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MCQs

Total Questions : 81 | Page 3 of 9 pages
Question 21. Name the term given to the movement of water against gravitational force, from root to the aerial parts of the plant.
  1.    Ascent of sap
  2.    Root pressure
  3.    Radial movement
  4.    Field capapcity
 Discuss Question
Answer: Option A. -> Ascent of sap
Answer: (a).Ascent of sap
Question 22. Who proposed the idea of essential mineral nutrients of the plant?
  1.    Leonhart Fuchs
  2.    Aristotle
  3.    Arnon and Stout
  4.    Carl Linnaeus
 Discuss Question
Answer: Option C. -> Arnon and Stout
Answer: (c).Arnon and Stout
Question 23. Name the mineral element which is required by a plant in a great amount?
  1.    Calcium
  2.    Cobalt
  3.    Phosphorus
  4.    Nitrogen
 Discuss Question
Answer: Option D. -> Nitrogen
Answer: (d).Nitrogen
Question 24. Which of the following is a mineral nutrient?
  1.    Carbon
  2.    Nitrogen
  3.    Hydrogen
  4.    Oxygen
 Discuss Question
Answer: Option B. -> Nitrogen
Answer: (b).Nitrogen
Question 25. Which of the following element is needed by plants in a very small quantity?
  1.    Phosphorus
  2.    Carbon
  3.    Sodium
  4.    Magnesium
 Discuss Question
Answer: Option C. -> Sodium
Answer: (c).Sodium
Question 26. Name the technique which involves the growth of a plant by suspending their roots in the air?
  1.    Diffusion
  2.    Osmosis
  3.    Hydroponics
  4.    Aeroponics
 Discuss Question
Answer: Option D. -> Aeroponics
Answer: (d).Aeroponics
Question 27. Name the site of Gibberellins synthesis
  1.    Endosperm
  2.    Coleoptile tip
  3.    Young leaves
  4.    Scetullum
 Discuss Question
Answer: Option A. -> Endosperm
Answer: (a).Endosperm
Question 28. Gibberellin that is synthesized in the shoot transported to different parts of the plant by which medium?
  1.    Xylem
  2.    Sieve tube
  3.    Aleurone layer
  4.    Phloem
 Discuss Question
Answer: Option D. -> Phloem
Answer: (d).Phloem
Question 29. Which of the following plant hormone is responsible for seed germination?
  1.    Auxin
  2.    Gibberellin
  3.    Ethylene
  4.    Abscisic acid
 Discuss Question
Answer: Option B. -> Gibberellin
Answer: (b).Gibberellin
Question 30. What is bolting?
  1.    Internode elongation
  2.    Rooting
  3.    Shooting
  4.    Shoot apical meristem
 Discuss Question
Answer: Option A. -> Internode elongation
Answer: (a).Internode elongation

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