Plant Kingdom

NEET Biology · 90 questions · Page 1 of 9 · Click an option or "Show Solution" to reveal answer

In which one of the following, the ovules are not enclosed by an ovary wall and remain exposed?

A Funaria

B Pinus

C Selaginella

D Wolffia

Correct Answer

Option B

Solution

The gymnosperms are plants in which the ovules are not enclosed by any ovary wall and remain exposed.

Pinus is a gymnosperm.

Funaria is a moss.

Selaginella is a pteridophyte.

Which one of the following is the characteristic feature of gymnosperms?

A Seeds are absent

B Gymnosperms have flowers for reproduction

C Seeds are enclosed in fruits

D Seeds are naked

Correct Answer

Option D

Solution

The gymnosperms are plants in which the ovules are not enclosed by an ovary wall.

The seeds that develop post-fertilization are not covered, i.e., naked.

Match List-I with List-II: Pteridophyte-Salvinia, Bryophyte-Polytrichum, Angiosperm-Salvia, Gymnosperm-Ginkgo

A A-III, B-IV, C-I, D-II

B A-IV, B-III, C-II, D-I

C A-III, B-IV, C-II, D-I

D A-IV, B-III, C-I, D-II

Correct Answer

Option D

Solution

Pteridophyte - Salvinia; Bryophyte - Polytrichum; Angiosperm - Salvia; Gymnosperm - Ginkgo.

In bryophytes, the gemmae help in which one of the following?

A Nutrient absorption

B Gaseous exchange

C Sexual reproduction

D Asexual reproduction

Correct Answer

Option D

Solution

Gemmae are green, multicellular, asexual buds which develop in small receptacles called gemma cups and help in asexual reproduction in bryophytes.

Arrange the stages in the life cycle of pteridophytes in correct sequence: A. Prothallus stage B. Meiosis in spore mother cells C. Fertilisation D. Formation of archegonia and antheridia E. Transfer of antherozoids to archegonia in water

A D, E, C, A, B

B E, D, C, B, A

C B, A, D, E, C

D B, A, E, C, D

Correct Answer

Option C

Solution

Correct sequence: B (Meiosis) → A (Prothallus) → D (Archegonia/Antheridia formation) → E (Transfer of antherozoids) → C (Fertilisation).

The correct sequence of events in the life cycle of bryophytes: A. Fusion of antherozoid with egg B. Attachment of gametophyte to substratum C. Reduction division to produce haploid spores D. Formation of sporophyte E. Release of antherozoids into water

A B, E, A, D, C

B D, E, A, B, C

C D, E, A, C, B

D B, E, A, C, D

Correct Answer

Option A

Solution

Correct sequence: B (Attachment) → E (Release of antherozoids) → A (Fusion) → D (Sporophyte formation) → C (Reduction division).

Which one of the following is not found in Gymnosperms?

A Sieve cells

B Albuminous cells

C Tracheids

D Vessels

Correct Answer

Option D

Solution

Vessels are characteristic of angiosperms. Gymnosperms primarily use tracheids for water transport rather than vessels.

Identify the incorrect pair: Sphenopsida-Adiantum, Pteropsida-Dryopteris, Psilopsida-Psilotum, Lycopsida-Selaginella

A Sphenopsida - Adiantum

B Pteropsida - Dryopteris

C Psilopsida - Psilotum

D Lycopsida - Selaginella

Correct Answer

Option A

Solution

Sphenopsida includes Equisetum, not Adiantum. Adiantum belongs to class Pteropsida.

Which of the following is the correct match?

A Gymnosperms: Cedrus, Pinus, Sequoia

B Angiosperms: Wolffia, Eucalyptus, Sequoia

C Bryophytes: Polytrichum, Polysiphonia, Sphagnum

D Pteridophytes: Equisetum, Ginkgo, Adiantum

Correct Answer

Option A

Solution

Cedrus, Pinus, and Sequoia all belong to gymnosperms.

Sequoia is a gymnosperm (not angiosperm).

Polysiphonia is red algae (not bryophyte).

Ginkgo is gymnosperm (not pteridophyte).

Q10

In Phaeophyceae, which set of statements is correct? A. Asexual reproduction by biflagellate zoospores B. Sexual reproduction by oogamous method only C. Stored food is mannitol or laminarin D. Major pigments are chlorophyll a, c, carotenoids and xanthophyll E. Cellulosic wall covered by gelatinous coating of algin

A A, B, C and D only

B B, C, D and E only

C A, C, D and E only

D A, B, C and E only

Correct Answer

Option C

Solution

A, C, D, E are correct.

B is partially wrong - Phaeophyceae can have isogamous, anisogamous or oogamous sexual reproduction, not oogamous only.

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