Read and download free pdf of CBSE Class 11 Biology Plant Growth and Development Assignments. Get printable school Assignments for Class 11 Biology. Class 11 students should practise questions and answers given here for Chapter 15 Plant Growth And Development Biology in Class 11 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 11 Biology prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations
Assignment for Class 11 Biology Chapter 15 Plant Growth And Development
Class 11 Biology students should refer to the following printable assignment in Pdf for Chapter 15 Plant Growth And Development in Class 11. This test paper with questions and answers for Class 11 Biology will be very useful for exams and help you to score good marks
Chapter 15 Plant Growth And Development Class 11 Biology Assignment
Ques. A plant hormone used for inducing morphogenesis in plant tissue culture is
(a) cytokinins (b) ethylene
(c) abscisic acid (d) gibberellins.
Answer: A
Ques. Which combination of gases is suitable for fruit ripening?
(a) 80% CH4 and 20% CO2
(b) 80% CO2 and 20% O2
(c) 80% C2H4 and 20% CO2
(d) 80% CO2 and 20% CH2
Answer: C
Ques. Which one among the following chemicals is used for causing defoliation of forest trees?
(a) Malic hydrazide (b) 2, 4-D
(c) Amo-1618 (d) Phosphon D
Answer: B
Ques. Gibberellic acid induces flowering
(a) in short day plants under long day conditions
(b) in day-neutral plants under dark conditions
(c) in some gymnospermic plants only
(d) in long day plants under short day conditions.
Answer: D
Ques. The movement of auxin is largely
(a) centripetal (b) basipetal
(c) acropetal (d) both (a) and (c).
Answer: B
Ques. If the growing plant is decapitated, then
(a) its growth stops
(b) leaves become yellow and fall down
(c) axillary buds are inactivated
(d) axillary buds are activated.
Answer: D
Ques. Removal of apical bud results in
(a) formation of new apical bud
(b) elongation of main stem
(c) death of plant
(d) formation of lateral branching.
Answer: D
Ques. The regulator which retards ageing/senescence of plant parts is
(a) cytokinin (b) auxin
(c) gibberellin (d) abscisic acid.
Answer: A
Ques. The hormone produced during adverse environmental conditions is
(a) benzyl aminopurine
(b) bichlorophenoxy acetic acid
(c) ethylene
(d) abscisic acid.
Answer: D
Ques. Klinostat is employed in the study of
(a) osmosis
(b) growth movements
(c) photosynthesis
(d) respiration.
Answer: B
Ques. Which is produced during water stress that brings stomatal closure?
(a) Ethylene
(b) Abscisic acid
(c) Ferulic acid
(d) Coumarin
Answer: B
Ques. Bananas can be prevented from over-ripening by
(a) maintaining them at room temperature
(b) refrigeration
(c) dipping in ascorbic acid solution
(d) storing in a freezer.
Answer: C
Ques. Apical dominance is caused by
(a) abscisic acid in lateral bud
(b) cytokinin in leaf tip
(c) gibberellin in lateral buds
(d) auxin in shoot tip.
Answer: D
Ques. Cytokinins
(a) promote abscission
(b) influence water movement
(c) help retain chlorophyll
(d) inhibit protoplasmic streaming.
Answer: C
Ques. Which is employed for artificial ripening of banana fruits?
(a) Auxin (b) Coumarin
(c) Ethylene (d) Cytokinin
Answer: C
Ques. Abscisic acid causes
(a) stomatal closure (b) stem elongation
(c) leaf expansion (d) root elongation.
Answer: A
Ques. The hormone responsible for apical dominance is
(a) IAA (b) GA
(c) ABA (d) Florigen.
Answer: A
Ques. Hormone primarily connected with cell division is
(a) IAA (b) NAA
(c) cytokinin/zeatin (d) gibberellic acid.
Answer: C
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CBSE Class 11 Biology Chapter 15 Plant Growth And Development Assignment
We hope you liked the above assignment for Chapter 15 Plant Growth And Development which has been designed as per the latest syllabus for Class 11 Biology released by CBSE. Students of Class 11 should download and practice the above Assignments for Class 11 Biology regularly. We have provided all types of questions like MCQs, short answer questions, objective questions and long answer questions in the Class 11 Biology practice sheet in Pdf. All questions have been designed for Biology by looking into the pattern of problems asked in previous year examinations.
Assignment for Biology CBSE Class 11 Chapter 15 Plant Growth And Development
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Chapter 15 Plant Growth And Development Assignment Biology CBSE Class 11
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Chapter 15 Plant Growth And Development Assignment CBSE Class 11 Biology
Regular assignment practice helps to get a more comprehensive understanding of Chapter 15 Plant Growth And Development concepts. Assignments play a crucial role in understanding Chapter 15 Plant Growth And Development in CBSE Class 11. Students can download all the assignments of the same chapter in Class 11 Biology in Pdf format. You can print them or read them online on your computer or mobile.
CBSE Biology Class 11 Chapter 15 Plant Growth And Development Assignment
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