MCQ ON PLANT GROWTH AND DEVELOPMENT class 11 for NEET | PLANT GROWTH AND DEVELOPMENT class 11 | MCQ PLANT GROWTH AND DEVELOPMENT with Answer | Check the below NCERT MCQ question for class 11 Biology chapter 15 based on the PLANT GROWTH AND DEVELOPMENT with Answers.
MCQ ON PLANT GROWTH AND DEVELOPMENT class 11
MCQ on PLANT GROWTH AND DEVELOPMENT class 11 Biology with answers were prepared based on the latest pattern.We have provided class 11 Biology MCQs questions on PLANT GROWTH AND DEVELOPMENT with Answers to help students understand the concept very well.
MCQ PLANT GROWTH AND DEVELOPMENT is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM 2022-23
Introduction:-
Have you ever thought about where and how the structures like roots, stems , leaves , flowers , fruits and seeds arise and too many in orderly sequence.You have also seen that trees continue to increase in height or girth over a period of time.All plants organs are made up of variety of tissue, an organ and the they perform.Development is the sum of two process growth and differentiation.
You will know some of the factors which govern and control these developmental processes.These factors are both intrinsic and extrinsic to the plant.
MCQ ON PLANT GROWTH AND DEVELOPMENT class 11 for NEET
1. Plant growth is generally
(a) determinate
(b) indeterminate
(c) both a and b
(d) none
Ans (a) indeterminate
2. The phase of growth of plants divided into
(a) merismatic phase
(b) elongation phase
(c) maturation phase
(d) all the above
Ans. (d) all the above
3. There are plants for which flowering is either quantitatively or qualitatively dependent on exposure to low temperature . This phenomenon is termed as
(a) photoperiodism
(b) vernalisation
(c) hydroponics
(d) cryogenics
Ans. (b) vernalisation
4. Which are / is not biennial plants ?
(a) sugarbeet
(b) cabbage
(c) carrots
(d) mango
Ans.(d) mango
5.The response of plants to period of day / night is termed as
(a) hydroponics
(b) photoperiodism
(c) vernalisation
(d) phytoregulator
Ans.(b) photoperiodism
6. There are many plants, however , there is no such correlation between exposure to light duration and induction of flowering response : such plants are called
(a) long day plants
(b) short day plants
(c) day – neutral plants
(d) all the above
Ans.(c) day – neutral plants
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7. The plant hormone inhibits seed germination.
(a) ethylene
(b) Abscisic acid
(c) gibberellin
(d) auxins
Ans.(b) Abscisic acid
8. The plant hormone were discovered as kinetin from the autoclaved herring sperm DNA.
(a) cytokinins
(b) auxin
(c) ethylene
(d) Abscisic acid
Ans.(a) cytokinins
9. Coconut milk containing phytohormone
(a) gibberellin
(b) auxin
(c) cytokinins
(d) ethylene
Ans. (c) cytokinins
10. The plant hormone promotes bolting internode elongation just period to flowering in beet , cabbage and many plants with rossete habit.
(a) cytokinins
(b) ethylene
(c) auxins
(d) gibberellins
Ans. (d) gibberellins
11. The plant hormone used to speed up the malting process in brewing industry.
(a) GA1
(b) GA2
(c) GA3
(d) all the above
Ans.(c) GA3
12. The plant hormone induce parthenocarpy in tomato.
(a) auxins
(b) ethylene
(c) gibberellins
(d) cytokinins
Ans.(a) auxins
13. The plant hormone wisely used as herbicides
(a) auxins
(b) cytokinins
(c) gibberellins
(d) Abscisic acid
Ans. (a) auxins
14. The plant hormone used to prepare weed – free lawns by gardeners.
(a) gibberellins
(b) cytokinins
(c) ethylene
(d) auxins
Ans.(d) auxins
15. Which controls xylem differentiation and helps in cell division.
(a) gibberellins
(b) auxins
(c) cytokinins
(d) ethylene
Ans. (b) auxins
16. The plant hormone used to initiate flowering and for synchronising fruit set in pineapples.
(a) gibberellins
(b) cytokinins
(c) ethylene
(d) auxins
Ans.(c) ethylene
17. The plant hormone called stress hormones.
(a) ABA
(b) auxins
(c) gibberellins
(d) ethylene
Ans.(a) ABA
18. The plant hormones which are antagonist in nature and function.
(a) ethylene and auxins
(b) ABA and auxins
(c) ABA and GAs
(d) ethylene and GAs
And.(c) ABA and GAs
19.The plant hormone used to inducing seed dormancy.
(a) GAs
(b) ABA
(c) ethylene
(d) auxins
Ans. (b) ABA
20. The plant hormone promotes nutrient mobilisation which help in the delay of leaf senescence.
(a) ethylene
(b) gibberellins
(c) auxins
(d) cytokinins
Ans.(d) cytokinins
21.The cells derived from root , apical and shoot – apical meristems and cambium differentiated and mature to perform specific functions.This act leading to maturation and is termed as
(a) dedifferentiation
(b) differentiation
(c) redifferentiation
(d) All the above
Ans. (b) differentiation.
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