Plant Growth and Development MCQ For NEET with Answers:
Candidates who wish to prepare for the NCERT board exam and for the NEET exam can prepare better using our MCQ Questions for Class 11 Biology Chapter 15 Plant Growth and Development with Answers. From here candidates can download the Plant growth and development NEET questions in Pdf format. These will help aspirants to be familiar with an online examination. Along with that, due to the regular practice of these MCQ questions, candidates will get to know their strengths and weak topics in the Plant growth and development Chapter.
Plant Growth and Development NEET Questions with Answer:
1. Auxanometer is meant for measuring_______
(1) Respiratory activity
(2) Photosynthetic activity
(3) Growth activity
(4) Osmotic pressure
Answer: 3
Read: Neural Control and Coordination MCQs
2. Auxin is mainly produced by_______
(1) Apical root meristem
(2) Root cambium
(3) Apical shoot meristem
(4) Phloem in shoot tip
Answer: 3
Read: Morphology of Flowering Plants MCQs
3. The type of growth, in which only one daughter cell among the two (produced by the division of meristem cell) retain the ability to divide, shows which of the following growth curves ?
(1) Linear curve
(2) Sigmoid curve
(3) J-shape curve
(4) Bell shape curve
Answer: 1
Read: Excretory Products and their Elimination MCQs
4. Fruit and leaf drop at early stages can be prevented by the application of________
(1) Ethylene
(2) Auxins
(3) Gibberellic acid
(4) Cytokinins
Answer: 2
Read: Breathing and Exchange of Gases MCQs
5. Phytochrome is a________
(1) Lipoprotein
(2) Chromoprotein
(3) Flavoprotein
(4) Glycoprotein
Answer: 2
Read: Digestion and Absorption MCQs
6. Which of the following is not correct for ethylene?
(1) Promotes horizontal growth in seedlings
(2) Synchronize fruit set in pineapple
(3) Not help to increase the absorption surface of the plant
(4) Break seed and bud dormancy
Answer: 3
7. Which among the following is not related to ABA?
(1) Induces shoot growth
(2) Stress hormone
(3) Induces seed dormancy
(4) Acts as a general plant growth inhibitor and inhibitor of plant metabolism
Answer: 1
8. Which of the following is not true for ABA?
(1) seed dormancy and maturation
(2) induce morphogenesis
(3) stress hormone
(4) antagonist to GA3
Answer: 2
9. Which of the following is an example of plasticity in plants?
(1) Continuous addition of new cells in the plant body.
(2) Cells arising out of the same meristem have different structures at maturity.
(3) Difference in the shape of leaves due to phases of life or environment.
(4) Determinate growth in the some plant organs.
Answer: 3
10. In plants growth is________
(1) Restricted to certain regions or structure
(2) Irreversible
(3) Change in size
(4) All the above
Answer: 4
11. Growth is primarily affected by two climatic factors which are ?
(1) Light and temperature
(2) Temperature and relative humidity
(3) Light and wind
(4) Rainfall and temperature
Answer: 1
12. Which of the following events in plants is not affected by interaction of more than one PGR ?
(1) Apical dominance
(2) Abscission and senescence
(3) Dormancy in seeds/buds
(4) Bolting process
Answer: 4
13. Which of the following plant growth regulators, is derivative of accessory photosynthetic pigments?
(1) Abscisic acid
(2) Gibberellic acid
(3) Indole-3-acetic acid
(4) Ethylene
Answer: 1
14. Which of the following applications of auxins is widely used for plant propagation ?
(1) Selective killing of weeds to prepare weed-free lawns
(2) Initiation of rooting in stem cuttings
(3) Promotion of flowering in pineapple
(4) Induction of parthenocarpy
Answer: 2
15. In a growing plant, the first phase during the process of growth is_______
(1) Cell division
(2) Cell enlargement
(3) Cell differentiation
(4) Cell maturation
Answer: 1
16. The natural plant hormones were first isolated from _________
(1) Cotton fruits, spinach leaves, and rice plant
(2) Avena coleoptiles, spinach leaves, and fungus Gibberella
(3) Human urine and corn germ oil
(4) Human urine and rice plant
Answer: 3
17. How does pruning help in making the hedge dense
(1) The apical shoot grows faster after pruning
(2) It releases wound hormones
(3) It induces the differentiation of new shoots from the rootstock
(4) It frees axillary buds from apical dominance
Answer: 4
18. Which of the following sets is not of natural plant hormones?
(1) 2-4-D, BAP, NAA
(2) Zeatin, NAA, IAA
(3) Zeatin, IBA, GA3
(4) Zeatin, ABA, IAA
Answer: 1
19.Which of the following is a regulatory pigment?
(1) Xanthophyll
(2) Chlorophyll
(3) Carotene
(4) Phytochrome
Answer: 4
20. Which of the following is not the function of Auxin ?
(1) Control xylem differentiation and induce cell division
(2) 2-4-D is used as an herbicide for dicot weeds
(3) Promote fruit ripening
(4) Induce parthenocarpy
Answer: 3
21. Which of the following set contains natural hormones?
(1) 2,4-D, IBA, Gibberellin
(2) Cytokinin, 2-4-D, NAA
(3) IAA, Zeatin, ABA
(4) Ethylene, NAA, ABA
Answer: 3
22. Which of the following set denotes cytokine?
(1) Zeatin, Kinetin, BAP
(2) IAA, NAA, Zeatin
(3) Kinetin, Gibberellin, IAA
(4) BAP, IBA, Gibberellin
Answer: 1
23. Auxin was first time extracted from_________
(1) Human urine
(2) Plant extract
(3) Plant callus extract
(4) Coconut milk
Answer: 1
24. Which set among the following represent auxins?
(1) IBA, IAA, NAA
(2) IAA, BAP, NAA
(3) 2,4-D, GA3, IAA
(4) 2,4-D, GA3, NAA
Answer: 1
25. Which of the following is not correct for ethylene?
(1) Responsible for senescence and absorption of flowers.
(2) It increases the rate of respiration during fruit ripening
(3) Internode elongation in deep water rice seedlings
(4) Inhibit the formation of root hairs.
Answer: 4
26. Which one of the following is a set of natural growth regulators ?
(1) NAA, IAA, IBA
(2) 2,4-D, IBA, BAP
(3) 2,4-D, ABA, IBA
(4) IAA, ABA, Zeatin
Answer: 4
27. In the sigmoid growth curve, the exponential phase slows down leading to a stationary phase due to__________
(1) Toxic effect of some plant hormones
(2) Genetic nature
(3) Limited nutrient supply
(4) Absence of differentiation.
Answer: 3
28. Which of the following plant growth regulators is responsible for ‘respiratory climactic’ ?
(1) Auxin
(2) Ethylene
(3) ABA
(4) Cytokinin
Answer: 2
29. Plant growth regulators, which are involved in growth-inhibiting activities, also play an important role in_______
(1) Pattern formation in plants
(2) Tropic growth in plants
(3) Cell division and cell enlargement
(4) Plant responses to wounds and stresses
Answer: 4
30. Parthenocarpic tomato fruits can be produced by?
(1) raising the plants from vernalized seeds
(2) treating the plants with phenylmercuric acetate
(3) removing androecium of flowers before pollen grains are released
(4) treating the plants with low concentrations of gibberellic acid and auxins
Answer: 4
31. An enzyme that can stimulate germination of barley seeds is__________
(1) Protease
(2) Invertase
(3) a&amylase
(4) Lipase
Answer: 3
32. Which one of the following pairs, is not correctly matched ?
(1) IAA - Cell wall elongation
(2) Abscisic acid – Stomatal closure
(3) Gibberellic acid – Leaf fall
(4) Cytokinin – Cell division
Answer: 3
33. Which of the following is a characteristic feature of meristematic cells –
(1) Cells are rich in protoplasm
(2) Cell walls are primary in nature
(3) Presence of large conspicuous nuclei
(4) All of the above
Answer: 4
34. Who isolated Auxin from the tip of coleoptiles of oat seedlings?
(1) Charles Darwin
(2) Kogl
(3) F.W. Went
(4) Skoog
Answer: 3
35. 'Bakane disease of rice seedlings' was caused by Gibberella fujikuroi' Which is__________
(1) a Bacteria
(2) an Algae
(3) a Protista
(4) a Fungus
Answer: 4
36. The wavelength of light absorbed Pr form of phytochrome is_______
(1) 620 nm
(2) 640 nm
(3) 680 nm
(4) 720 nm
Answer: 2
37. "Foolish seeding" disease of rice led to the discovery of_______
(1) IAA
(2) GA
(3) ABA
(4) 2, 4-D
Answer: 2
Also Read:
- Chapter 8: Cell The Unit of Life MCQs
- Chapter 9: Biomolecules MCQs
- Chapter 10: Cell Cycle and Cell Division MCQs
- Chapter 11: Transport in Plants MCQs
- Chapter 12: Mineral Nutrition MCQs