Plant Growth And Development Class 11 NEET PYQ
The students who are targeting for NEET exam should prepare for all the important chapters of NEET syllabus to secure good marks in NEET 2022. Candidates planning to appear in the medical exam must have knowledge about the weightage of chapters. Biology section carries the maximum weightage.
Plant Growth And Development is the 15th chapter categorized under the unit ' Plant Physiology'. This is good topic, good quality of questions can be asked from this topic. According to the NEET chapter wise weightage Plant Growth And Development contributes to around 1.67% of the total number of questions asked in the last years. On average we can expect 1-2 questions from this particular chapter.
Here you will find all previous year Plant Growth And Development Class 11 NEET Questions. Solving previous years Plant Growth And Development Class 11 NEET Questions will be beneficial for you. Firstly you get an idea of what type of questions are asked in previous year.
Every year around many of questions of biology are repeated as it is without even changing single word. These Plant Growth And Development Class 11 NEET questions will definitely guide you in what direction you need extra push.
Plant Growth And Development Class 11 Questions And Answers
AIPMT 2006
1. 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
Solution : Correct option is 4
2. 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
Solution : Correct option is 4
3. An enzyme that can stimulate germination of barley seeds is\
(1) Protease
(2) Invertase
(3) a&amylase
(4) Lipase
Solution : Correct option is 3
AIPMT 2007
4. 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
Solution : Correct option is 3
5. The wavelength of light absorbed Pr form of phytochrome is :
(1) 620 nm
(2) 640 nm
(3) 680 nm
(4) 720 nm
Solution : Correct option is 2
6. "Foolish seeding" disease of rice led to the discovery of :
(1) IAA
(2) GA
(3) ABA
(4) 2, 4-D
Solution : Correct option is 2
AIPMT 2008
7. Senescence as an active developmental cellular process in the growth and functioning of a flowering plant, is indicated in :
(1) Annual plants
(2) Floral parts
(3) Vessels and tracheid differentiation
(4) Leaf abscission
Solution : Correct option is 4
8. Importance of day length in flowering of plants was first shown in:
(1) Cotton
(2) Petunina
(3) Lemna
(4) Tobacco
Solution : Correct option is 4
AIPMT 2009
9. One of the synthetic auxin is :
(1) IAA
(2) GA
(3) IBA
(4) NAA
Solution : Correct option is 4
10. Which one of the following acids is a derivative of carotenoids ?
(1) Indole–3–acetic acid
(2) Gibberellic acid
(3) Abscisic acid
(4) Indole butyric acid
Solution : Correct option is 3
11. The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is :
(1) Differentiating
(2) Maturing
(3) Elongating
(4) Widening
Solution : Correct option is 2
AIPMT-Pre 2010
12. Phototropic curvature is the result of uneven distribution of :
(1) Gibberellin
(2) Phytochrome
(3) Cytokinins
(4) Auxin
Solution : Correct option is 4
13. Photoperiodism was first characterised in :
(1) Tobacco
(2) Potato
(3) Tomato
(4) Cotton
Solution : Correct option is 1
AIPMT-Mains 2010
14. Root development is promoted by :
(1) Auxin
(2) Gibberellin
(3) Ethylene
(4) Abscisic acid
Solution : Correct option is 1
AIPMT-Mains 2012
15. Which one of the following generally acts as an antagonist to gibberellins ?
(1) ABA
(2) IAA
(3) Zeatin
(4) Ethylene
Solution : Correct option is 1
16. Vernalisation stimulates flowering in :
(1) Carrot
(2) Ginger
(3) Zamikand
(4) Turmeric
Solution : Correct option is 1
17. Through their effect on plant growth regulators, what do the temperature and light control in the plants?
(1) Closure of stomata
(2) Fruit elongation
(3) Apical dominance
(4) Flowering
Solution : Correct option is 4
AIPMT 2014
18. Dr. F. Went noted that if coleoptile tips were
removed and placed on agar for one hour, the agar would produce a bending when placed on one side of freshly-cut coleoptile stumps. Of what significance is this experiment ?
(1) It made possible the isolation and exact
identification of auxin.
(2) It is the basis for quantitative determination of small amounts of growth-promoting substances.
(3) It supports the hypothesis that IAA is auxin.
(4) It demonstrated polar movement of auxins.
Solution : Correct option is 2
19. A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them?
(1) Mutated
(2) Embolised
(3) Etiolated
(4) Defoliated
Solution : Correct option is 3
20. Which one of the following growth regulators is known as stress hormone ?
(1) Abscissic acid
(2) Ethylene
(3) GA3
(4) Indole acetic acid
Solution : Correct option is 1
AIPMT 2015
21. Typical growth curve in plants is :
(1) Linear
(2) Stair-steps shaped
(3) Parabolic
(4) Sigmoid
Solution : Correct option is 4
22. What causes a green plant exposed to the light on only one side, to bend toward the source of light as it grows ?
(1) Green plants seek light because they are phototropic
(2) Light stimulates plant cells on the lighted side to grow faster
(3) Auxin accumulates on the shaded side, stimulating greater cell elongation there.
(4) Green plants need light to perform photosynthesis
Solution : Correct option is 3
Re-AIPMT 2015
23. Auxin can be bioassayed by :
(1) Lettuce hypocotyl elongation
(2) Avena coleoptile curvature
(3) Hydroponics
(4) Potometer
Solution : Correct option is 2
NEET-I 2016
24. The Avena curvature is used for bioassay of :
(1) ABA
(2) GA3
(3) IAA
(4) Ethylene
Solution : Correct option is 3
NEET-II 2016
25. You are given a tissue with its potential for differentiation in an artificial culture. Which of the following pairs of hormones would you add to the medium to secure shoots as well as roots ?
(1) Auxin and abscisic acid
(2) Gibberellin and abscisic acid
(3) IAA and gibberellin
(4) Auxin and cytokinin
Solution : Correct option is 4
26. Phytochrome is a :
(1) Lipoprotein
(2) Chromoprotein
(3) Flavoprotein
(4) Glycoprotein
Solution : Correct option is 2
NEET(UG) 2017
27. Fruit and leaf drop at early stages can be prevented by the application of:
(1) Ethylene
(2) Auxins
(3) Gibberellic acid
(4) Cytokinins
Solution : Correct option is 2
NEET(UG) 2019
28. What is the site of perception of photoperiod necessary for induction of flowering in plants ?
(1) Lateral buds
(2) Pulvinus
(3) Shoot apex
(4) Leaves
Solution : Correct option is 4
29. It takes very long time for pineapple plants to produce flowers. Which combination of hormones can be applied to artificially induce flowering in pineapple plants throughout the year to increase yield?
(1) Auxin and Ethylene
(2) Gibberellin and Cytokinin
(3) Gibberellin and Abscisic acid
(4) Cytokinin and Abscisic acid
Solution : Correct option is 1
NEET(UG) 2019 (Odisha)
30. Removal of shoot tips is a very useful technique to boost the production of tea-leaves. This is because:
(1) Gibberellins prevent bolting and are inactivated
(2) Auxins prevent leaf drop at early stages
(3) Effect of auxins is removed and growth of lateral buds is enhanced.
(4) Gibberellins delay senescence of leaves.
Solution : Correct option is 3
31. In order to increase the yield of sugarcane crop, which of the following plant growth regulators should be sprayed?
(1) Ethylene
(2) Auxins
(3) Gibberellins
(4) Cytokinins
Solution : Correct option is 3
In this article we have provided you important previous year Plant Growth And Development Class 11 NEET Questions. Solve the above all previous year Plant Growth And Development Class 11 NEET Questions.
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