Medical Exam-Biology  Plant Kingdom  Practice Q & A

1. If you are asked to classify the various algae into distinct groups, which of the following characters you

should choose?

a. Nature of stored food materials in the cell

b. Types of pigments present in the cell

c. Chemical composition of the cell wall

d. Structural organization of thallus

2. Which cells within the microsporangia undergo meiosis and produce microspores.

a. Zygotic cells

b. Spore mother cells

c. Archegonial cells

d. Antheridial cells

3. Archegonium is absent in

a. Thallophyta

b. Pteridophyta

c. Bryophyta

d. Gymnosperms

4. Assertion: Red algae contribute in producing coral reefs.

Reason: Some red algae secrete and deposit calcium carbonate over their walls.

a. Both the Assertion and the Reason are true and the Reason is a correct explanation of the Assertion.

b. Both the Assertion and the Reason are true but the Reason is not a correct explanation of Assertion.

c. Assertion is true but the Reason is false.

d. Assertion is false but the Reason is true.

5. After fertilization the zygote of a seed plant becomes

a. Fruit

b. Embryo

c. Seed

d. Ovule

6. A pine seed has cotyledons and tissue from the ______.

a. Male gametophyte

b. Female gametophyte

c. Megasporangium

d. pollen grain

7. Which of the following is commonly called as pond scum ?

a. Nostoc

b. Ulothrix

c. Spirogyra

d. Anabaena

8. External fertilization occurs in majority of

a. Algae

b. Fungi

c. Liverworts

d. Mosses

9. In a seed-bearing plant the megaspore develops/grows into

a. Male gametophyte

b. Female gametophyte

c. Pollen grain

d. None of these

10. A prokaryotic autotrophic nitrogen fixing symbiont found in

a. Pisum

b. Alnus

c. Cycas

d. Cicer

11. Which one of the following in spirogyra is different based on its nucleus?

a. Zygospore

b. Azygospore

c. Aplanospore

d. Akinete

12. The ladder-like structure found in spirogyra is due to

a. Scalariform conjugation

b. Lateral conjugation

c. Direct conjugation

d. Asexual reproduction

13. Besides paddy fields, cyanobacteria are also found inside vegetative part of

a. Pinus

b. Cycas

c. Equisetum

d. Psilotum

14. antheridia and Archegonia are sex organs of

a. Moss

b. Mucor

c. Spirogyra

d. Puccinia

15. Archegoniophore is found in

a. Funaria

b. Marchantia

c. Chara

d. Adiantum

16. Chlorenchyma develops in

a. Mycelium of a green mold such as Aspergillus

b. Cytoplasm of Chlorella

c. Capsule of a moss

d. Pollen tube of Pinus

17. Which of the following plants is used extensively for the study of photosynthesis?

a. Amaranthus

b. Asparagus

c. Chlorella

d. Sunflower

18. chloroplast of chlamydomonas is

a. Collar-shaped

b. Cup-shaped

c. Stellate-shaped

d. Spiral

19. chloroplast of Ulothrix is

a. Ribbon shaped and spirally coiled

b. Laminate

c. Stellate

d. Girdle shaped

20. Compared with the gametophytes of the bryophytes the gametophytes of vascular plants tend to be

a. Smaller and to have smaller sex organs

b. Smaller but to have larger sex organs

c. Larger but to have smaller sex organs

d. Larger and to have larger sex organs

21. gymnosperms are

a. Flowering plants

b. Seed bearing plants

c. Seedless flowering plants

d. Fruit bearing seed plants

22. 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. Statements (b) and (c)

b. Statements (a) and (b)

c. Statements (a) and (c)

d. Statements (a) and (d)

23. Corn and beans are often cited as representative examples of ______, respectively.

a. Ferns and mosses

b. Cycads and conifers

c. Monocots and dicots

d. Whisk ferns and horsetails

24. gymnosperms produce neither flower nor fruit because they do not possess

a. Embryo

b. Ovary

c. Ovule

d. Seed

25. Which of the following groups of algae do not have eukaryotic organization?

a. Blue green algae

b. Green algae

c. Golden brown algae

d. Red algae

26. In moss stomata appears on

a. Capsule

b. Leaves

c. Stem

d. All of these

27. Fern plant is

a. Haploid sporophyte

b. Diploid gametophyte

c. Diploid sporophyte

d. Haploid gametophyte

28. Which of the following has largest gametophyte?

a. Pinus

b. Oryza

c. Funaria

d. Selaginella

29. A fresh water green alga, rich in protein is

a. Ulothrix

b. Chlorella

c. Chlamydomonas

d. Spirogyra

30. In a flower, ______ generally consist of two pollen sacs.

a. Sepal

b. Anthers

c. Filament

d. Ovary

31. In a flower, which terminal structure is part of a stamen?

a. Anther

b. Ovary

c. Stigma

d. Style

32. Floridian starch is found in

a. Phaeophyceae

b. Chlorophyceae

c. Rhodophyceae

d. Cyanophyceae

33. Sago is obtained from

a. Angiosperms

b. Cycas

c. Pinus

d. Green algae

34. In a flowering plants megaspore undergoes mitosis and develops into a

a. Anther

b. Seed

c. Ovary

d. Sepal

35. In a seed plant the microspore gives rise to the

a. Pollen grain

b. Egg

c. Female gametophyte

d. Sporophyte

36. In gymnosperms, the ovule is naked because

a. Ovary wall is absent

b. Integuments are absent

c. Perianth is absent

d. Nucellus is absent

37. In spirogyra sexual reproduction takes place by

a. Somatogamy

b. Fragmentation

c. Conjugation

d. None of the above

38. In which of the following groups would you place a plant which produces seeds but lacks flowers?

a. Fungi

b. Pteridophytes

c. Bryophytes

d. Gymnosperms

39. gymnosperm seeds are naked due to lack of

a. Nucellus

b. Perianth

c. Pericarp

d. Integuments

40. Maiden hair, an oriental tree is also often called

a. Ginkgo

b. Thuja

c. Araucaria

d. Pinus

41. Sexual reproduction in spirogyra is an advanced feature because it shows:

a. Morphologically different sex organs

b. Same size of motile sex organs

c. Different size of motile sex organs

d. Physiologically differentiated sex organs

42. algae have cell wall made up of

a. Hemicellulose, pectins and proteins

b. Cellulose, galactans and mannans

c. Cellulose, hemicellulose and pectins

d. Pectins, cellulose and proteins

43. peristomial teeth help in

a. Reproduction

b. Dispersal of spores

c. Nutrition

d. Protection

44. Juvenile stage of moss is

a. Prothallus

b. Capsule

c. Protonema

d. All of these

45. Largest ovule is found in

a. Cycas

b. Jackfruit

c. Pinus

d. Mangifera

46. Mannitol is the stored food in

a. Gracillaria

b. Chara

c. Porphyra

d. Fucus

47. transgenic plants are the ones

a. Grown in artificial medium after hybridization in the field

b. Produced by a somatic embryo in artificial medium

c. Generated by introducing foreign DNA in to a cell and regenerating a plant from that cell

d. Produced after protoplast fusion in artificial medium

48. algae having oil as reserve food belongs to

a. Xanthophyceae

b. Rhodophyceae

c. Chlorophyceae

d. Phaeophyceae

49. Male and female gametophytes are independent and free-living in

a. Castor

b. Mustard

c. Sphagnum

d. Pinus

50. Meiosis occurs in the zygote of

a. Dryopteris

b. Chlamydomonas

c. Funaria

d. Puccinia

Answer Keys

1. b 2. b 3. a 4. a 5. b

6. b 7. c 8. a 9. b 10. c

11. a 12. a 13. b 14. a 15. b

16. c 17. c 18. b 19. d 20. a

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21. b 22. d 23. c 24. b 25. a

26. a 27. c 28. c 29. b 30. b

31. a 32. c 33. b 34. b 35. a

36. a 37. c 38. d 39. c 40. a

41. d 42. b 43. b 44. c 45. a

46. d 47. c 48. a 49. c 50. b

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