TNTET Paper 2 - Plant structure functions pollination and life cycles. Online Test (MCQ Quiz)

1. What is the primary function of the root system in a plant?

A) Photosynthesis B) Absorption of water and minerals, and anchorage C) Production of flowers D) Transpiration

2. Which part of the plant is responsible for photosynthesis?

A) Root B) Stem C) Leaf D) Flower

3. The process by which plants release water vapor into the atmosphere is called:

A) Absorption B) Photosynthesis C) Transpiration D) Respiration

4. What is the main function of a stem?

A) To absorb sunlight B) To anchor the plant C) To support leaves, flowers, and fruits, and transport water and nutrients D) To produce seeds

5. Which part of the flower is typically brightly colored to attract pollinators?

A) Sepal B) Petal C) Pistil D) Stamen

6. The male reproductive part of a flower is called the:

A) Pistil B) Stigma C) Stamen D) Ovary

7. The female reproductive part of a flower is called the:

A) Stamen B) Anther C) Filament D) Pistil

8. What is the process of pollen transfer from the anther to the stigma called?

A) Fertilization B) Germination C) Pollination D) Transpiration

9. Which of the following is a common pollinating agent for plants?

A) Wind B) Water C) Insects D) All of the above

10. Self-pollination occurs when pollen is transferred from the anther to the stigma of:

A) A different flower on the same plant B) A flower on a different plant C) The same flower or another flower on the same plant D) A flower of a different species

11. Cross-pollination occurs when pollen is transferred from the anther of one plant to the stigma of:

A) The same flower B) Another flower on the same plant C) A flower on a different plant of the same species D) A flower of a different species

12. What is the fusion of male gamete with the female gamete called?

A) Pollination B) Germination C) Fertilization D) Seed dispersal

13. After fertilization, the ovary of a flower typically develops into a:

A) Seed B) Root C) Stem D) Fruit

14. The part of the flower that protects the bud before it opens is called a:

A) Petal B) Stamen C) Sepal D) Pistil

15. Which part of the stamen contains the pollen grains?

A) Filament B) Anther C) Style D) Stigma

16. The sticky tip of the pistil that receives pollen is called the:

A) Ovary B) Style C) Stigma D) Ovule

17. The stalk that supports the anther is called the:

A) Filament B) Style C) Petal D) Sepal

18. Which structure contains the female gametes (egg cells) in a flower?

A) Anther B) Pollen tube C) Ovule D) Stigma

19. The process by which a seed sprouts and begins to grow into a new plant is called:

A) Fertilization B) Pollination C) Germination D) Dispersal

20. What are the essential requirements for seed germination?

A) Sunlight and oxygen B) Water and suitable temperature C) Carbon dioxide and minerals D) Fertile soil and wind

21. The part of the seed that develops into the root system of the new plant is called the:

A) Plumule B) Radicle C) Cotyledon D) Seed coat

22. The part of the seed that develops into the shoot (stem and leaves) of the new plant is called the:

A) Radicle B) Cotyledon C) Plumule D) Endosperm

23. In many seeds, the stored food for the embryo is found in the:

A) Seed coat B) Radicle C) Plumule D) Cotyledons or Endosperm

24. The process of spreading seeds away from the parent plant is known as:

A) Germination B) Pollination C) Fertilization D) Seed dispersal

25. Which of the following is a method of seed dispersal?

A) Dispersal by wind B) Dispersal by animals C) Dispersal by water D) All of the above

26. Plants with brightly colored, fragrant flowers and sticky pollen are usually pollinated by:

A) Wind B) Water C) Insects D) Gravity

27. Grasses and many trees are typically pollinated by:

A) Birds B) Bats C) Wind D) Insects

28. What is the function of the cotyledon in a germinating seed?

A) To protect the embryo B) To provide nourishment to the embryo C) To anchor the seedling D) To attract pollinators

29. Which plant part is a modified stem that stores food?

A) Taproot B) Tuber C) Fibrous root D) Petiole

30. The arrangement of leaves on a stem is called:

A) Venation B) Phyllotaxy C) Stomata D) Cuticle

31. What is the primary role of stomata on a leaf?

A) To absorb sunlight B) To transport water C) To regulate gas exchange (CO2 intake, O2 release) and transpiration D) To store food

32. The waxy layer on the surface of a leaf that reduces water loss is called the:

A) Epidermis B) Mesophyll C) Cuticle D) Xylem

33. Which tissue in plants is responsible for transporting water and dissolved minerals from the roots to the rest of the plant?

A) Phloem B) Xylem C) Cambium D) Epidermis

34. Which tissue in plants is responsible for transporting sugars produced during photosynthesis from the leaves to other parts of the plant?

A) Xylem B) Phloem C) Stomata D) Root hairs

35. What is the term for the complete life cycle of a flowering plant, from seed to seed production?

A) Germination cycle B) Pollination cycle C) Plant life cycle D) Fertilization cycle

36. In the life cycle of a typical flowering plant, which stage follows fertilization?

A) Seed formation B) Germination C) Pollination D) Flowering

37. Which part of the flower contains the ovules which develop into seeds?

A) Anther B) Stigma C) Ovary D) Petal

38. What is the function of the endosperm in a seed?

A) To protect the embryo B) To attract pollinators C) To provide nourishment to the developing embryo D) To aid in seed dispersal

39. Plants that rely on water for pollination often have:

A) Small, inconspicuous flowers B) No petals or sepals C) Large, colorful petals D) Strong fragrances

40. A plant that completes its life cycle in two growing seasons is called a:

A) Annual B) Biennial C) Perennial D) Monocot

41. A plant that lives for many years, often producing flowers and seeds annually, is called a:

A) Annual B) Biennial C) Perennial D) Dicot

42. Which type of root system consists of a main, thick taproot with smaller lateral roots branching off?

A) Fibrous root system B) Adventitious root system C) Taproot system D) Aerial root system

43. Which type of root system has many thin, branching roots of similar size arising from the base of the stem?

A) Taproot system B) Fibrous root system C) Prop root system D) Pneumatophore

44. What is the primary function of petals in entomophilous (insect-pollinated) flowers?

A) To produce pollen B) To attract pollinators C) To protect the developing fruit D) To absorb sunlight for photosynthesis

45. The transfer of pollen from the anther to the stigma without the involvement of external agents like wind or insects is known as:

A) Cross-pollination B) Geitonogamy C) Xenogamy D) Autogamy

46. Geitonogamy is pollination between:

A) Different flowers on the same plant B) Flowers of different plants C) The same flower D) Flowers of different species

47. Xenogamy refers to pollination between:

A) Different flowers on the same plant B) The same flower C) Flowers of different plants of the same species D) Flowers of different species

48. The process where a plant produces seeds without fertilization is called:

A) Parthenocarpy B) Apomixis C) Self-incompatibility D) Double fertilization

49. Which part of the flower develops into a seed after fertilization?

A) Ovary B) Ovule C) Petal D) Stamen

50. The growth of a pollen tube from the pollen grain to the ovule is essential for:

A) Pollination B) Fertilization C) Seed dispersal D) Germination

Plant structure functions pollination and life cycles. - Online Test

Test Results