Read and download free pdf of CBSE Class 11 Biology Plant Growth And Development Worksheet Set C. Students and teachers of Class 11 Biology can get free printable Worksheets for Class 11 Biology Chapter 15 Plant Growth and Development in PDF format prepared as per the latest syllabus and examination pattern in your schools. Class 11 students should practice questions and answers given here for Biology in Class 11 which will help them to improve your knowledge of all important chapters and its topics. Students should also download free pdf of Class 11 Biology Worksheets prepared by school teachers as per the latest NCERT, CBSE, KVS books and syllabus issued this academic year and solve important problems with solutions on daily basis to get more score in school exams and tests
Worksheet for Class 11 Biology Chapter 15 Plant Growth and Development
Class 11 Biology students should refer to the following printable worksheet in Pdf for Chapter 15 Plant Growth and Development in Class 11. This test paper with questions and answers for Class 11 will be very useful for exams and help you to score good marks
Class 11 Biology Worksheet for Chapter 15 Plant Growth and Development
Plant Growth And Development MCQ Questions with Answers Class 11 Biology
Question. Which auxins are used in diluted form to produce parthenocarpic fruits?
(1) IAA and IBA
(2) 2, 4-D and IBA
(3) NAA and GA
(4) 2, 4-D and IAA
Answer (1)
Question. Which of the following is not a function of gibberellic acid?
(1) Bolting
(2) Delayed senescence
(3) Seed germination
(4) Ripening
Answer (4)
Question. Which of the following auxin is widely used as weedicide?
(1) IAA
(2) IBA
(3) 2, 4-D
(4) NAA
Answer (3)
Question. Phytohormones responsible for cell division in callus are ______ and ______.
(1) ABA and cytokinin
(2) Gibberellin and ethylene
(3) Auxin and cytokinin
(4) Ethylene and cytokinin
Answer (3)
Question. Apical dominance is stimulated by auxin whereas it is inhibited by
(1) Ethylene
(2) ABA
3) Gibberellic acid
(4) Cytokinin
Answer (4)
Question. Which of the following is incorrect about ethylene?
(1) Promotes root hair formation
(2) It is natural and derivative of carotenoids
(3) It increases the number of female flowers
(4) It causes synchronisation of flowering and fruit set in pineapples
Answer (2)
Question. Which of the following phytohormone is a derivative of carotenoids?
(1) Auxin
(2) ABA
(3) Ethylene
(4) Cytokinin
Answer (2)
Question. Dormancy of seeds is broken by ethylene whereas it is induced by
(1) Abscisic acid
(2) Auxin
(3) Cytokinin
(4) Gibberellic acid
Answer (1)
Question. The plant hormone which closes the stomata in stressful conditions is
(1) Cytokinin
(2) GA (3) Auxin
(4) ABA
Answer (4)
Question. Which phytohormone is synthesised in ripened fruits?
(1) ABA
(2) Auxin
(3) Cytokinin
(4) Ethylene
Answer (4)
Question. Both ethylene and ABA are responsible for
(1) Promoting the abscission of leaves and fruits
(2) Inducing dormancy of seeds
(3) Stimulation of apical dominance
(4) Ripening
Answer (1)
Question. Select a correct match
(1) GA3– Early seed production in conifers.
(2) Cytokinin – Synchronise fruit set in pineapples.
(3) Auxin – Overcomes senescence.
(4) Ethylene – Seed maturation and development
Answer (1)
Question. _________ is a period when growth and development is temporarily stopped.
(1) Dormancy
(2) Abscission
(3) Senescence
(4) Vernalisation
Answer (1)
Question. Florigen results in conversion of
(1) Reproductive bud → Vegetative bud
(2) Shoot apex → Flowering bud
(3) Root apex → Reproductive bud
(4) Vegetative bud → Lateral shoot
Answer (2)
Question. Which of the following is an example of short day plant?
(1) Tobacco
(2) Sugarbeet
(3) Wheat
(4) Radish
Answer (1)
Question. Cucumber and tomato are the examples of
(1) Day neutral plants
(2) Short day plants
(3) Long day plants
(4) Long short day plants
Answer (1)
Question. Which type of plants can blossom throughout the year?
(1) Long day plants
(2) Short-long day plants
(3) Short-day plants
(4) Day neutral plants
Answer (4)
Question. The site of preception of light in plants for flowering is
(1) Stems
(2) Roots
(3) Leaves
(4) Fruits
Answer (3)
Question. Some plants like sugarbeet and cabbage required low temperature for flowering. This phenomenon is called
(1) Photoperiodism
(2) Parthenocarpy
(3) Vernalisation
(4) Abscission
Answer (3)
Question. Most of the winter flowering plants belong to
(1) Short long day plants
(2) Long day plants
(3) Short day plants
(4) Day neutral plants
Answer (3)
Question. Which of the following is incorrect about vernalisation?
(1) It prevents precocious reproductive development
(2) It is observed in winter variety of wheat
(3) Flowering is stimulated by low temperature
(4) It is the resting stage of seeds
Answer (4)
Question. During vernalisation, the stimulus of low temperature is perceived by
(1) Stem apex
(2) Leaves
(3) Roots
(4) Bark
Answer (1)
Question. The hormonal substance which migrates from leaves to shoot apices to induce flowering is
(1) Dormin
(2) Zeatin
(3) Kinetin
(4) Florigen
Answer (4)
More Question
Q1. How is growth accomplished? Give characteristics of plant growth.
Q2. In what terms in growth measured?
Q3. What are 3 phases of plant growth? How are they exhibited at the region of roots?
Q4 (a) What is growth rate? What is arithmetic & geometric growth?
(b) How is linear growth represented graphically? Give the equation of linear were mathematically.
(c) Draw sigmoid growth curve & explain its different phases.
Q5. What are the essential conditions required for plant growth?
Q6. What is plant development & which factors control it?
Q7. Define plant growth regulators (PGRs) & give examples with chemical composition.
Q8 (a) What is the site of production of auxins?
(b) What is the role of Charles Darwin & F.M. Went in the discovery of auxins?
(c) Name the phytohormone isolated for first time from human urine.
(d) Name 2 natural & 2 synthetic auxins.
(e) In most plants terminal bud suppresses devt of lateral buds. Name the phenomenon & phytohormone which promotes it.
Q9. Name the weedicide used for dicot weeds.
Q10 (a) Which phytohormone caused foolish seedling diseases ? Name the fingers from which it was isolated.
(b) Give physiological effect of GA. (c) Give applications / uses of GA.
Q11 (a) Who gave the name ‘Kinetin’.
(b) Which phytohormone was isolated from corn kernel & coconut milk?
(c) Name the phytohormone which increases lateral branching.
(d) Why is ABA called stress hormone?
Q12. How is ABA useful to plants?
Q13. Name the gaseous phytohormone.
Q14. What does an overripe apple release which affects all other apples in the basket.
Q15. What would be expected to happen if: - (a) GA3 is applied to rice seedlings. (b)You forget to add cytokinin to culture medium.
Q16. What is photoperiodism? Explain different categories of plants on basis of photoperiodism giving one example of each.
Q17. What is vernalisation? Give its significance.
Q18. Define – Differentiation, dedifferentiation & Redifferentiation.
Q19. Describe the major disordered of human digestive system.
Q20. How is our gut lining protected from its own secretions of proteases?
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CBSE Class 11 Biology Chapter 15 Plant Growth and Development Worksheet
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Worksheet for Biology CBSE Class 11 Chapter 15 Plant Growth and Development
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Chapter 15 Plant Growth and Development worksheet Biology CBSE Class 11
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Chapter 15 Plant Growth and Development CBSE Class 11 Biology Worksheet
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Worksheet for CBSE Biology Class 11 Chapter 15 Plant Growth and Development
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