CBSE Class 11 Biology VBQs Plant Kingdom

Question. Male gametophyte with least number of cells present in:
(a) Pteris
(b) Funaria
(c) Lilium
(d) Pinus
Answer : C

Question. Plants commonly called vascular cryptogams are:
(a) Bryophytes
(b) Pteridophytes
(c) Algae
(d) Angiosperms
Answer : B

Question. Pteropsida includes:
(a) Equisetum and psilotum
(b) Lycopodium and Adiantum
(c) Selaginella and pteris
(d) Pteris and Adiantum
Answer : D

Question. Pteridophytes are also called
(a) Phanerogams
(b) Vascular cryptogams
(c) Amphibians of the plant kingdom
(d) Spermatophytes
Answer : B

Question. In Selaginella, trabecular are the modification of:
(a) Epidermal cells
(b) Cortical cells
(c) Endodermal cells
(d) Pericycle cells
Answer : C

Question. In pteridophytes, phloem is without:
(a) Sieve cells
(b) Sieve tubes
(c) Companion cells
(d) Bast fibre
Answer : C

Question. Indusium is found in:
(a) Algae
(b) Ferns
(c) Moss
(d) Cycas
Answer : B

Question. The kidney shaped covering of sorus is
(a) Placenta
(b) Ramentum
(c) Sporophyll
(d) Indusium
Answer : D

Question. In the prothallus of vascular cryptogram, the antherozoids and eggs mature at different times. As a result,
(a) There is no change in success rate of fertilisation
(b) There is a high degree of sterility
(c) One can conclude that the plant is apomictic
(d) Self-fertilisation is prevented
Answer : D

Question. Ramenta is the characteristic of:
(a) Marchantia
(b) Funaria
(c) Dryopteris
(d) None of these
Answer : B

Question. Leaf in young condition in fern is called:
(a) Scale leaf
(b) Sporophyll
(c) Circinate ptyxis
(d) None of these
Answer : C

Question. Which one of the following is called maiden - hair fern?
(a) Dryopteris
(b) Pteris
(c) Adiantum
(d) Lycopodium
Answer : C

Question. Dispersal of spores in ferns takes place through:
(a) Annulus
(b) Stomium
(c) Both (a) & (b)
(d) Indusium
Answer : C

Question. Characteristic of ferns is:
(a) Circinate venation
(b) Reticulate Venation
(c) Parallel venation
(d) None of these
Answer : A

Question. A drug for respiratory disorders is obtained from:
(a) Ephedra
(b) Eucalyptus
(c) Cannabis
(d) Saccharum
Answer : A

Question. Plants having (spores), xylem and phloem but lacking seeds are:
(a) Pteridophytes
(b) Gymnosperms
(c) Bryophytes
(d) Angiosperms
Answer : A

Question. Sperms of both Funaria and Pteris/Dryopteris were released together near the archegonia of Pteris/Dryopteris. Only its sperms enter the archegonia as:
(a) Pteris/Dryopteris archegonia release chemical to attract its sperms
(b) Funaria/Dryopteris sperms get killed by Pteris sperms
(c) Funaria sperms are less mobile
(d) Pteris/Dryopteris archegonia repel Funaria sperms
Answer : A

Question. Neck canal cell is absent in the archegonium of:
(a) Funaria
(b) All pteridophytes
(c) Dryopteris
(d) Cycas
Answer : D

Question. Pyrenoids are the centres for formation of:
(a) Starch
(b) Enzymes
(c) Fat
(d) Proteins
Answer : A

Question. Walking ferm is named so as:
(a) It spreads and propagates vegetatively by its leaf tips.
(b) It is dispersed through walking.
(c) Its spores are able to walk.
(d) It known walking.
Answer : A

Question. Annulus occurs in:
(a) Mosses
(b) Both mosses and ferns
(c) Annual plants
(d) Gymnosperms
Answer : B

Question. Seed habit is linked with:
(a) Homospory
(b) Heterosposy
(c) Parthenogenesis
(d) Parthenocarpy
Answer : B

Question. Which of the following is considered important in the development of Seed habit?
(a) Dependent Sporophyte
(b) Heterospory
(c) Haplontic life cycle
(d) Free-living gametophyte
Answer : C

Question. Vascular cryptogams are:
(a) Gymnosperms
(b) Angiosperms
(c) Bacteriods
(d) Pteridophytes/Ferns
Answer : D

Question. Prothallus is:
(a) Gametophyte, dioecious, autotroph present in pteridophytes
(b) Gametophyte, monoecious, autotroph found in bryophytes
(c) Sporophyte, dioecious, hetorotroph found in bryophytes
(d) Gametophyte, monoecious, autotroph present in pteridophytes
Answer : D

Question. Which one of the following is not common between Funaria and Selaginella?
(a) Roots
(b) Embryo
(c) Flagellate sperms
(d) Archegonium
Answer : A

Question. Choose the wrong statement:
(a) Gymnosperms lack vessels in their xylem.
(b) Gymnosperms does not have albuminous cells and sieve cells in their phloem.
(c) The first formed primary xylem elements are called protoxylem.
(d) Gymnosperms have albuminous cells and sieve cells in their phloem.
Answer : B

Question. Fruits are not found in gymnosperms because:
(a) They are seed less
(b) They are not pollinated
(c) They have no ovary
(d) Fertilisation does not take place
Answer : C

Question. Gymnosperms are also called soft wood spermatophytes because they lack:
(a) Cambium
(b) Phloem fibres
(c) Thick - walled tracheids
(d) Xylem fibres
Answer : D

Question. A mature pollen grain of Pinus has:
(a) 2 cells
(b) 3 cells
(c) 4 cells
(d) 5 cells
Answer : C

Question. Which is the source of Turpentine oil?
(a) Gymnospermic wood
(b) Angiospermic wood
(c) Gymnospermic seed
(d) Angiospermic seed
Answer : A

Question. In Cycas, pollination occurs at______ celled stage?
(a) One
(b) Two
(c) Three
(d) Four
Answer : C

Question. Which of the following is / are grouped under phanerogams?
(a) Angiosperms
(b) Gymnosperms
(c) Pteridophytes
(d) Both (a) & (b)
Answer : D

Question. Flagellated male gametes are present in all the three of which one of the following sets?
(a) Anthoceros, Funaria and Spirogyra
(b) Zygnema, Saprolegnia and Hydrilla
(c) Fucus, Marsilea and Calotropis
(d) Riccia, Dryopteris and Cycas
Answer : D

Question. 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
Answer : D

Question. Coralloid roots of Cycas possess a symbiotic alga:
(a) Anabaena
(b) Spirogyra
(c) Ulothrix
(d) Aulosira
Answer : A

Question. A plant having seeds but lacking flowers and fruits belongs to:
(a) Gymnosperms
(b) Mosses
(c) Ferns
(d) Pteridophytes
Answer : A

Question. Fern gametophyte is nutritionally:
(a) Photoautotroph
(b) Parasite
(c) Chemoautotroph
(d) Saprophyte
Answer : A

Question. Winged pollen grains are found in:
(a) Cycas
(b) Pinus
(c) Mango
(d) Dryopteris
Answer : B

Question. Female cone of Pinus develops seeds in:
(a) One year
(b) 2-3 year
(c) Two years
(d) Four years
Answer : B

Question. Megasporophyll is the term used in gymnosperm to denote
(a) Carpels
(b) Stamens
(c) Leaves
(d) Female cone
Answer : A

Question. Branched rhizoids and leafy gametophyes are characteristic of:
(a) All bryophytes
(b) Some pteriodophytes
(c) All pteridophytes
(d) Some bryophytes
Answer : D

Question. Gymnosperms have a mode of pollination called:
(a) Zoophily
(b) Entomophily
(c) Anemophily
(d) Hydrophily
Answer : C

Question. In Pinus, the male gametes are:
(a) Uniciliate
(b) Multiciliate
(c) Biciliate
(d) Non-ciliate
Answer : D

Question. Sago comes from:
(a) Phoenix dactylifera
(b) Areca catechu
(c) Metroxylon rumphii
(d) Calamus ritung
Answer : C

Question. Which one is living fossil?
(a) Pinus
(b) Selaginella
(c) Cycas
(d) Metasequoia
Answer : C

Question. In gymnosperms, how many male gametes are produced by each pollen grain?
(a) 4
(b) 3
(c) 2
(d) 1
Answer : C

Question. In gymnosperms, megaspore mother cell divides meiotically to form four megaspores. Out of four megaspores, one develops into a multicellular structure termed as:
(a) Female gametophyte
(b) Archegonium
(c) Ovule
(d) Strobili
Answer : A

Question. Incorrect statement about Sequoia:
(a) It is also known as red wood tree.
(b) It is one of the tallest angiosperm.
(c) It possess tap root system.
(d) Ovules are nake(d)
Answer : B

Question.  Which one of the following pairs is wrongly matched?
(a) Ginkgo – Archegonia
(b) Salvinia – Prothallus
(c) Viroids – RNA
(d) Mustard – Synergids 
 Answer : (b)

Question. How many organisms in the list given below are autotrophs?
Lactobacillus, Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosoma, Porphyra, Wolffia
(a) Four     
(b) Five
(c) Six       
(d) Three 
Answer : (c)

Question. Male and female gametophytes are independent and free-living in
(a) mustard   
 (b) castor
(c) Pinus       
(d) Sphagnum.
Answer : (d)

Question. Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms.
(a) Perianth and two integuments
(b) Embryo development and apical meristem
(c) Absence of resin duct and leaf venation
(d) Presence of vessel elements and absence of archegonia 
 Answer : (d)

Question. Conifers differ from grasses in the
(a) formation of endosperm before fertilization
(b) production of seeds from ovules
(c) lack of xylem tracheids
(d) absence of pollen tubes. 
 Answer : (a)

Question. Ectophloic siphonostele is found in
(a) Osmunda and Equisetum
(b) Marsilea and Botrychium
(c) Adiantum and Cucurbitaceae
(d) Dicksonia and Maiden hair fern. 
 Answer : (a)

Question. Match items in column I with those in column II.
Column I Column II
(A) Peritrichous flagellation       (J) Ginkgo
(B) Living fossil                       (K) Macrocystis
(C) Rhizophore                        (L) Escherichia coli
(D) Smallest flowering plant     (M) Selaginella
(E) Largest perennial alga        (N) Wolffia
Select the correct answer from the following.
(a) A - L; B - J; C - M; D - N; E - K
(b) A - K; B - J; C - L; D - M; E - N
(c) A - N; B - L; C - K; D - M; E - J
(d) A - J; B - K; C - N; D - L; E - M 
 Answer : (a)

Question. Top-shaped multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons, are characterised features of
(a) cycads
(b) conifers
(c) polypetalous angiosperms
(d) gamopetalous angiosperms.
 Answer : (a)

Question. Angiosperms have dominated the land flora primarily because of their
(a) power of adaptability in diverse habitat
(b) property of producing large number of seeds
(c) nature of self pollination
(d) domestication by man. 
 Answer : (a)

Question. Which one pair of examples will correctly represent the grouping spermatophyta according to one of the schemes of classifying plants ?
(a) Acacia, sugarcane     
(b) Pinus, Cycas
(c) Rhizopus, Triticum   
(d) Ginkgo, Pisum 
 Answer : (d)

Question. Which of the following is without exception in angiosperms?
(a) Presence of vessels       
 (b) Double fertilisation
(c) Secondary growth           
(d) Autotrophic nutrition
 Answer : (b)

Question. Which of the following plants produces seeds but not flowers?
(a) Maize         
 (b) Mint
(c) Peepal         
(d) Pinus 
 Answer : (d)

Question. Plant group with largest ovule, largest tree and largest gametes is
(a) gymnosperm         
(b) angiosperm
(c) bryophyta             
(d) pteridophyta. 
 Answer : (a)

Question. Largest sperms in the plants world are found in
(a) Banyan         
(b) Cycas
(c) Thuja             
(d) Pinus. 
 Answer : (b)

Question. A well developed archegonium with neck consisting of 4-6 rows and neck canal cells, characterises
(a) gymnosperms and flowering plants
(b) pteridophytes and gymnosperms
(c) gymnosperms only
(d) bryophytes and pteridophytes. 
 Answer : (d)

Question. Pinus differs from mango in having
(a) tree habit                                     
(b) green leaves
(c) ovules not enclosed in ovary      
(d) wood. 
 Answer : (c)

Question. Turpentine is got from
(a) angiospermous wood
(b) bryophytes
(c) gymnospermous wood
(d) ferns. 
 Answer : (c)

Question. Which one has the largest gametophyte?
(a) Cycas           
 (b) Angiosperm
(c) Selaginella     
(d) Moss 
 Answer : (d)

Question. Zygotic meiosis is characteristic of
(a) Fucus                     
(b) Funaria
(c) Chlamydomonas       
(d) Marchantia.
 Answer : (c)

Question. Life cycles of Ectocarpus and Fucus respectively are
(a) diplontic, haplodiplontic
(b) haplodiplontic, diplontic
(c) haplodiplontic, haplontic
(d) haplontic, diplontic.
 Answer : (b)

Question. Consider the following four statements whether they are correct or wrong.
A. The sporophyte in liverworts is more elaborate than that in mosses.
B. Salvinia is heterosporous.
C. The life-cycle in all seed-bearing plants is diplontic.
D. In Pinus, male and female cones are borne on different trees.
The two wrong statements together are
(a) A and C           
 (b) A and D
(c) B and C             
(d) A and B. 
 Answer : (b)

Question. Which one of the following has haplontic life cycle?
(a) Polytrichum   
(b) Ustilago
(c) Wheat           
(d) Funaria
 Answer : (d)

Question. A hill station city had abundance of different species of lichens a few years back. Since it has turned a busy tourist spot very few lichens are found there.
(a)What could be the possible reason for this? 
(b) What measures are to be taken to conserve lichens? 
Answer : (a) Lichens are called as pollution indicators. They are extremely sensitive and perish when the environment gets polluted.
(b) The environmental degradation especially air pollution should be prevented in order to conserve lichens.

Question. Your younger brother is fascinated by the fact that plants are found in the marine ecosystem.How would you explain to him about the uses of plants found in the seas? 
Answer : a. Algae are the primary producers of marine ecosystem. Half of total co₂ fixed on earth is carried out via photosynthesis by algae.
b. Some marine algae like Sargassum, Laminaria etc. are used as food.
c. Brown algae produces align
d. Red algae produces Agar and carrageen
e. Some water holding substances are also produced by some sea water algae.