Botany — MCQs

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1. Which pigment is responsible for the green color of plants?





2. The process by which green plants prepare their food is called:





3. Which part of the plant conducts water from roots to leaves?





4. The study of algae is called:





5. Which plant tissue is responsible for transporting food?





6. The process of loss of water through stomata is called:





7. Which gas is released during photosynthesis?





8. The functional unit of heredity in plants is:





9. Which part of the plant is modified into a tuber in potato?





10. Which is the reproductive organ of the plant?





11. Which plant hormone is responsible for cell elongation?





12. Nitrogen fixation in leguminous plants is carried out by:





13. Which plant tissue provides mechanical support?





14. The outer protective layer of a plant is called:





15. Photosynthesis occurs in which cell organelle?





16. Which of the following is a non-flowering plant?





17. Stomata are mainly present in:





18. Which is the male reproductive part of a flower?





19. The female reproductive organ of a flower is:





20. Which part of the seed develops into the root?





21. Which plant hormone is known as the “stress hormone”?





22. The process of double fertilization is found in:





23. Which part of the plant absorbs water and minerals?





24. The study of fungi is called:





25. Bryophytes are commonly known as:





26. The seed of monocots has:





27. Plants that complete their life cycle in one season are called:





28. Which pigment absorbs red and blue light during photosynthesis?





29. Which is the largest plant family?





30. Which tissue is responsible for the secondary growth of plants?





31. Which part of the flower develops into fruit?





32. Which plant hormone is known as the “ripening hormone”?





33. The main photosynthetic tissue in plants is:





34. Which is a parasitic plant?





35. The process of conversion of starch into sugar is known as:





36. Which of the following plants is a gymnosperm?





37. The outer covering of a seed is called:





38. Which gas is essential for photosynthesis?





39. The swollen base of a carpel is called:





40. Which plant stores food in its roots?





41. The study of mosses is called:





42. Which type of pollination occurs within the same flower?





43. The process of transfer of pollen grains to stigma is called:





44. The edible part of an apple is:





45. Which of the following plants reproduces through spores?





46. The movement of water molecules from high to low concentration through a semi-permeable membrane is:





47. Which part of the leaf helps in gas exchange?





48. The largest tree in the world is:





49. The plant tissue that makes up wood is:





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