Planet Kingdom 1000+ MCQ with answer for XAT

1. 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

2. Fern plant is a
A. haploid gametophyte
B. diploid gametophyte
C. diploid sporophyte
D. haploid sporophyte
Answer : C

3. Protonema and leafy stage are the predominant stage of the life cycle of
A. moss
B. dicots
C. liverwort
D. gymnosperm
Answer : A

4. Which of the following pair is incorrectly matched ?
A. Chlorophyceae Major pigments are chl a and b.
B. Phaeophyceae Cell wall is made up of cellulose and algin.
C. Rhodophyceae Stored food is mannitol.
D. Chlorophyceae Cell wall is made up of cellulose.
Answer : C

5. Which one of the following statement concerning the algae is incorrect ?
A. Most algae are photosynthetic.
B. Algae can be classified according to their pigments.
C. All algae are filamentous.
D. Spirogyra does not produce zoospores.
Answer : C

6. Which of the following class of algae is mostly found in salt water ?
A. Phaeophyceae
B. Rhodophyceae
C. Chlorophyceae
D. Both (a) and (b)
Answer : B

7. If there are 4 cells in anther, what will be the number of pollen grains?
A. 8
B. 4
C. 16
D. 12
Answer : C

8. 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

9. If the cells of root in wheat plant have 42 chromosomes, then the no. of chromosome in the cell of pollen grain is
A. 14
B. 21
C. 28
D. 42
Answer : B

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

Column-I	Column-II
(Group of Planet Kingdom)	(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

11. 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

12. 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 in brackish water.
(iv) The food in red algae is stosed 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

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

Column-I	Column-II
A. Amphibian of the	I. Sphagnum plant kingdom
B. Specialized structures	II. Angiosperms in liverworts for asexual reproduction
C. Monocotyledons and	III. Bryophytes dicotyledons
D. A plant which has	IV. Gemmae capacity to holding water

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

14. Refer the following statement(s) and identify the group of plant which is being described by 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 : C

15. 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 structre 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

16. Statement 1: Double fertilization is a characteristic feature of angiosperms.
Statement 2: Double fertilization involves two fusions.
A. Both statements -1 and statement - 2 are true and statement - 2 is the correct explanation of statement - 1.
B. Both statements -1 and statement - 2 are true but statement - 2 is not the correct explanation of statement - 1.
C. Statement -1 is true and statement - 2 is false.
D. Statement -1 is false and statement - 2 is true.
Answer : B

17. Place the following groups of plants in order, beginning with those that first appeared on the earth and progressing toward those that appeared most recently in time.
A. Gymnosperms, angiosperms, ferns, moss, algae
B. Algae, moss, ferns, gymnosperms, angiosperms
C. Moss, algae, ferns, angiosperms, gymnosperms
D. Algae, ferns, angiosperms, gymnosperms, moss
Answer : B

18. _______ represent the reproductive organs amongst gymnosperms.
A. Prothallus
B. Capsules
C. Setae
D. Cones
Answer : D

19. What is the similarity between gymnosperms and angiosperms?
A. Phloem of both have companian cells.
B. Endosperm is formed before fertilization in both.
C. Origin of ovule and seed is similar in both.
D. Both have leaves, stem and roots.
Answer : D

20. Refer the statement and answer the question. They usually reproduce vegetatively by fragmentation and asexually by non - motile spores and sexually by non - motile gametes.
Identify the group of plants and its example.
A. Mosses, Funaria
B. Red algae, Polysiphonia
C. Brown algae, Laminaria
D. Pteridophytes, Selaginella
Answer : B

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

Column-I	Column-II
(System of classification)	(Characteristics)
A. Artificial system	I. Based on few morphological of classification characters
B. Natural system	II. Based on evolutionary of classification relationships between the various organisms
C. Phylogenetic	III. Based on natural affinities system of among the organisms and classification consider external as well as internal features.

A. A II; B I; C III
B. A I; B III; C II
C. A III; B II; C I
D. A I; B II; C III
Answer : B

22. The spreading of living pteridophytes is limited and restricted to narrow geographical region because
A. gametophytic growth needs cool, damp and shady places.
B. it requires water for fertilization.
C. due to absence of stomata in leaf and absence of vascular tissue.
D. both (a) and (b)
Answer : D

23. Which of the following group of plant is being described by 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 : A

24. Classification of plants proposed by Carolus Linnaeus was artificial because it was based on
A. only a few morphological characters.
B. evolutionary tendencies which are diverse.
C. anatomical characters which are adaptive in nature.
D. physiological traits alongwith morphological characters.
Answer : A

25. 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

26. Which of the following class of algae is rarely found in fresh water ?
A. Chlorophyceae
B. Phaeophyceae
C. Rhodophyceae
D. Both (a) and (b)
Answer : B

27. In bryophytes, male and female sex organs are called ______ and ______ respectively.
A. microsporangia; macrosporangia
B. male strobili; female strobili
C. antheridia; archegonia
D. androecium; gynoecium
Answer : C

28. Chemotaxonomy is connected with
A. classification of chemicals found in plants.
B. use of phytochemical data in systematic botany.
C. application of chemicals on herbarium sheets.
D. use of statistical methods in chemical yielding plants.
Answer : B

29. Why rhodophyta exhibit a red colour ?
A. Since most rhodophyta grow at great depths, the chlorophyll can only absorb light in the red area of the spectrum.
B. The wavelengths of light that are absorbed by chlorophyll are passed to phycoerythrin (a red pigment).
C. Red pigment of rhodophyta absorbs all the light waves.
D. The light reaching the greatest depth in water is in the blue-green region of the spectrum, is absorbed by phycoerythrin.
Answer : B

30. Which of the following statement(s) is/are correct ?
A. In angiosperms,each embryo sac has a three-celled egg apparatus one egg cell and two synergids, three antipodal cells and two polar nuclei.
B. All seed bearing plants i.e., gymnosperms and angiosperms follow dipontic life patterns of plants.
C. In gymosperms, roots in some genera have fungal association in the form of mycorrhiza (Pinus) while in some others (Cycas) small specialized roots called coralloid are associated with N2 fixing cyanobacteria.
D. All of the above
Answer : D

31. Which of the following statements (i) - (v) 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

32. Which of the following pteridophytes belong to class pteropsida?
A. Equisetum and Psilotum
B. Lycopodium and Adiantum
C. Selaginella and Pteris
D. Pteris and Adiantum
Answer : D

33. A research student collected certain alga and found that its cells contained both chlorophyll a and chlorophyll d as well as phycoerythrin on the basis of his observation the students conclude that the alga belongs to
A. rhodophyceae
B. bacillariophyceae
C. chlorophyceae
D. phaeophyceae
Answer : A

34. Moss peat is used as a packing material for sending flowers and live plants to distant places because
A. it reduces transpiration.
B. it serves as a disinfectant.
C. it is easily available.
D. it is hygroscopic.
Answer : D

35. A universal feature of the life cycle of plants is
A. morphologically identical haploid and diploid stages.
B. genetically identical haploid and diploid stages.
C. alteration of generations between heteromorphic haploid gametophytes and diploid sporophytes.
D. none of the above
Answer : C

36. Statement 1: Members of phaeophyceae vary in colour from olive green to various shades of brown.
Statement 2: Phaeophyceae possess chlorophyll a, c, carotenoids and xanthophylls.
A. Both statements -1 and statement - 2 are true and statement - 2 is the correct explanation of statement - 1.
B. Both statements -1 and statement - 2 are true but statement - 2 is not the correct explanation of statement - 1.
C. Statement -1 is true and statement - 2 is false.
D. Statement -1 is false and statement - 2 is true.
Answer : A

37. 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 of man.
Answer : A

38. Which one of the following term 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

39. Flagellate isogametes and anisogametes are found in
A. Spirogyra
B. Fucus
C. Volvox
D. Chlamydomonas
Answer : D

40. 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

41. Which of the following statements are incorrect?
A. Pyrenoids contain protein besides starch.
B. Sexual reproduction may be isogamous, oogamous and anisogamous in green and brown algae.
C. Some of the members of algae also occur in association with fungi (lichen) and animals (eg, on sloth bear).
D. The leaves in pteridophytes are well adapted to withstand extremes of temperature, humidity and wind.
Answer : D

42. Which of the following statement is incorrect ?
A. Double fertilization is unique to gymnosperms and monocotyledons.
B. Sequoia, a gymnosperm, is one of the tallest tree species.
C. Phaeophyceae members possess chlorophyll a, c, carotenoids and xanthophylls.
D. Moss is a gametophyte which consists of two stages namely, protonemal stage and leafy stage.
Answer : A

43. The Natural system of classification for flowering plants was given by
A. Carolus Linnaeus
B. Bentham and Hooker
C. Engler and Prantl
D. R. H. Whittaker
Answer : B

44. 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

45. 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

46. Mosses are of great ecological importance because of
A. its contribution to prevent soil erosion.
B. its contribution in ecological succession.
C. its capability to remove CO from the atmosphere.
D. both (a) and (b)
Answer : D

47. The following statements are associated with one class of algae. Identify the class of algae.
(i) One or more storage bodies called pyrenoids located in the chloroplasts are present in the members of this class.
(ii) They have a rigid cell wall made of an inner layer of cellulose and an outer layer of pectose.
(iii) Asexual reproduction is by flagellated zoospores produced in zoosporangia.
(iv) Chlamydomonas, Volvox, Ulothrix, Spirogyra and Chara are commonly found members of this class.
A. Chlorophyceae
B. Rhodophyceae
C. Phaeophyceae
D. None of these
Answer : A

48. Mosses do not have true leaves because their leaf-like structures lack
A. starch in their chloroplast.
B. vascular tissues.
C. chlorophyll.
D. cellulose in their cell walls.
Answer : B

49. Which of the following statement(s) is incorrect about mosses ?
A. The predominant stage of its life cycle is the gametophyte which consists of two stages protonema and leafy stages.
B. Leafy stage are attached to the soil through unicellular and branched rhizoids.
C. Sex organs-antheridia and archegonia are produced at the apex of the leafy shoots.
D. All of the above
Answer : D

50. 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