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Writer's pictureVikas Yadav

Important MCQs from Chapter Morphology of Flowering Plants | Class 12 | CBSE Board

Here are some multiple-choice questions (MCQs) on the topic "Morphology of Flowering Plants" for CBSE Class 12, with the answers provided at the end:

 

1. Which of the following is not a type of inflorescence?

   a) Spike 

   b) Raceme 

   c) Panicle 

   d) Tendril 

 

2. The ovary that consists of a single carpel is termed as:

   a) Syncarpous 

   b) Apocarpous 

   c) Monocarpous 

   d) Polycarpous 

 

3. The part of the flower that develops into a fruit is:

   a) Stigma 

   b) Style 

   c) Ovary 

   d) Anther 

 

4. Which of the following is a type of placentation where ovules are attached along the central axis of the ovary?

   a) Marginal 

   b) Axile 

   c) Parietal 

   d) Basal 

 

5. In which of the following types of inflorescence are the flowers borne on a central stem, and the pedicels are of varying lengths?

   a) Spike 

   b) Raceme 

   c) Umbel 

   d) Corymb 

 

6. A flower that contains both stamens and carpels is referred to as:

   a) Complete 

   b) Incomplete 

   c) Bisexual 

   d) Unisexual 

 

7. Which of the following is an example of a plant with a hypogynous flower?

   a) Rose 

   b) Tomato 

   c) Lily 

   d) Pea 

 

8. The term used to describe a flower with both male and female reproductive organs is:

   a) Monoecious 

   b) Dioecious 

   c) Bisexual 

   d) Unisexual 

 

9. In which type of inflorescence are all the flowers sessile and borne on a common receptacle?

   a) Panicle 

   b) Head 

   c) Spike 

   d) Raceme 

 

10. The outermost whorl of a flower is composed of:

    a) Petals 

    b) Sepals 

    c) Stamens 

    d) Carpels 

 

11. A flower with both the calyx and corolla is described as:

    a) Incomplete 

    b) Complete 

    c) Simple 

    d) Compound 

 

12. In which type of ovary position does the ovary sit above the other floral parts?

    a) Superior 

    b) Inferior 

    c) Half-inferior 

    d) Adnate 

 

13. Which of the following is true about a flower with a perigynous arrangement?

    a) The ovary is superior. 

    b) The ovary is inferior. 

    c) The ovary is half-inferior. 

    d) The ovary is surrounded by other floral parts. 

 

14. The term for a flower with both petals and sepals is:

    a) Asexual 

    b) Bisexual 

    c) Staminate 

    d) Complete 

 

15. The stalk that attaches the flower to the plant is called the:

    a) Peduncle 

    b) Pedicel 

    c) Receptacle 

    d) Sepal 

 

16. Which of the following describes a flower with only one type of perianth?

    a) Dichlamydeous 

    b) Monoclamydeous 

    c) Triclamydeous 

    d) Polyclamydeous 

 

17. The part of the flower that protects the bud before it opens is:

    a) Petal 

    b) Sepal 

    c) Stigma 

    d) Style 

 

18. In which type of placentation are ovules attached to the base of the ovary?

    a) Axile 

    b) Marginal 

    c) Basal 

    d) Parietal 

 

19. A flower that lacks either stamens or carpels is:

    a) Complete 

    b) Incomplete 

    c) Perfect 

    d) Imperfect 

 

20. Which of the following is not a component of the pistil?

    a) Stigma 

    b) Style 

    c) Anther 

    d) Ovary 

 

21. The flower of which plant is characterized by having a superior ovary, a hypogynous flower arrangement, and a bilaterally symmetrical corolla?

    a) Lily 

    b) Orchid 

    c) Rose 

    d) Pea 

 

22. Which of the following types of fruit is developed from a single ovary of a flower?

    a) Aggregate fruit 

    b) Multiple fruit 

    c) Simple fruit 

    d) Composite fruit 

 

23. In a flower, the structure responsible for producing pollen is the:

    a) Style 

    b) Stigma 

    c) Anther 

    d) Ovary 

 

24. The modified leaf structures in a flower that are often brightly colored and attract pollinators are called:

    a) Sepals 

    b) Petals 

    c) Stamens 

    d) Carpels 

 

25. Which type of placentation is found in a flower with multiple carpels, each having ovules attached to the sides of the ovary?

    a) Basal 

    b) Marginal 

    c) Axile 

    d) Parietal 

 

26. A flower with a single carpel and multiple ovules is:

    a) Apocarpous 

    b) Syncarpous 

    c) Monocarpous 

    d) Polycarpous 

 

27. The structure of a flower where the ovules are attached directly to the central axis is known as:

    a) Basal placentation 

    b) Marginal placentation 

    c) Axile placentation 

    d) Parietal placentation 

 

28. Which of the following types of inflorescence is characterized by flowers arranged in a dense head?

    a) Corymb 

    b) Umbel 

    c) Spike 

    d) Head 

 

29. The part of the flower that usually contains nectar and attracts pollinators is the:

    a) Petal 

    b) Sepal 

    c) Stigma 

    d) Ovary 

 

30. Which structure in the flower is responsible for the development of the seed after fertilization?

    a) Stigma 

    b) Style 

    c) Ovary 

    d) Anther 

 

31. A flower with a complete set of whorls (sepals, petals, stamens, and carpels) is:

    a) Perfect 

    b) Complete 

    c) Incomplete 

    d) Imperfect 

 

32. Which type of fruit is formed from a cluster of flowers, each with its own ovary?

    a) Simple fruit 

    b) Aggregate fruit 

    c) Multiple fruit 

    d) Compound fruit 

 

33. In which type of inflorescence are the flowers arranged on a central axis, with the oldest flowers at the top and the youngest at the bottom?

    a) Raceme 

    b) Panicle 

    c) Spike 

    d) Corymb 

 

34. The floral part that typically develops into the seed is:

    a) Stigma 

    b) Style 

    c) Ovary 

    d) Anther 

 

35. In a flower with a hypogynous arrangement, the ovary is:

    a) Superior 

    b) Inferior 

    c) Half-inferior 

    d) Adnate 

 

36. Which type of flower has its stamens and carpels in separate flowers on the same plant?

    a) Dioecious 

    b) Monoecious 

    c) Perfect 

    d) Imperfect 

 

37. The green, leaf-like structures that protect the flower bud are called:

    a) Petals 

    b) Sepals 

    c) Carpels 

    d) Stamens 

 

38. The structure that supports the flower and contains the receptacle is the:

    a) Peduncle 

    b) Pedicel 

    c) Style 

    d) Ovary 

 

39. Which term describes a flower with only one type of perianth, such as only petals or only sepals?

    a) Monoclamydeous 

    b) Diclamydeous 

    c) Triclamydeous 

    d) Polyclamydeous 

 

40. The arrangement of sepals and petals in a flower is referred to as:

    a) Phyllotaxy 

    b) Placentation 

    c) Inflorescence 

    d) Symmetry 

 

41. Which type of fruit is formed from a cluster of flowers, each with its own ovary?

    a) Aggregate fruit 

    b) Multiple fruit 

    c) Simple fruit 

    d) Composite fruit 

 

42. A flower that is symmetrical along one plane is described as:

    a) Bilateral 

    b) Radial 

    c) Asymmetrical 

    d) Complete 

 

43. Which structure in a flower is responsible for receiving pollen during pollination?

    a) Style 

    b) Ovary 

    c) Stigma 

    d) Anther 

 

44. The type of inflorescence in which all flowers are born on a single central axis is called:

    a) Corymb 

    b) Head 

    c) Raceme 

    d) Panicle 

 

45. Which of the following refers to the arrangement of flowers in an inflorescence?

    a) Symmetry 

    b) Phyllotaxy 

    c) Placentation 

    d) Inflorescence 

 

46. A flower with petals fused into a tube-like structure is described as:

    a) Actinomorphic 

    b) Zygomorphic 

    c) Gamopetalous 

    d) Polysepalous 

 

47. The part of the flower that contains the ovules is the:

    a) Style 

    b) Ovary 

    c) Stigma 

    d) Anther 

 

48. A flower with both stamens and carpels is:

    a) Imperfect 

    b) Complete 

    c) Incomplete 

    d) Perfect 

 

49. Which type of fruit is formed from the ovaries of multiple flowers?

    a) Aggregate fruit 

    b) Simple fruit 

    c) Multiple fruit 

    d) Composite fruit 

 

50. The floral part that is involved in reproduction by producing pollen is the:

    a) Pistil 

    b) Sepal 

    c) Petal 

    d) Stamen 

 

Answers:

 

1. d) Tendril 

2. c) Monocarpous 

3. c) Ovary 

4. b) Axile 

5. d) Corymb 

6. c) Bisexual 

7. a) Rose 

8. c) Bisexual 

9. b) Head 

10. b) Sepals 

11. b) Complete 

12. a) Superior 

13. d) The ovary is surrounded by other floral parts. 

14. d) Complete 

15. a) Peduncle 

16. b) Monoclamydeous 

17. b) Sepal 

18. c) Basal 

19. b) Incomplete 

20. c) Anther 

21. d) Pea 

22. c) Simple fruit 

23. c) Anther 

24. b) Petals 

25. d) Parietal 

26. c) Monocarpous 

27. c) Axile placentation 

28. d) Head 

29. a) Petal 

30. c) Ovary 

31. b) Complete 

32. b) Aggregate fruit 

33. a) Raceme 

34. c) Ovary 

35. a) Superior 

36. b) Monoecious 

37. b) Sepals 

38. a) Peduncle 

39. a) Monoclamydeous 

40. a) Phyllotaxy 

41. a) Aggregate fruit 

42. a) Bilateral 

43. c) Stigma 

44. b) Head 

45. d) Inflorescence 

46. c) Gamopetalous 

47. b) Ovary 

48. d) Perfect 

49. c) Multiple fruit 

50. d) Stamen 

 

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