NMMS Class 7 – “Reproduction in Plants”

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NMMS Class 7 – “Reproduction in Plants”


1. Which part of a flower helps to attract insects for pollination?

  • Petals
  • Sepals
  • Anther
  • Ovary

2. Which part of the flower protects it when it is in bud stage?

  • Petals
  • Stigma
  • Anther
  • Sepals

3. What is the male reproductive organ of a flower?

  • Carpel
  • Stamen
  • Petal
  • Sepal

4. What is the female reproductive organ of a flower?

  • Stamen
  • Carpel
  • Anther
  • Petal

5. Which part of the carpel receives pollen grains?

  • Ovary
  • Stigma
  • Filament
  • Style

6. Which part of the carpel develops into fruit after fertilization?

  • Anther
  • Petal
  • Style
  • Ovary

7. Which part of the flower forms the seed?

  • Ovule
  • Ovary
  • Anther
  • Filament

8. Which part of a flower produces pollen grains?

  • Stigma
  • Anther
  • Ovary
  • Style

9. Which part connects anther and flower base?

  • Stigma
  • Ovary
  • Sepal
  • Filament

10. What is formed when pollen grain fuses with ovule?

  • Zygote
  • Seed
  • Fruit
  • Embryo

11. After fertilization, the ovary changes into a

  • Fruit
  • Seed
  • Leaf
  • Root

12. The ovule changes into

  • Seed
  • Fruit
  • Flower
  • Ovary

13. What helps to carry pollen grains from one flower to another?

  • Wind or insects
  • Root hairs
  • Stomata
  • Guard cells

14. In insect-pollinated flowers, petals are usually

  • Bright and colourful
  • Small and green
  • Dry and rough
  • Odourless

15. In wind-pollinated flowers, pollen grains are

  • Sticky
  • Large
  • Light and dry
  • Wet

16. In water-pollinated plants, pollen grains

  • Sink
  • Stick to insects
  • Float on water
  • Evaporate

17. What is double fertilization?

  • One male gamete and one female gamete
  • Two fusions during fertilization in flowers
  • Fusion of two ovules
  • Two flowers joining

18. What is the function of pollen tube?

  • Carries male gamete to ovule
  • Carries water
  • Transports seed
  • Forms fruit

19. What happens to petals after fertilization?

  • They wither and fall off
  • They grow into fruit
  • They become green
  • They turn into seeds

20. The diagram of a flower showing male and female parts represents

  • Unisexual flower
  • Sterile flower
  • Bisexual flower
  • Neutral flower

21. Which of these is an example of a unisexual flower?

  • Papaya
  • Hibiscus
  • Mustard
  • Lily

22. Which of these is an example of a bisexual flower?

  • Hibiscus
  • Papaya
  • Cucumber
  • Maize

23. Which part of the seed provides food for embryo?

  • Cotyledon
  • Plumule
  • Radicle
  • Seed coat

24. The outer covering of a seed is called

  • Cotyledon
  • Endosperm
  • Embryo
  • Seed coat

25. In germination, which part of the seed grows first?

  • Radicle
  • Plumule
  • Cotyledon
  • Leaf

26. The small shoot that comes out during germination is

  • Plumule
  • Radicle
  • Cotyledon
  • Root

27. What is required for seed germination?

  • Water, air, and warmth
  • Light, food, and sound
  • Soil only
  • Carbon dioxide

28. What happens if seeds are kept in refrigerator?

  • Germination slows or stops
  • It grows faster
  • It dies immediately
  • It turns yellow

29. What happens if seeds are boiled before sowing?

  • They do not germinate
  • They grow faster
  • They grow taller
  • They germinate twice

30. Which plant reproduces through spores?

  • Mango
  • Rose
  • Jasmine
  • Ferns

31. In Bryophyllum, new plants grow from

  • Leaf margins
  • Root tips
  • Stem tubers
  • Flower buds

32. In potato, new plants grow from

  • Eyes or buds on tuber
  • Roots
  • Leaves
  • Seeds

33. In onion, new plants grow from

  • Bulbs
  • Seeds
  • Roots
  • Cuttings

34. Which method of artificial propagation is used in rose?

  • Cutting
  • Layering
  • Grafting
  • Seed sowing

35. Which artificial method is used in jasmine?

  • Grafting
  • Layering
  • Cutting
  • Seed sowing

36. Which artificial method is used in mango?

  • Cutting
  • Layering
  • Budding
  • Grafting

37. Which artificial method is used in lemon?

  • Cutting
  • Grafting
  • Layering
  • Budding

38. The main advantage of vegetative propagation is

  • Plants are identical to parent
  • Takes longer time
  • Needs pollination
  • Requires two parents

39. Which plant reproduces naturally by runners?

  • Strawberry
  • Rose
  • Mango
  • Onion

40. Which plant reproduces by fragmentation?

  • Spirogyra
  • Rose
  • Bryophyllum
  • Mango

41. Which organism reproduces by budding?

  • Yeast
  • Ferns
  • Spirogyra
  • Bacteria

42. Which organism reproduces by binary fission?

  • Yeast
  • Bacteria
  • Fungi
  • Algae

43. Which part of the flower produces egg cells?

  • Ovary
  • Anther
  • Stigma
  • Filament

44. Which part of a seed develops into a new plant?

  • Embryo
  • Cotyledon
  • Seed coat
  • Fruit

45. The process of fusion of male and female gametes is

  • Fertilization
  • Pollination
  • Propagation
  • Germination

46. The transfer of pollen from anther to stigma is

  • Pollination
  • Fertilization
  • Propagation
  • Germination

47. Which of these is NOT a means of seed dispersal?

  • By wind
  • By animals
  • By water
  • By photosynthesis

48. Which seed is dispersed by wind?

  • Cotton
  • Coconut
  • Mango
  • Groundnut

49. Which seed is dispersed by water?

  • Pea
  • Apple
  • Rice
  • Coconut

50. Which seed is dispersed by animals?

  • Mango
  • Lotus
  • Rice
  • Cotton
Location: Mogalturu, Andhra Pradesh 534281, India

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