PLANT KINGDOM | Class 11 Biology chapter 3 MCQ in Quiz format | #bio_mcq 3 | NEET 2024 | BOARD

 Class 11 Biology chapter 3 MCQ 

 PLANT KINGDOM 

[1] Natural system of classification is based on

(a) External and internal features 

(b) Ultrastructure and anatomy

(c) Embryology and phytochemistry

(d) All of the above

Ans (d) All of the above

[2] Classification which is based on evolutionary relationships of various organisms is 

(a) Artificial

(b) Natural

(c) Phylogenetic

(d) Two kingdom classification

Ans (c) Phylogenetic

[3] Classification based on cytological information like chromosome number, structure and behaviour is called

(a) Numerical Taxonomy 

(b) Cytotaxonomy

(c) Chemotaxonomy

(d) Nuclear Taxonomy 

Ans (b) Cytotaxonomy

[4] The pigment that gives class-rhodophyceae (red algae) its distinctive red colour is 

(a) Chlorophyll-a, b

(b) Chlorophyll-a, c

(c) Chlorophyll-a, d

(d) Chlorophyll-a, c and d

Ans (c) Chlorophyll-a, d

[5] Which one of the following is not a character of brown algae? 

(a) Presence of chlorophyll a and b

(b) It remains attached to substratum

(c) Presence of chlorophyll a and c

(d) Presence of fucoxanthin

Ans (a) Presence of chlorophyll a and b

[6] The plant body of the brown algae is attached to the substratum by 

(a) Holdfast

(b) Stipe

(c) Stalk

(d) Frond

Ans (a) Holdfast

[7] Algae are classified into three classes on the basis of

(a) Type of pigment 

(b) Type of stored food material

(c) Type of reproduction

(d) Both (a) and (b)

Ans (d) Both (a) and (b)

[8] Which type of life-cycle is shown by Kelps, Ectocarpus and Polysiphonia? 

(a) Haplontic

(b) Diplontic

(c) Haplo-diplontic

(d) Isomorphic

Ans (c) Haplo-diplontic

[9] Find out the incorrect match: 

(a) Ulothrix and Spirogyra— Filamentous algae

(b) Chlamydomonas— Unicellular flagellate algae

(c) Chlorella— Unicellular, non-flagellate algae

(d) Volvox— Colonial, non-filagellate algae

Ans (d) Volvox— Colonial, non-filagellate algae

[10] The most common type of spore produced during asexual reproduction of algae is

(a) Aplanospore

(b) Endospore

(c) Zoospore

(d) Oospore

Ans (c) Zoospore

[11] The type of chloroplasts observed in class Chlorophyceae is

(a) Discoid and plate-like

(b) Spiral or ribbon-shaped

(c) Reticulate and cup-shaped

(d) All of the above

Ans (d) All of the above

[12] Agar-Agar is obtained from 

(a) Gigartina

(b) Gelidium

(c) Gracillaria

(d) All of these

Ans (d) All of these

[13] Independent sporophyte is not found in 

(a) Bryophyta

(b) Pteridophyta

(c) Gymnosperm

(d) Angiosperm

Ans (a) Bryophyta

[14] Which of the following is used as a fuel and has a good capacity of water absorption? 

(a) Riccia

(b) Marchantia

(c) Sphagnum

(d) Funaria

Ans (c) Sphagnum

[15] What is the unique feature of bryophytes?

(a) Vascular bundles 

(b) Medicinal importance

(c) Gametophyte attached to the sporophyte

(d) Sporophyte attached to the gametophyte

Ans (d) Sporophyte attached to the gametophyte

[16] Bryophytes are called amphibians of the plant kingdom because 

(a) Bryophytes can live in soil but are dependent on water for sexual reproduction.

(b) They usually occur in damp, humid and shaded area.

(c) They play an important role in plant succession on bare rocks and soil.

(d) All of the above.

Ans (a) Bryophytes can live in soil but are dependent on water for sexual reproduction.

[17] Which group of plant has little economic importance but great ecological importance? 

(a) Bryophytes

(b) Pteridophytes

(c) Gymnosperms

(d) Both (a) and (b)

Ans (a) Bryophytes

[18] Which provides peat that have long been used as fuel?

(a) Marchantia

(b) Funaria 

(c) Sphagnum

(d) Polytrichum

Ans (c) Sphagnum

[19] All bryophytes (mosses, liverworts, and hornworts) share certain characteristics. These are

(a) Reproductive cells in gametangia; embryos

(b) Branched sporophytes

(c) Vascular tissues, true leaves, and a waxy cuticle

(d) Seeds

Ans (a) Reproductive cells in gametangia; embryos

[20] Moss peat is used as a packing material for sending flower and live plants to distant places because

(a) It is easily available

(b) It reduces transpiration

(c) It is hygroscopic

(d) All of the above

Ans (c) It is hygroscopic

[21] Which of the following are heterosporous pteridophytes? 

(a) Selaginella and Salvinia 

(b) Marsilea and Azolla

(c) Salvia and Salvinia

(d) Both (a) and (b)

Ans (d) Both (a) and (b)

[22] Pteridophytes are called vascular cryptogams because they are without seeds and flowers but having 

(a) Xylem

(b) Phloem

(c) Both (a) and (b)

(d) None of the above

Ans (c) Both (a) and (b)

[23] The main plant body in pteridophyte is 

(a) Sporophyte (2n) which is differentiated into root, stem and leaf

(b) Gametophyte (n) which is differentiated into root, stem and leaf

(c) Sporophyte having no root, stem and leaf

(d) Gametophyte having no root but only stem and leaf

Ans (a) Sporophyte (2n) which is differentiated into root, stem and leaf

[24] In pteridophytes, well-differentiated vascular tissues are found in 

(a) Roots

(b) Stems

(c) Leaves

(d) All of the above

Ans (d) All of the above

[25] Which of the following is the characteristic feature of gymnospersm? 

(a) Winged seeds

(b) Living fossils

(c) Naked seeds

(d) Multiciliated male gametes

Ans (c) Naked seeds

[26] Cycas has two cotyledons but not included in angiosperms because it has 

(a) No vessels

(b) No seeds

(c) Naked seeds

(d) Flowers

Ans (c) Naked seeds

[27] Gymnosperms differ from angiosperms in having 

(a) Vascular bundles

(b) Heterospory

(c) Seeds

(d) Ovules not enclosed in ovary

Ans (d) Ovules not enclosed in ovary

[28] In Pinus/gymnosperms, the haploid structures are:

(a) Megaspore, endosperm and embryo 

(b) Pollen grain, leaf and root

(c) Megaspore, integument and root

(d) Megaspore, pollen grain and endosperm

Ans (d) Megaspore, pollen grain and endosperm

[29] Fusion between a larger non-motile female gamete and smaller motile male gamete is called 

(a) Isogamy

(b) Anisogamy

(c) Oogamy

(d) None of the above

Ans (c) Oogamy

[30] Formation of embryo without fusion of gametes is called

(a) Apomixis

(b) Apogamy 

(c) Apospory

(d) Parthenocarpy

Ans (b) Apogamy

[31] In gymnosperms, spores are produced within sporangia that are borne on sporophylls which are arranged ______ along an axis to form lax or cones.

(a) Radially

(b) Longitudinally

(c) Spirally

(d) Transversely

Ans (c) Spirally

[32] “Chilgoza”, a gymnosperm seed, that is eaten as a “dry fruit” is produced by 

(a) Pinus roxburghii

(b) Pinus gerardiana

(c) Ginkgo biloba

(d) Cedrus deodara

Ans (b) Pinus gerardiana

[33] Polar nuclei fuse to produce 

(a) Diploid secondary nucleus 

(b) Zygote 

(c) Antipodal cells

(d) Synergids

Ans (a) Diploid secondary nucleus

[34] The role of double fertilization in angiosperms is to produce

(a) Endosperm

(b) Integuments 

(c) Cotyledons

(d) Endocarp

Ans (a) Endosperm

[35] The seed coat in both gymnosperms and angiosperms is derived from: 

(a) Megaspore 

(b) Microspore 

(c) Integument of megasporangium or ovule

(d) Microsporangium

Ans (c) Integument of megasporangium or ovule

[36] Which one of the following statements is wrong? (2016 - II)

(a) Agar-agar is obtained from Gelidium and Gracilaria

(b) Laminaria and Sargassum are used as food

(c) Algae increase the level of dissolved oxygen in the immediate environment 

(d) Algin is obtained from red algae, and carrageen from brown algae

Ans (d) Algin is obtained from red algae, and carrageen from brown algae

[37] Floridean starch has structure similar to: (2020)

(a) Amylopectin and glycogen

(b) Mannitol and algin

(c) Laminarin and cellulose

(d) Starch cellulose

Ans (a) Amylopectin and glycogen

[38] Male and female gametophytes do not have an independent free living existence in: (2020 Covid Re-NEET)

(a) Algae

(b) Angiosperms 

(c) Bryophytes

(d) Pteridophytes

Ans (b) Angiosperms

[39] Which of the following algae produce Carrageen? (2021)

(a) Brown algae

(b) Red algae 

(c) Blue-green algae

(d) Green algae 

Ans (b) Red algae

[40] Which of the following statements is incorrect about gymnosperms? (2020 Covid Re-NEET)

(a) Male and female gametophytes are free living 

(b) Most of them have narrow leaves with thick cuticle

(c) Their seeds are not covered

(d) They are heterosporous

Ans (a) Male and female gametophytes are free living

🌟 Winged pollen grains are present in (2018)

(a) Mustard

(b) Cycas 

(c) Mango

(d) Pinus

Ans (d) Pinus

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