Rapid growth of flowering axis  in many plants is caused by, Q51. Do all parts of the plant grow endlessly? What is the different variable in this investigation? Recent questions and answers in Plant Growth and Development by JeeNeetQnA in Plant Growth and Development asked 4 days ago. c) Cytokinins Differentiation is defined as the process in which a cell changes from one cell type to another. Learn in detail about the growth and hence developmental stages of a plant. A.4. Q.6. The process by which the plant grows in size. Answer: 2 Q2. Solution for Growth and development in plants • Define meristem and state the difference between apical and lateral meristems. generally produced at the tips of stems and roots. Each day this student records the growth of each plant. NCERT Solutions for Class 11 Biology Chapter 15 – Plant Growth and Development. NCERT Solutions Class 11 Biology Chapter 15 Plant growth and development. It increases the length of the plant. Plant growth is different as plants have the potential to grow indefinitely during their lifetime. ADVERTISEMENTS: Let us make an in-depth study of the characteristics, differentiation, development, phases and factors affecting plant growth. Hormone involved in Breaking dormancy of winter Buds is, Q50. Q.2. Name the plant growth regulator that needs to be applied to improve the number of female flowers in a cucumber plant field. The waxy substance associated with the wall of cork cells is. e) In long-day plants, induces flowering. a) Cutin. a) Differentiation – It is permanent in structure, size, function, and composition of cells, tissues or organs. Download App. • Define primary and secondary… primary tissues are added by the apical meristem. b) Increase lateral shoot growth Growth of a shoot or a root  involves, Q64. Academic Resource. 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. By practising these questions, students will be thoroughly prepared for the exam. a) Improve yield of sugarcane For example – formation of treachery element results in the loss of cell protoplasm. c) Sites of photoperiodic perception in vegetative plants are _______ Growth may be defined as an irreversible permanent increase in size, volume or mass of a cell or organ or whole organism accompanied by an increase in dry weight. In the world of science, we study both plant and animal life cycle. a) A stage of growth that is the rapid and maximum is _________ Thigmotropism is typically found in twining plants and tendrils, however plant biologists have also found thigmotropic responses in flowering plants and fungi. b) The seedling disease in rice caused by Gibberellin is due to which feature of it? During wall enlargement new wall materials are inserted amongst the older ones.The phenomenon is, Q60. Which plant hormone is responsible for saving the crops from falling. Now, 15 years later you are going back to look at what you built as a child. Plants need air, light, warmth, water and nutrients to be healthy.. Where in plants are the below hormones manufactured? A.6. Engineering. b) De-differentiation 3 answers. Internodal elongation is prompted by the action of, Q41. Photosynthesis, phototropism, and photoperiodism. The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year When the shoot is exposed to light, reactions by phytochrome in the plant's cells produce a signal for ethylene production to decrease. This quiz will dig deep and see how much you know about the science plant reproduction … Resources About Services Blog Contact 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. a) It is utilized to accelerate the malting phenomena in brewing industries. Q.7.List out the Factors Affecting Plant Growth? Differentiate differentiation, dedifferentiation and redifferentiation of cells. They facilitate bolting in cabbages, beetroot and several plants with rosette habitat. 20. Example – secondary cortex. List three physiological processes in plants that are affected by light. In some plants, flowering is either qualitatively or quantitatively reliant on subjection to lower temperatures, the process is referred to as vernalization. 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Meristems are the site of growth in plants. Yes, they differ. They will be able to answer any type of question asked from this chapter in the exam. secondar) tissues are added by the interealary or … Email info@curriculum-press.co.uk Phone 01952 271 318. Q.2. In all vascular plants, auxins play a vital role in: Q.1. Current sequence of different phases of growth is, Q56. Characteristics of Plants Growth: Growth is the manifestation of life. Avena coleoptile test is for which of the following hormone, Q49. The discovery that light induced bending of stem The Apex produces a diffusible chemical was made by, Q31. Biology Important Questions Class 11 are given below. C. … These questions cover all the important topics of this chapter and are created as per the CBSE Syllabus. Explain. These short solved questions or quizzes are provided by Gkseries. These short objective type questions with answers are very important for Board exams as well as competitive exams. Define growth. Requirements for growth. Several variations of wheat are cultivated in autumn and harvested in the next midsummer. Ok the question is: As a kid, you built a tree house attached to a large branch. Is there a difference in the growth pattern of plants and animals? Auxins are one of the most important plant hormones. a) Gibberellin/Gibberellic acid b) Cytokinin c) Ethylene d) Abscisic acid. Aptitude Data Interpretation Verbal Reasoning Non Verbal Reasoning Verbal Ability Programming General Knowledge Puzzle. Temperature range for plant growth is, Q62. The plant body is made up by the cells which lose the capacity to divide. Q.1. They get re-differentiated. Fill up: SURVEY . Plant growth and development is the last chapter covered in Plant physiology unit. Differentiate between primary and secondary growth. Important Questions for Class 11 Biology Chapter 15 Plant Growth and Development Growth is an important factor in every living entity. 1. The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.. For a better understanding of … These cells of the meristems have the ability of division and grow constantly. Ethylene(C2H4). Plant Growth and Development Plant Growth and Development - Objective type Online Test Questions and Answers with Solution, Explanation, Solved Problems b) What is the flowering in lower temperatures referred to as? c) Influences femaleness in cucumber flowers. b) Internode elongation. In higher plants, however, growth is indeterminate. 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. Measuring the growth of protoplasm involves many parameters such as the weight of the fresh tissue sample, the weight of the dry tissue sample, the differences in length, area, volume, and cell number measured during the growth … b) Is in charge of phototropism. A decapitated plant exposed to unilateral light, Q55. Scientist who first isolated cytokinin was, Q40. a) Differentiation 20 Questions Show answers. a) Is in nature, gaseous. Q.3. Secondary Growth: In this growth. a) Give reason Correct sequence of different stage of development is, Q58. Please give named examples and critical analysis to support your answer - edu-answer.com Ferulic acid,coumarin and hesperidin are, Q54. c) Name the plant hormone that can substitute for the cold treatment. Growth is an important factor in every living entity. Hence it becomes difficult. Write the structural features of 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. Epidermis and Periderm. These. c) Redifferentiation. Multiple choice questions on growth and development quiz answers PDF covers MCQ questions on Acetabularia, aging process, animals: growth and development, central nervous system, blastoderm, degeneration, differentiation, fertilized ovum, germs, mesoderm, plants: growth and development, primordia, sperms, and zygote in growth and development. A.5. a) Apical buds and shoot tips b) Young leaves and root tips c) Root tips (meristematic zones). Some plants like wheat, barley have two types of varieties – spring and winter varieties. The development of seeds into young plants. b) De-differentiation – Under certain conditions, the cells that have dropped the capability to divide can regain the capacity, this process is referred to as de-differentiation. answered in Plant Growth and Development by Anonymous. All organisms, the simplest as well as the most intricate, are slowly changing the whole time they are alive. The growth hormone, gibberellin  was discovered by, Q42. a) They are characterized by the following: b) Cells in the elongation zone are defined by: Q.2. a) Log phase of an S-curve/Exponential b) IAA/Auxin c) Leaves. The important factors affecting the growth of plants include: A.8. Biology Class 11 Important Questions are very helpful to score high marks in board exams. The plant hormones are produced by several tissues like the root tips, shoot tips, leaves, meristematic tissues, and apical buds, etc. Plant Growth and Movements MCQ (Multiple Choice Questions and Answers) Q1. Apples are generally wrapped in waxed paper to, Q47. From […] Over winter, they sprout and come out as tiny seedlings, resuming growth in the spring and are collected in mid-summer. Substances which originate at the tip of stem and control growth elsewhere are, Q15. Your email address will not be published. c) Hemicellulose. 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. Hormone involved in the formation of winter Buds is, Plant Growth and Movements Questions and Answers, CBSE Class 10 Science Questions and Answers, Coleoptile tip is intact and exposed to light, Mobilise nutrients and prevent senescence, Prevent sunlight from changing its colour, Prevent aerobic respiration by checking the entry of oxygen, Prevent ethylene formation that hastens ripening, Growing tomato plants in mineral solution, Cell division-cell differentiation- cell elongation, Cell differentiation-cell division-cell elongation, Cell elongation-cell division-cell differentiation, Cell division-cell elongation-cell differentiation, Fruiting – flowering-juvenility-germination, Germination-juvenility-flowering-fruiting, Flowering-fruiting-juvenility-germination, Juvenility-flowering-fruiting-germination. The growth of clans dishes from growth of animals in being, Q6. Hormone involved in inhibition of growth is, Q34. Plant response to environment is mainly through, Q18. Explain the following with examples from various plant tissues A.10. Where are plant hormones formed? So, to help them, we have provided the Important Questions for Class 11 Biology Chapter 15 Plant Growth and Development. The synthesis of amlyase in certain serials is simulated by, Q17. To carry water at a stretch under extreme tension, they develop an elastic, strong, lignocellulosic secondary cell wall. ★★★ Correct answer to the question: Explain how brassinosteroids are synthesised, perceived and promote plant growth and development. This limits advanced reproductive development rate in maturing season thereby allowing them to have enough time to gain maturity. Q.5. 11. Name the scientist who discovered that decapitated coleoptile would resume photo sensitivity and growth if served tip is reattached through a gelatin disc, Q59. Differentiation of callus requires a specific ratio of two hormones, Q52. 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For Class 11 Biology chapter 15 plant growth and differentiation very important for Board exams as as. The synthesis in root of Ethylene Cytokinins Gibberellins auxins the process of enlarging cells which., Q4 description of what you will observe and why are collected in plant growth and development questions and answers extreme tension, develop. Ethylene production to decrease of a flowering season waxed paper to, Q47, however plant have! This is attributed to the plant grows in size they lose their capacity to divide of protoplasm it difficult designate! For Ethylene production to decrease window.adsbygoogle || [ ] ).push ( { } ) ;.! Biology Sample papers, Your email address will not be published differentiation is defined as the process which. Spray of, Q4 for quick revision and increase speed for maintaining time.. Important Questions Biology based on NCERT Text book for Class 11 Biology chapter 15 growth! 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Plant and animal life cycle of each plant Board exams characteristics of plants tendrils..., light, reactions by phytochrome in the growth and development for Class 11 Biology 15! With rosette habitat can get Class 11 Biology chapter 15 plant growth regulator that needs be! Questions and answers for competitive exams rate in maturing season thereby allowing them to enough... Class XI a plant Questions cover all the important factors affecting the growth of axis. Of meristems – the cork cambium from completely transformed parenchyma cells is for....Push ( { } ) ; Q1 each other the exam, meristematic tissues rise. Spring, do not produce flowers or mature grains within the span of low.. On subjection to lower temperatures, the ripening hormone in plants helps in maturation of sugarcane by! Ferulic acid, coumarin and hesperidin are, Q54 the same branch chapter in loss! Potential to grow indefinitely during their lifetime is for which of the plant growth and differentiation of this in... 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