present Auricle Microphyll

Correct: B. Selaginella possesses a small membranous ligule at the base of each microphyll.

10. Which term describes the condition when male and female spores are produced on the same plant but different structures?

Dioecious Monoecious Heterosporous and monoecious Homospory

Correct: C. Many heterosporous plants are monoecious producing both micro- and megaspores on same plant in different sporangia.

11. In Salvinia, the megaspores are:

Larger and fewer in number Smaller and numerous Equal to microspores Absent

Correct: A. Megaspores are larger and produced in fewer numbers compared to microspores.

12. Which pteridophyte shows retention of female gametophyte within the megaspore?

Lycopodium Pteris Equisetum Selaginella

Correct: D. In Selaginella the female gametophyte develops inside the megaspore (endosporic).

13. Microsporangia are typically found on which structure of Selaginella?

Root hairs Sporophylls in strobili Leaves only Rhizome surface

Correct: B. Microsporangia are borne on sporophylls within strobili (cones) in Selaginella.

14. Which is an advantage of heterospory in plant evolution?

Production of identical gametophytes Increased spore number only Differentiation of male and female function leading to specialised gametophytes Loss of vascular tissue

Correct: C. Heterospory allows specialized male and female gametophytes, aiding reproductive efficiency and protection.

15. Which of the following is TRUE about Selaginella's gametophytes?

They are reduced and mostly endosporic They are large free-living thalli They produce seeds They lack archegonia

Correct: A. Selaginella shows reduced, endosporic gametophytes unlike the free-living prothallus of many homosporous ferns.

16. In water ferns like Salvinia, spores are produced in specialised structures called:

Rhizoids Sporocarps Fronds only Sori only

Correct: B. Some aquatic heterosporous ferns have sporocarps—specialised spore-bearing structures (notably Marsilea; Salviniaceae have modified sporocarps like sporocarps/inflorescences).

17. The microspore mother cell undergoes which process to form microspores?

Mitosis Binary fission Fusion Meiosis

Correct: D. Spore mother cells undergo meiosis to produce haploid microspores or megaspores.

18. Which genus among pteridophytes is heterosporous and notable for aerial rhizophores?

Selaginella Lycopodium Pteris Equisetum

Correct: A. Selaginella is heterosporous and some species have rhizophores; it's a lycophyte with ligules.

19. Heterospory is considered an important step towards the evolution of:

Algae Bryophytes Seed habit (spermatophytes) Fungi

Correct: C. Heterospory, with reduced endosporic gametophytes, is seen as a precursor to the seed habit.

20. In Selaginella, the microspores are typically:

Larger than megaspores Smaller and numerous Equal in size to megaspores Absent

Correct: B. Microspores are smaller and produced in larger numbers than megaspores.

21. Which of the following describes a reduced male gametophyte in heterosporous pteridophytes?

Large thalloid prothallus Free-living bisexual gametophyte Sporophytic tissue Microscopic endosporic microgametophyte

Correct: D. Microgametophytes are often microscopic and develop inside microspores (endosporic).

22. Which of the following is TRUE about ligules?

Present in Selaginella at the base of microphylls Only present in ferns like Pteris Are reproductive organs Absent in lycophytes

Correct: A. Ligules are small appendages found at the base of leaves in some lycophytes like Selaginella.

23. Which statement about Salvinia is correct?

It is a terrestrial heterosporous plant It produces seeds It is a heterosporous floating fern It lacks microspores

Correct: C. Salvinia is a floating aquatic fern and heterosporous.

24. Which of these is NOT a direct consequence of heterospory?

Differentiation of sexes in gametophytes Formation of flowers Protection of gametophyte within spore wall Reduction of gametophyte size

Correct: B. Flower formation is a feature of angiosperms and unrelated to heterospory directly.

25. Which reproductive advantage do endosporic gametophytes have?

Protection from desiccation and predators Ability to form seeds directly Increased photosynthetic area Production of flowers

Correct: A. Being enclosed within the spore wall offers protection, aiding survival in harsher conditions.

26. Which of these best describes sporophylls in Selaginella?

Leafless structures Roots modified to bear sporangia Only present in Salvinia Modified leaves that bear sporangia

Correct: D. Sporophylls are modified leaves that bear sporangia in Selaginella forming strobili.

27. Which of the following is a sign of evolutionary advancement associated with heterospory?

Free-living large gametophyte Retention and protection of gametophyte Loss of sporophyte Absence of meiosis

Correct: B. Retention and protection of the gametophyte within the spore wall is a step towards seed habit.

28. Which cellular process directly results in a haploid megaspore?

Fertilization Germination Meiosis of megaspore mother cell Mitosis of sporophyte

Correct: C. Megaspore mother cell undergoes meiosis to produce haploid megaspores.

29. In heterosporous Selaginella, which gametophyte is generally retained inside the spore?

Both male and female gametophytes are endosporic, but especially male Only female gametophyte is endosporic Neither gametophyte is endosporic Gametophytes are free-living always

Correct: A. Both gametophytes are reduced and develop within spores; microgametophytes are especially tiny and endosporic.

30. Which feature distinguishes Salvinia from many terrestrial ferns?

Presence of xylem Lack of sporophyte Production of pollen Floating habit and heterospory

Correct: D. Salvinia is adapted to a floating aquatic habit and is heterosporous, unlike many terrestrial homosporous ferns.

All questions follow NCERT CBSE Class 11 syllabus for Heterospory in Pteridophytes. Timer auto-submits when time ends.

Titles

Heterospory in Pteridophytes MCQs – CBSE Class 11 Biology Quiz
Selaginella and Salvinia MCQs – NEET & CBSE Class 11 Practice
Online Heterospory in Pteridophytes Quiz with Automatic Scoring
CBSE Class 11 Biology MCQs – Selaginella and Salvinia Quiz
NEET-UG Practice MCQs – Heterospory in Pteridophytes Online Test

Introduction Paragraph

The Heterospory in Pteridophytes MCQs provided here are carefully prepared according to the NCERT Class 11 Biology syllabus, making them extremely valuable for both CBSE board exams and NEET-UG entrance preparation. Covering key examples such as Selaginella and Salvinia, these questions highlight the significance of heterospory, endosporic gametophyte development, and its evolutionary link to the seed habit. This online quiz features automatic scoring and per-question feedback, ensuring students can assess their knowledge instantly. By practicing these MCQs, learners can strengthen their understanding of the Plant Kingdom and improve exam readiness. Attempt this quiz now to test your preparation with NCERT-based questions in a systematic way.

Keywords

Heterospory in Pteridophytes MCQs online, CBSE Class 11 heterospory quiz, NEET UG Selaginella Salvinia MCQs practice, Online Plant Kingdom heterospory test, Automatic scoring biology heterospory quiz, CBSE biology Plant Kingdom MCQs online, Class 11 Pteridophytes heterospory practice test, Selaginella and Salvinia MCQs quiz

Classification of Pteridophyta – Ferns, Lycopodium, Selaginella MCQs

Structure and Function of Ferns – Fronds, Sori, Sporangia

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Heterospory in Pteridophytes – Selaginella and Salvinia MCQs

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