A natural growth regulator is 1.NAA 2,4-D … Plant response to environment is mainly through, Q18. A.7. Q.4. c) The basis for the sprouting of potato tuber a) It is utilized to accelerate the malting phenomena in brewing industries. A.6. ... answer choices . Q.3. Avena coleoptile test is for which of the following hormone, Q49. c) Sites of photoperiodic perception in vegetative plants are _______ Plant Growth and Development Advanced Botany Easy Questions and Answers | Page - 1. (adsbygoogle = window.adsbygoogle || []).push({}); Q1. Gibberellins were  first extracted from, Q11. For example – formation of treachery element results in the loss of cell protoplasm. generally produced at the tips of stems and roots. a) Log phase of an S-curve/Exponential b) IAA/Auxin c) Leaves. The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year Q.5. Covering tissues, or … A.3. Now, 15 years later you are going back to look at what you built as a child. During wall enlargement new wall materials are inserted amongst the older ones.The phenomenon is, Q60. To carry water at a stretch under extreme tension, they develop an elastic, strong, lignocellulosic secondary cell wall. An excised leaf does not turn yellow if it is induced to root . Ethylene(C2H4). Please give named examples and critical analysis to support your answer - edu-answer.com A.5. a) They are characterized by the following: b) Cells in the elongation zone are defined by: Q.2. a) A stage of growth that is the rapid and maximum is _________ In some plants, flowering is either qualitatively or quantitatively reliant on subjection to lower temperatures, the process is referred to as vernalization. Which plant hormone is responsible for saving the crops from falling. Development is the sum of two processes – growth and differentiation. Plant Growth and Movements MCQ (Multiple Choice Questions and Answers) Q1. Name the scientist who discovered that decapitated coleoptile would resume photo sensitivity and growth if served tip is reattached through a gelatin disc, Q59. C. … B. Gybberellin. These. Darwin and Darwin discovered that canary grass coleoptile bends towards light only when, Q19. PLANT GROWTH & DEVELOPMENT Q BANK Question and answer based on strictly latest NCERT based pattern, and previous year NEET (AIPMT) question. process of enlarging cells, which acquire a definite shape to. Enlargement is defined as the process in which the size of the cells, tissues and organs increases by the formation of protoplasm, absorption of water, developing vacuoles, and addition of cell walls to make it thicker and permanent. The important factors affecting the growth of plants include: Differentiation is defined as the process in which a cell changes from one cell type to another. In organs of plants there is a variation in rate of growth i,t is first slow, then accelerated up to maximum and slows down to stand still the period of rigorous growth is known as, Q38. B) Gibberellins Q2. Q.5. b) ________ present in the apical bud in more numbers causes apical dominance as displayed in dicotyledonous plants. Q.2. When going through leaf abscission, this part of the leaf has cells that push weaker cells away: … Email info@curriculum-press.co.uk Phone 01952 271 318. Is there a difference in the growth pattern of plants and animals? They get re-differentiated. Growth is an important factor in every living entity. Current sequence of different phases of growth is, Q56. Temperature range for plant growth is, Q62. They exhibit this property because of the presence of meristems at certain parts of the plant body. a) If planted in spring, winter varieties do not flower or generate mature grains in a span of the flowering season, hence they are cultivated in autumn. SURVEY . So, to help them, we have provided the Important Questions for Class 11 Biology Chapter 15 Plant Growth and Development. DOWNLOAD PLANT GROWTH & DEVELOPMENT … Epidermis and Periderm. primary tissues are added by the apical meristem. A decapitated plant exposed to unilateral light, Q55. Over winter, they germinate and turn out as small seedlings, restarting development in the spring and are gathered in mid-summer. Yes, they differ. By practising these questions, students will be thoroughly prepared for the exam. answered in Plant Growth and Development by Anonymous. a) Gibberellin/Gibberellic acid b) Cytokinin c) Ethylene d) Abscisic acid. Internodal elongation is prompted by the action of, Q41. NCERT Solutions Class 11 Biology Chapter 15 Plant growth and development. Rapid growth of flowering axis  in many plants is caused by, Q51. Here on AglaSem Schools, you can access to NCERT Book Solutions in free pdf for Biology for Class 11 so that you can refer them as and when required. a) Is in nature, gaseous. The plant body is made up by the cells which lose the capacity to divide. Your email address will not be published. Answer Growth, at a cellular level, is principally a consequence of increase in the amount of protoplasm. These questions cover all the important topics of this chapter and are created as per the CBSE Syllabus. These are the answers to the Plant Growth Substances practice questions for A-Level Biology. These plant hormones are generally produced at the tips of stems and roots. b) Increase lateral shoot growth It is an irreversible and ever-increasing process which can be expressed in any these parameters – area, length, size, volume, cell number, etc and requires the involvement of increased protoplasmic material. Growth of a shoot or a root  involves, Q64. b) The seedling disease in rice caused by Gibberellin is due to which feature of it? ★★★ Correct answer to the question: Explain how brassinosteroids are synthesised, perceived and promote plant growth and development. A.1. Resources About Services Blog Contact It increases the length of the plant. A.1. a) Give reason The important factors affecting the growth of plants include: A.8. e) In long-day plants, induces flowering. a) Apical buds and shoot tips b) Young leaves and root tips c) Root tips (meristematic zones). Apples are generally wrapped in waxed paper to, Q47. Hormone involved in inhibition of growth is, Q34. Meristems are the site of growth in plants. Plant growth regulators also referred to as phytohormones or plant hormones. These are the answers to the Plant Growth Substances practice questions for A-Level Biology. Changes in the whole ... and Plant C is placed in the dark room. b) The cells in the elongation zone of the root b)Lignin. There are three principal stages of growth – the log, the lag, and the senescent stage. Kerala Plus One Botany Chapter Wise Questions and Answers Chapter 11 Plant Growth and Development Plus One Botany Plant Growth and Development One Mark Questions and Answers. Important Questions for Class 11 Biology Chapter 15 Plant Growth and Development Growth is an important factor in every living entity. Write the structural features of a) Differentiation – It is permanent in structure, size, function, and composition of cells, tissues or organs. b) De-differentiation Question 1 . The growth form, where cells are constantly added to the body of the plant through the action of meristems is referred to as the open form of growth. c) Hemicellulose. Secondary Growth: In this growth. Maturation is defined as the process of enlarging cells, which acquire a definite shape to achieve their specific functions. c) Influences femaleness in cucumber flowers. They facilitate bolting in cabbages, beetroot and several plants with rosette habitat. The plant hormones are produced by several tissues like the root tips, shoot tips, leaves, meristematic tissues, and apical buds, etc. CBSE Previous Year Question Papers Class 10, CBSE Previous Year Question Papers Class 12, NCERT Solutions Class 11 Business Studies, NCERT Solutions Class 12 Business Studies, NCERT Solutions Class 12 Accountancy Part 1, NCERT Solutions Class 12 Accountancy Part 2, NCERT Solutions For Class 6 Social Science, NCERT Solutions for Class 7 Social Science, NCERT Solutions for Class 8 Social Science, NCERT Solutions For Class 9 Social Science, NCERT Solutions For Class 9 Maths Chapter 1, NCERT Solutions For Class 9 Maths Chapter 2, NCERT Solutions For Class 9 Maths Chapter 3, NCERT Solutions For Class 9 Maths Chapter 4, NCERT Solutions For Class 9 Maths Chapter 5, NCERT Solutions For Class 9 Maths Chapter 6, NCERT Solutions For Class 9 Maths Chapter 7, NCERT Solutions For Class 9 Maths Chapter 8, NCERT Solutions For Class 9 Maths Chapter 9, NCERT Solutions For Class 9 Maths Chapter 10, NCERT Solutions For Class 9 Maths Chapter 11, NCERT Solutions For Class 9 Maths Chapter 12, NCERT Solutions For Class 9 Maths Chapter 13, NCERT Solutions For Class 9 Maths Chapter 14, NCERT Solutions For Class 9 Maths Chapter 15, NCERT Solutions for Class 9 Science Chapter 1, NCERT Solutions for Class 9 Science Chapter 2, NCERT Solutions for Class 9 Science Chapter 3, NCERT Solutions for Class 9 Science Chapter 4, NCERT Solutions for Class 9 Science Chapter 5, NCERT Solutions for Class 9 Science Chapter 6, NCERT Solutions for Class 9 Science Chapter 7, NCERT Solutions for Class 9 Science Chapter 8, NCERT Solutions for Class 9 Science Chapter 9, NCERT Solutions for Class 9 Science Chapter 10, NCERT Solutions for Class 9 Science Chapter 12, NCERT Solutions for Class 9 Science Chapter 11, NCERT Solutions for Class 9 Science Chapter 13, NCERT Solutions for Class 9 Science Chapter 14, NCERT Solutions for Class 9 Science Chapter 15, NCERT Solutions for Class 10 Social Science, NCERT Solutions for Class 10 Maths Chapter 1, NCERT Solutions for Class 10 Maths Chapter 2, NCERT Solutions for Class 10 Maths Chapter 3, NCERT Solutions for Class 10 Maths Chapter 4, NCERT Solutions for Class 10 Maths Chapter 5, NCERT Solutions for Class 10 Maths Chapter 6, NCERT Solutions for Class 10 Maths Chapter 7, NCERT Solutions for Class 10 Maths Chapter 8, NCERT Solutions for Class 10 Maths Chapter 9, NCERT Solutions for Class 10 Maths Chapter 10, NCERT Solutions for Class 10 Maths Chapter 11, NCERT Solutions for Class 10 Maths Chapter 12, NCERT Solutions for Class 10 Maths Chapter 13, NCERT Solutions for Class 10 Maths Chapter 14, NCERT Solutions for Class 10 Maths Chapter 15, NCERT Solutions for Class 10 Science Chapter 1, NCERT Solutions for Class 10 Science Chapter 2, NCERT Solutions for Class 10 Science Chapter 3, NCERT Solutions for Class 10 Science Chapter 4, NCERT Solutions for Class 10 Science Chapter 5, NCERT Solutions for Class 10 Science Chapter 6, NCERT Solutions for Class 10 Science Chapter 7, NCERT Solutions for Class 10 Science Chapter 8, NCERT Solutions for Class 10 Science Chapter 9, NCERT Solutions for Class 10 Science Chapter 10, NCERT Solutions for Class 10 Science Chapter 11, NCERT Solutions for Class 10 Science Chapter 12, NCERT Solutions for Class 10 Science Chapter 13, NCERT Solutions for Class 10 Science Chapter 14, NCERT Solutions for Class 10 Science Chapter 15, NCERT Solutions for Class 10 Science Chapter 16, Plants : Differentiation And Development Process, Parts of The Digestive System and Their Functions, CBSE Previous Year Question Papers Class 10 Science, CBSE Previous Year Question Papers Class 12 Physics, CBSE Previous Year Question Papers Class 12 Chemistry, CBSE Previous Year Question Papers Class 12 Biology, ICSE Previous Year Question Papers Class 10 Physics, ICSE Previous Year Question Papers Class 10 Chemistry, ICSE Previous Year Question Papers Class 10 Maths, ISC Previous Year Question Papers Class 12 Physics, ISC Previous Year Question Papers Class 12 Chemistry, ISC Previous Year Question Papers Class 12 Biology, The cell wall is cellulosic and thin – basic in nature. 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