Plant Growth and Development MCQs and Answers investigate a portion of the variables which administer and control these formative cycles. These variables are both intrinsic (interior) and extrinsic (outside) to the plant. The various other subtopics in the chapter are Growth Differentiation, Dedifferentiation and Redifferentiation, Development, Plant Growth Regulators, Photoperiodism, Vernalisation and then some.
Plant Growth and Development NEET pdf Download
1. Which plant hormone helps in breaking the dormancy of plant?
- Auxin
- Gibberellin
- Cytokinin
- Ethylene
Answer: Gibberellin
2. Which hormone is formed in leaves and helps in the blooming of the flowers?
- Traumatic
- Auxin
- Florigens
- None of the above
Answer: Florigens
3. Which plant hormone is formed in injured cells by which the injury of plant is healed?
- Florigens
- Traumatic
- Abscisic Acid
- None of the above
Answer: Traumatic
4. Which of the following hormone help in the cell division and development in the presence of auxins?
- Ethylene
- Cytokinins
- Auxins
- Florigens
Answer: Cytokinins
5. Name the plant hormone which increases the activity of cambium in the wooden plants?
- Gibberellins
- Cytokinins
- Auxins
- Ethylene
Answer: Gibberellins
6. Growth regulators, which control plant growth and development are called___________
- Secondary metabolites
- Macro element
- Nonessential elements
- Phytohormone
Answer: Phytohormone
7. Growth in plants is mainly driven by turgor pressure.
- True
- False
Answer: True
8. Which of the following is NOT a plant hormone?
- Corticosteroid
- Brassinosteroid
- Polyamines
- Salicylic acid
Answer: Corticosteroid
9. Name the plant in which auxin was first discovered?
- Mustard
- Pea
- Oats
- Rice
Answer: Oats
10. Which of the following is NOT a naturally occurring auxin?
- Indole 3-acetic acid (IAA)
- Indole 3-butyric acid (IBA)
- Phenyl acetic acid (PAA)
- 38
Answer: 2,4-D
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