CBSE Class 11 Biology Plant Kingdom MCQs Set F

Question: Primitive relatives of animals are
a) Protozoans
b) Bacteria
c) Humans
d) Algae
Answer: a

Question: In bryophytes, male and female sex organs are called______ and ______ respectively.
a) androecium; gynoecium
b) microsporangia; macrosporangia
c) antheridia; archegonia
d) male strobili; female strobili
Answer: c

Question: Laminaria (Kelp) and Fucus (Rock weed) are examples of
a) golden brown algae
b) brown algae
c) green algae
d) red algae
Answer: b

Question: Cycas and Adiantum resemble each other in having
a) motile sperms
b) seeds
c) vessels
d) cambium
Answer: a

Question: The natural system of classification for flowering plants was given by
a) Engler and Prantl
b) Carolus Linnaeus
c) Bentham and Hooker
d) R. H. Whittaker
Answer: c

Question: Which one of the following terms is correctly matched with their definition in Pinus?
a) Monoecious – Male (microsporangiate) and female (megasporangiate) cones are produced on same plant.
b) Monoecious – Male and female sporophylls borne on same strobilus.
c) Dioecious – Male and female cones are produced on different plants.
d) Monoecious – Micro and megasporocarp develop on same plant.
Answer: a

Question: Which one of the following statements concerning the algae is incorrect?
a) Most algae are photosynthetic.
b) Algae can be classified according to their pigments.
c) Spirogyra does not produce zoospores.
d) All algae are filamentous.
Answer: d

Question: Which of the following statement(s) is/are correct about mosses?
a) Leafy stage is attached to soil through multicellular and branched rhizoids.
b) Sex organs—antheridia and archegonia—are produced at the apex of leafy shoots.
c) The predominant stage of its life cycle is the gametophyte which consists of two stages – protonema and leafy stages.
d) All of the above
Answer: d

Question: Which of the following class of algae is mostly found in salt water?
a) Phaeophyceae
b) Chlorophyceae
c) Rhodophyceae
d) Both (a) and (b)
Answer: c

Question: Which of the following statements is incorrect?
a) Some members of algae also occur in association with fungi (lichens) and animals (e.g., sloth bear).
b) Sexual reproduction may be isogamous, oogamous and anisogamous in green and brown algae.
c) Pyrenoids contain protein besides starch.
d) The leaves in pteridophytes are well adapted to withstand extremes of temperature, humidity and wind.
Answer: d

Question: Which one of the following is the major difference between mosses and ferns?
a) Vascular bundles of ferns show xylem vessels while those of mosses lack it.
b) Sporophytes of ferns live much longer as compared to the sporophytes of mosses.
c) Mosses are facultative aerobes while ferns are obligate aerobes.
d) Ferns lack alternation of generation while mosses show the same.
Answer: b

Question: Which of the following statement(s) is/are correct?
a) In angiosperms, each embryo sac has a three-celled egg apparatus, three antipodal cells and two polar nuclei.
b) All seed-bearing plants (gymnosperms and angiosperms) follow dipontic life cycles.
c) In gymnosperms, roots in some genera have fungal association (mycorrhiza in Pinus) while in others (Cycas) coralloid roots associate with N₂-fixing cyanobacteria.
d) All of the above
Answer: d

Question: Which of the following groups of plants play an important role in plant succession on bare rocks/soil?
a) Pteridophytes
b) Bryophytes
c) Algae
d) Gymnosperms
Answer: b

Question: Flagellate isogametes and anisogametes are found in
a) Chlamydomonas
b) Spirogyra
c) Fucus
d) Volvox
Answer: a

Question: What is the similarity between gymnosperms and angiosperms?
a) Both have leaves, stem and roots.
b) Endosperm is formed before fertilization in both.
c) Phloem of both have companion cells.
d) Origin of ovule and seed is similar in both.
Answer: a

Question: Why Rhodophyta exhibit a red colour?
a) Red pigment absorbs all light waves.
b) Wavelengths absorbed by chlorophyll are passed to phycoerythrin (a red pigment).
c) Since they grow at great depths, chlorophyll can only absorb red light.
d) Blue-green light reaching depth is absorbed by phycoerythrin.
Answer: b

Question: _______ represent the reproductive organs amongst gymnosperms.
a) Capsules
b) Setae
c) Prothallus
d) Cones
Answer: d

Question: Which of the following statement is incorrect?
a) Moss is a gametophyte with two stages—protonemal and leafy.
b) Sequoia, a gymnosperm, is one of the tallest tree species.
c) Phaeophyceae members have chlorophyll a, c, carotenoids and xanthophylls.
d) Double fertilization is unique to gymnosperms and monocotyledons.
Answer: d

Question: Consider the following statements regarding gymnosperms and choose the correct option.
(i) In gymnosperms, the male and female gametophytes have an independent existence.
(ii) The multicellular female gametophyte is retained within the megasporangium.
(iii) The gymnosperms are heterosporous.
Of these statements
(a) (i) and (ii) are correct but (iii) is incorrect
(b) (i) and (iii) are correct but (ii) is incorrect
(c) (ii) and (iii) are incorrect but (i) is correct
(d) (ii) and (iii) are correct but (i) is incorrect
Answer: d

Question: Consider the following statements regarding the major pigments and stored food in the different groups of algae and choose the correct option
(i) In chlorophyceae, the stored food material is starch and the major pigments are chlorophyll-a and d.
(ii) In phaeophyceae, laminarian is the stored food and major pigments are chlorophyll-a and b.
(iii) In rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll-a, d and phycoerythrin.
(a) (i) is correct, but (ii) and (iii) are incorrect
(b) (i) and (ii) are correct, but (iii) is incorrect
(c) (i) and (iii) are correct, but (ii) is incorrect
(d) (iii) is correct, but (i) and (ii) are incorrect
Answer: d

Question: Which of the following statements with respect to gymnosperms and angiosperms is/are correct?
(i) The process of double fertilization is present in gymnosperms.
(ii) Angiosperms range in size from microscopic Wolffia to tall trees of Sequoia.
(iii) In gymnosperms, the seeds are not covered.
(iv) In gymnosperms, the male and female gametophytes have an independent free living existence.
Of the above statements
(a) (i) and (ii)
(b) (iii) only
(c) (ii) and (iii)
(d) (iii) and (iv)
Answer: b

Question: Which of the following statement(s) is/are correct about pteridophytes ?
(i) The main plant body is a sporophyte which is differentiated into true roots and leaves.
(ii) The leaves are small (microphylls) as in ferns or large (macrophylls) as in Selaginella.
(iii) Genera like Selaginella and Salvinia which produce two kinds of spores–macro (large) and micro (small) spores, are known as heterospores.
(iv) Common examples are Funaria, Polytrichum and Sphagnum.
(a) Both (i) and (ii)
(b) Both (ii) and (iii)
(c) Both (i) and (iii)
(d) All of these
Answer: c

Question: Which of the following statement(s) is/are correct about gemmae ?
(i) These are specialised structures by which asexual reproduction take place in liverworts.
(ii) They are green, multicellular and asexual buds.
(iii) They develop in small receptacles called gemma cups.
(iv) They detach from parent body and germinate to form new individuals.
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i), (ii) and (iii)
(d) All of these
Answer: d

Question: Read the following statements and choose the correct option.
(i) In rhodophyceae, food is stored in the form of mannitol and laminarin.
(ii) The ovules of gymnosperms are not enclosed by ovary wall.
(iii) Salvinia is heterosporous.
(iv) In the diplontic life-cycle, the free living gametophyte represents the dominant phase.
(a) (ii) and (iii) are correct but (i) and (iv) are incorrect.
(b) (ii) and (iv) are correct but (i) and (iii) are incorrect.
(c) (iii) and (iv) are correct but (i) and (ii) are incorrect.
(d) (i) and (ii) are correct but (iii) and (iv) are incorrect.
Answer: a

Question: Which one of the following is a correct statement?
(a) Pteridophyte gametophyte has a protonemal and leafy stage.
(b) In gymnosperms, female gametophyte is free-living.
(c) Antheridiophores and archegoniophores are present in pteridophytes.
(d) Origin of seed habit can be traced in pteridophytes.
Answer: d

Question: Which of the following statement(s) is/are correct?
(i) Green algae are the members of chlorophyceae.
(ii) Brown algae are found primarily in marine habitates
(iii) Some red algae are found in fresh water, mostly occur in salt water, some are found in brackish water.
(iv) The food in red algae is stored as floridean starch.
(v) Red alga may occur in both well-lighted regions close to water-surface and also at great depths in oceans
where light penetration is little.
(a) (i) and (v) only
(b) (ii), (iii) and (iv) only
(c) All of the above
(d) None of the above
Answer: c

Question: Which of the following branch of science is being described by the given statements ?
(i) It can easily done by using computers based on all observable characters.
(ii) Numbers and codes are assigned to all the characters and the data are then processed.
(iii) Each character is given equal weightage and at the same time hundred of characters can be considered.
(a) Cytotaxonomy
(b) Numerical taxonomy
(c) Chemotaxonomy
(d) b-taxonomy
Answer: b

Question: Which of the following statements with respect to algae are correct.
(i) Fusion between one large, non-motile female gamete and a smaller, motile male gamete is termed as oogamous.
(ii) Fusion of two gametes dissimilar in size is termed as oogamous.
(iii) Fusion of two gametes similar in size is called anisogamous.
(iv) In chlorophyceae, the major pigments are chlorophyll a and b , and the food is stored as starch.
(v) In rhodophyceae, the major pigments are chlorophyll a and d , and the food is stored as mannitol.
(a) (i) and (v)
(b) (iii) and (v)
(c) (i) and (ii)
(d) (i) and (iv)
Answer: d

Question: Which of the following statement(s) is/are correct about angiosperms ?
(i) In angiosperms or flowering plants, the pollen grains and ovules are developed in specialised structure called flowers.
(ii) They are divided into two classes : the dicotyledons and the monocotyledons.
(iii) The male sex organ in a flower is the pistil or the carpel.
(iv) The female sex organ is the stamen.
(a) Only (i)
(b) Both (i) and (ii)
(c) Both (ii) and (iv)
(d) All of these
Answer: b

Question: Which of the following statements about algae is/are correct?
(i) Algae are chlorophyll – bearing simple, thalloid,heterotrophic and aquatic (both fresh water and marine) organisms.
(ii) Algae reproduce by vegetative means only.
(iii) Fusion of two gametes dissimilar in size is termed as oogamous.
(iv) A few of the massive forms of algae such as kelps, form massive plant bodies.
(a) Only (i)
(b) Both (i) and (iii)
(c) Only (iv)
(d) All of these
Answer: c

Question: Match column-I with column-II and choose the correct option.

Column-I Column-II
A. Phaeophyceae I. Have an elaborate mechanism of spore dispersal
B. Rhodophyceae II. first terrestrial plant with vascular tissue-phloem and xylem
C. Mosses III. Asexual reproduction by biflagellate zoosposes
D. Pteridophytes IV. Polysiphonia, Porphyra, Gracilaria
(a) A – III; B – IV; C – I; D – II
(b) A – IV; B – III; C – I; D – II
(c) A – IV; B – III; C – II; D – I
(d) A – IV; B – I; C – III; D – II
Answer: a

Question: Refer to the following statement(s) and identify the group of plant which is being described by the given statements?
(i) They include various mosses and liverworts that are found commonly growing in moist shaded areas in the hills.
(ii) They lack true roots, stem or leaves.
(iii) The main plant body is haploid.
(iv) They produce a multicellular body sporophyte which is not free living but attached to the photosynthetic gametophyte and derives nourishment from it.
(a) Algae
(b) Fungi
(c) Bryophytes
(d) Pteridophytes
Answer: a

Question: Which of the following group of plant is being described by the given statements ?
(i) The plant body is thalloid.
(ii) Asexual reproduction takes place by fragmentation of thalli, or by the formation of specialized structures called gemmae.
(iii) The sporophyte is differentiated into a foot, seta and capsule.
(iv) They grow usually in moist and shady habitats.
(a) Liverworts
(b) Moss
(c) Fern
(d) Gymnosperm
Answer: c

Question: Match the column-I with column-II and choose the correct option.

Column-I Column-II
A. Amphibian of the plant kingdom                                                         I. Sphagnum
B. Specialized structures in liverworts for asexual reproduction           II. Angiosperms
C. Monocotyledons and dicotyledons                                                   III. Bryophytes
D. A plant which has capacity to holding water                                     IV. Gemmae
(a) A – III; B – IV; C – I; D – II
(b) A – III; B – IV; C – II; D – I
(c) A – IV; B – III; C – II; D – I
(d) A – III; B – II; C – IV; D – I
Answer: b

Question: Which of the following group of plant is being described by the given statements ?
(i) They are plants in which the ovules are not enclosed by any ovary wall and remain exposed before and after fertilization.
(ii) The giant red wood tree Sequoia is one of the tallest tree species of the group.
(iii) The roots are generally tap roots.
(iv) They are heterosporous and they produce haploid microspores and megaspores.
(a) Algae
(b) Bryophytes
(c) Gymnosperms
(d) Pteridophytes
Answer: c

Question: The heterosporous pteridophyte belonging to the class lycopsida is
(a) Selaginella
(b) Psilotum
(c) Equisetum
(d) Pteris
Answer: a

Question: Read the following statements and answer the question.
(i) Sporophytic generation is represented only by the one-celled zygote.
(ii) Meiosis in the zygote results in the formation of haploid spores.
(iii) The dominant, photosynthetic phase in such plants is free-living gametophyte.
(iv) Many algae such as Volvox, Spirogyra and some species of Chlamydomonas represent this pattern.
Which of the following pattern of life cycle of plant is described by the above statements ?
(a) Haplontic
(b) Diplontic
(c) Haplo-diplontic
(d) None of these
Answer: a

Question: Which of the following statements is/are correct ?
(i) In Equisetum, the female gametophyte is retained on the parent sporophyte.
(ii) In Ginkgo, male gametophyte is not independent.
(iii) The sporophyte in Riccia is more developed than that in Polytrichum.
(iv) Sexual reproduction in Volvox is isogamous.
(a) Two
(b) Three
(c) Four
(d) One
Answer: a

Question: Which of the following statement(s) is/are correct ?
(i) Agar, one of commercial products obtained from Laminaria and Sargassum are used to grow microbes and in preparations of ice-creams and jellies.
(ii) In phaeophyceae, major pigments are chl a, d and phycoerythrin.
(iii) Pteridophytes classified into four classes : Psilopsida, Lycopsida, Sphenopsida and Pteropsida.
(iv) Gemmae are green, multicellular, asexual buds, which develop in small receptacles called gemma cups located on the thalli.
(a) Both (i) and (ii)
(b) Both (ii) and (iv)
(c) Both (iii) and (iv)
(d) All of these
Answer: c

Question: Match the column-I with column-II and select the correct answer using the codes given below.

Column-I                                              Column-II
(Group of Plant Kindgdom)              (Examples)
A. Algae                                             I. Solanum tuberosum
B. Fungi                                            II. Equisetum
C. Angiosperm                                  III. Cycas
D. Pteridophyte                                 IV. Chlamydomonas
E. Gymnosperm                                V. Rhizopus
(a) A – V; B – IV; C – I; D – II; E – III
(b) A – IV; B – V; C – I; D – II; E – III
(c) A – IV; B – I; C – V; D – II; E – III
(d) A – IV; B – I; C – V; D – III; E – II
Answer: b

Question: Match the classes of pteridophytes given in column I with their examples given in column II and choose the correct option.

Column -I                                         Column-II
(Classes of pteridophytes)          (Examples)
A. Psilopsida                                     I. Selaginella
B. Lycopsida                                     II. Psilotum
C. Sphenopsida                                III. Dryopteris
D. Pteropsida                                    IV. Equisetum
(a) A – II; B – I; C – IV; D – III
(b) A – I; B – II; C – IV; D – III
(c) A – II; B – I; C – III; D – IV
(d) A – II; B – IV; C – I; D – III
Answer: a

Question: Pyrenoids in green algal cells are related to
(a) starch formation
(b) protein storage
(c) general metabolism
(d) enzyme secretion
Answer: a

Question: Match the column-I with column-II and choose the correct option.
   Column-I                                                            Column-II
A. Smallest flowing plant                                      I. Eucalyptus
B. Male sex organ in flowering plant                   II. Wolffia
C. Female sex organ in flowering plant              III. Stamen
D. Tallest tree                                                     IV. Pistil
(a) A – I; B – II; C – III; D – IV
(b) A – IV; B – III; C – II; D – I
(c) A – II; B – III; C – IV; D – I
(d) A – II; B – IV; C – III; D – I
Answer: c