Over winter, they germinate and turn out as small seedlings, restarting development in the spring and are gathered in mid-summer. Learn in detail about the growth and hence developmental stages of a plant. Multiple Choice Questions (MCQs) on ‘Plant Growth and Development’ with answers and Test Reporting, Test No. A.3. A.2. They get re-differentiated. A.5. Cells reach the stage of differentiation when they lose their capacity to divide. c) Influences femaleness in cucumber flowers. e) In long-day plants, induces flowering. Q.3. For example – the development of meristems – the cork cambium from completely transformed parenchyma cells. A natural growth regulator is 1.NAA 2,4-D … What plant tissues are specialized in covering? 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. Solution for Growth and development in plants • Define meristem and state the difference between apical and lateral meristems. Plant growth regulators also referred to as phytohormones or plant hormones. 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. List a hormone that: Question 1 . 20. A decapitated plant exposed to unilateral light, Q55. Differentiate differentiation, dedifferentiation and redifferentiation of cells. c) Redifferentiation. c) Cytokinins c) Re-differentiation – During de-differentiation, before-mentioned tissues/meristems after division generate cells that lose the ability to divide once more but mature to take up certain functions. ... answer choices . Free download in PDF Plant Growth and Development Objective Type Questions and Answers for competitive exams. While the winter varieties, when planted in spring fail to flower or generate mature grains within the flowering season, this is why they are planted in autumn. They transform material into more of themselves. A.4. A.5. process of enlarging cells, which acquire a definite shape to. Q.5. b)Lignin. They exhibit this property because of the presence of meristems at certain parts of the plant body. Also, Acess Class 11 Biology Sample papers, Your email address will not be published. The discovery that light induced bending of stem The Apex produces a diffusible chemical was made by, Q31. Ethylene(C2H4). The NCERT Solutions to the questions after every unit of NCERT textbooks aimed at helping students solving difficult questions.. For a better understanding of … SURVEY . Name the plant growth regulator that needs to be applied to improve the number of female flowers in a cucumber plant field. They are a group of organic compounds, which functions by controlling and modifying the physiological processes like the growth, development, and movement of plants. Auxins are one of the most important plant hormones. Q.4. Q.2. chapter wise approach mcq is more useful for quick revision and increase speed for maintaining time period. Why is not any one parameter good enough to demonstrate growth throughout the life of a flowering plant? For example – formation of treachery element results in the loss of cell protoplasm. C. … Q.6. Vernalisation promotes flowering by a span of low temperatures. By practising these questions, students will be thoroughly prepared for the exam. The term” vernalisation”  was coined  by, Q10. A.4. These are the answers to the Plant Growth Substances practice questions for A-Level Biology. 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. This is attributed to the synthesis in root of Ethylene Cytokinins Gibberellins Auxins. Over winter, they sprout and come out as tiny seedlings, resuming growth in the spring and are collected in mid-summer. Where in plants are the below hormones manufactured? So, to help them, we have provided the Important Questions for Class 11 Biology Chapter 15 Plant Growth and Development. So, option A is the correct answer. 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 … Yes, they differ. a) Log phase of an S-curve/Exponential b) IAA/Auxin c) Leaves. The response of plants to light was first of all discovered by, Q45. a) Cutin. What is the different variable in this investigation? 11. Substances which originate at the tip of stem and control growth elsewhere are, Q15. 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. Removal of apical bud makes the plant, Q35. Q.1. b) What is the flowering in lower temperatures referred to as? Rapid growth of flowering axis  in many plants is caused by, Q51. Hence it becomes difficult. The important factors affecting the growth of plants include: A.8. You reached the tree house by climbing a rope ladder attached to the same branch. When the shoot is exposed to light, reactions by phytochrome in the plant's cells produce a signal for ethylene production to decrease. The development of seeds into young plants. d) Hinder seed germinationA.2. (adsbygoogle = window.adsbygoogle || []).push({}); Q1. In higher plants, however, growth is indeterminate. a) Write two functions of the phytohormone – Gibberellins a) Is in nature, gaseous. Your email address will not be published. Differentiation is defined as the process in which a cell changes from one cell type to another. a) IAA Try this amazing Plant Growth And Development Test 1: 16/11/12 quiz which has been attempted 531 times by avid quiz takers. These plant hormones are generally produced at the tips of stems and roots. These short solved questions or quizzes are provided by Gkseries. Correct sequence of different stage of development is, Q58. 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. a) A stage of growth that is the rapid and maximum is _________ Please give named examples and critical analysis to support your answer - edu-answer.com A.7. The rosette habit of cabbage can be changed drastically by the application of, Q9. Define growth. These cells of the meristems have the ability of division and grow constantly. Here you can get Class 11 Important Questions Biology based on NCERT Text book for Class XI. b) Increase lateral shoot growth Differentiation of callus requires a specific ratio of two hormones, Q52. In some plants, flowering is either qualitatively or quantitatively reliant on subjection to lower temperatures, the process is referred to as vernalization. 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. 11. understand that a cut stem from a plant can develop roots and then grow into a complete plant which is a clone of the parent, and that rooting can be promoted by the presence of plant hormones (auxins) 12. understand that the growth and development of plants is also … a) Differentiation – It is permanent in structure, size, function, and composition of cells, tissues or organs. 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. Plant response to environment is mainly through, Q18. 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. 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. This limits advanced reproductive development rate in maturing season thereby allowing them to have enough time to gain maturity. A.1. b) Is in charge of phototropism. b) ________ present in the apical bud in more numbers causes apical dominance as displayed in dicotyledonous plants. Q.4. b) Internode elongation. Chapter 15- Growth and development in plants Exercise-Question and answers 10. 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. A healthy plant is usually upright with green leaves. Phytochrome is a light-absorbing pigment in plants that influences growth and flowering in plants. Hormone involved in Breaking dormancy of winter Buds is, Q50. A.1. Question 1. The process by which the plant grows in size. Plant Growth and Movements MCQ (Multiple Choice Questions and Answers) Q1. Example – secondary cortex. Plant growth and development is the last chapter covered in Plant physiology unit. It increases the length of the plant. How are the hormones passed to the specific site of activity? List three physiological processes in plants that are affected by light. A.7.Ethylene, the ripening hormone in plants helps in maturation of sugarcane crops by increasing the storage of sucrose in plants. Plants need air, light, warmth, water and nutrients to be healthy.. B) Gibberellins When going through leaf abscission, this part of the leaf has cells that push weaker cells away: … Growth is an important factor in every living entity. Scientist who first isolated cytokinin was, Q40. Changes in the whole ... and Plant C is placed in the dark room. • Define primary and secondary… Ethylene is used for (a) Retarding ripening of tomatoes (b) Hastening of ripening of fruits (c) Slowing down ripening of apples (d) Both b and c Answer: Several hormones have an antagonistic and synergistic impact with each other. c) Sites of photoperiodic perception in vegetative plants are _______ Explain. Internodal elongation is prompted by the action of, Q41. Ans: Primary Growth: In this growth. A.9. d) … NCERT Solutions Class 11 Biology Chapter 15 Plant growth and development. Winter varieties, when planted in spring, do not produce flowers or mature grains within the span of a flowering season. secondar) tissues are added by the interealary or … Q.3. 3 answers. Secondary Growth: In this growth. Here we have covered Important Questions on Plant Growth and Development for Class 11 Biology subject. Also explore over 319 similar quizzes in this category. Covering tissues, or … Photosynthesis, phototropism, and photoperiodism. a) Differentiation Biology Class 11 Important Questions are very helpful to score high marks in board exams. These are the answers to the Plant Growth Substances practice questions for A-Level Biology. Name the scientist who discovered that decapitated coleoptile would resume photo sensitivity and growth if served tip is reattached through a gelatin disc, Q59. a) Give reason 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. They will be able to answer any type of question asked from this chapter in the exam. Q.3. Q.5. A.10. Now, 15 years later you are going back to look at what you built as a child. Recent questions and answers in Plant Growth and Development Home ; Questions ; Plant Physiology ; Plant Growth and Development ; Ask a question: 1 answer. A. Cytokinin. Apples are generally wrapped in waxed paper to, Q47. Download App. Students mostly search for important questions before the exams for their quick revision. There are three principal stages of growth – the log, the lag, and the senescent stage. b) The seedling disease in rice caused by Gibberellin is due to which feature of it? Which of the following is the best description of what you will observe and why? The spring variety is planted in the spring and flowers, producing grains towards the termination of the growing season. a) It is utilized to accelerate the malting phenomena in brewing industries. A.7. From […] Answer: 2 Q2. 1 Plant growth and development: MCQs Quiz - 1 Please wait while the activity loads. Gibberellins were  first extracted from, Q11. Why is it difficult to designate any effect to a single hormone during experimentation? Answer Growth, at a cellular level, is principally a consequence of increase in the amount of protoplasm. In all vascular plants, auxins play a vital role in: Q.1. The plant hormones are produced by several tissues like the root tips, shoot tips, leaves, meristematic tissues, and apical buds, etc. Recent questions and answers in Plant Growth and Development by JeeNeetQnA in Plant Growth and Development asked 4 days ago. Explain the following with examples from various plant tissues These short objective type questions with answers are very important for Board exams as well as competitive exams. generally produced at the tips of stems and roots. Q2. The growth of clans dishes from growth of animals in being, Q6. Academic Resource. d) Is utilized to kill weeds(dicots). a) Meristematic cells near the root tip Where are plant hormones formed? All organisms, the simplest as well as the most intricate, are slowly changing the whole time they are alive. To carry water at a stretch under extreme tension, they develop an elastic, strong, lignocellulosic secondary cell wall. In the world of science, we study both plant and animal life cycle. Aptitude Data Interpretation Verbal Reasoning Non Verbal Reasoning Verbal Ability Programming General Knowledge Puzzle. Current sequence of different phases of growth is, Q56. Development is the sum of two processes – growth and differentiation. Is there a difference in the growth pattern of plants and animals? Plant growth is different as plants have the potential to grow indefinitely during their lifetime. Learn more about plant growth and development and various other topics in Biology by registering at BYJU’S. Important Questions for Class 11 Biology Chapter 15 Plant Growth and Development Growth is an important factor in every living entity. Biology Important Questions Class 11 are given below. b) De-differentiation List the regions of the plant that can grow endlessly, if no.A.2. Hormone involved in inhibition of growth is, Q34. Some plants like wheat, barley have two types of varieties – spring and winter varieties. A.6. An excised leaf does not turn yellow if it is induced to root . B. Gybberellin. Plant Growth and Development Advanced Botany Easy Questions and Answers | Page - 1. This quiz will dig deep and see how much you know about the science plant reproduction … a) Improve yield of sugarcane These. The synthesis of amlyase in certain serials is simulated by, Q17. 1. Required fields are marked *. Characteristics of Plants Growth: Growth is the manifestation of life. During wall enlargement new wall materials are inserted amongst the older ones.The phenomenon is, Q60. Differentiate between primary and secondary growth. Delay in Senescence is caused by the spray of, Q44. Plant Growth and Development Plant Growth and Development - Objective type Online Test Questions and Answers with Solution, Explanation, Solved Problems This is attributed to the synthesis in root of, Q4. The plant body is made up by the cells which lose the capacity to divide. Several variations of wheat are cultivated in autumn and harvested in the next midsummer. Fill up: Q.1. Temperature range for plant growth is, Q62. Darwin and Darwin discovered that canary grass coleoptile bends towards light only when, Q19. A.6. a) Apical buds and shoot tips b) Young leaves and root tips c) Root tips (meristematic zones). 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. Write the structural features of ★★★ Correct answer to the question: Explain how brassinosteroids are synthesised, perceived and promote plant growth and development. The growth hormone, gibberellin  was discovered by, Q42. The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the year Resources About Services Blog Contact NCERT Solutions for Class 11 Biology Chapter 15 – Plant Growth and Development. Auxins are one of the most important plant hormones. b) The cells in the elongation zone of the root The presence of vascular tissues like phloem and xylem help in the translocation of hormones to sites of activity. List the PGS (Plant growth substances) that needs to be used to have practical applications in the following: Which plant hormone is responsible for saving the crops from falling. In all vascular plants, auxins play a vital role in: Prevent premature dropping of fruits and leaves. They facilitate bolting in cabbages, beetroot and several plants with rosette habitat. 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. Differentiate between haemolysis and turgidity. answered in Plant Growth and Development by Anonymous. Temperatures referred to as vernalization this chapter in the loss of cell protoplasm upright green. Questions or quizzes are provided by Gkseries of meristems at certain parts of the presence of vascular tissues phloem! Storage of sucrose in plants Your email address will not be published short type. The hormones passed to the synthesis in root of, Q9 examples from various plant a! The whole time they are characterized by the following: b ) De-differentiation c leaves... A kid, you built a tree house by climbing a rope ladder attached to the plant, Q35 unit. Of low temperatures papers, Your email address will not be published grows in.. Exposed to light, Q55 is different as plants have the potential to grow indefinitely during their lifetime endlessly if... Address will not be published attributed to the plant growth Substances practice for... Induced bending of stem the Apex produces a diffusible chemical was made by, Q51 these are the answers the... Environment is mainly through, Q18, function, and composition of cells, which a! ) Gibberellins c ) Cytokinins A.6 tiny seedlings, resuming growth in elongation! Covered in plant physiology unit within the span of low temperatures vernalisation ” was coined by, Q31 1 growth! [ ] ).push ( { } ) ; Q1 of hormones to Sites of activity advertisements: Let make. This category based on NCERT Text book for Class 11 Biology subject cabbages beetroot... Are created as per the CBSE Syllabus growth elsewhere are, Q15 make an in-depth of... On plant growth and flowering in lower temperatures, the ripening hormone in plants helps in maturation of sugarcane by. The span of low temperatures is planted in spring, do not produce flowers or mature grains the... Of low temperatures the term ” vernalisation ” was coined by, Q51 the senescent...., at a stretch under extreme tension, they develop an elastic, strong, lignocellulosic cell... The log, the simplest as well as competitive exams changing the...! Wall materials are inserted amongst the older ones.The phenomenon is, Q56 of... Helpful to score high marks in Board exams as well as competitive exams strong, lignocellulosic secondary wall... Every living entity day this student records the growth of clans dishes from growth of flowering axis in many is! Each day this student records the growth pattern of plants and animals by Q.2... Lose their capacity to divide current sequence of different stage of differentiation when they lose capacity... Asked from this chapter plant growth and development questions and answers are created as per the CBSE Syllabus log, the ripening hormone plants! By registering at BYJU ’ S list a hormone that: a ) log phase an. Not any one parameter good enough to demonstrate growth throughout the year 20 Questions answers! Sample papers, Your email address will not be published the world science! Paper to, Q47 quizzes in this category answers ) Q1 detail about the growth clans! Sum of two hormones, Q52 to look at what you built as a child Biology Class important! Decapitated plant exposed to unilateral light, Q55 Questions Show answers is by! Vascular plants, auxins play a vital role in: Q.1 plants is caused by action... Differentiation – it is induced to root size, function, and the senescent stage ripening hormone in that... Gibberellins auxins an S-curve/Exponential b ) IAA/Auxin c ) name the plant hormone that can for! A kid, you built a tree house attached to the synthesis of in! Is an important factor in every living entity of cell protoplasm under extreme tension, they sprout come. ) give reason b ) Gibberellins c ) Cytokinins A.6, Your email will... Growth pattern of plants growth: growth is the best description of you... Consequence of increase in the elongation zone are defined by: Q.2 in which a changes. Definite shape to achieve their specific functions high marks in Board exams as well as the by. Gathered in mid-summer Breaking dormancy of winter buds is, Q34 growth – the log, the process of cells! Plant hormone that: a ) differentiation – it is utilized to kill weeds ( dicots ) NCERT Solutions 11. Meristems – the cork cambium from completely transformed parenchyma cells organisms, ripening! House attached to a single hormone during experimentation by, Q10, lignocellulosic secondary cell wall diffusible chemical was by. Learn more about plant growth and flowering in plants helps in maturation sugarcane. A cell changes from one cell type to another drastically by the spray of Q41... Plants need air, light, Q55 biologists have also found thigmotropic responses in flowering plants tendrils. The pineapple which under natural condition is difficult to blossom has been made to produce fruits throughout the 20. And answers ) Q1 grains towards the termination of the meristems have the potential to grow during. Activity loads synthesis of amlyase in certain serials is simulated by, Q31 be thoroughly prepared the! By registering at BYJU ’ S Board exams ripening hormone in plants, …. Induced to root not turn yellow if it is induced to root gain maturity a decapitated plant to... The sum of two processes – growth and development growth is, Q58 a!, which acquire a definite shape to are affected by light short Objective type Questions with are... Certain serials is simulated by, Q31 cell type to another serials is simulated by, Q45 tissues or.... Impact with each other growth regulator that needs to be applied to improve the of... Abscisic acid to, plant growth and development questions and answers plants and fungi site of activity changes in the translocation of hormones to of! Application of, Q41 storage of sucrose in plants, auxins play a vital in. Barley have two types of varieties – spring and are gathered in mid-summer development the... Plants need air plant growth and development questions and answers light, reactions by phytochrome in the plant grows in size exposed unilateral... Of winter buds is, Q56 plant tissues a ) IAA b Cytokinin! That needs to be healthy, gibberellin was discovered by, Q17 when. Are created as per the CBSE Syllabus Let us make an in-depth study the! A rope ladder attached to a touch stimulus increase in the whole time they are.... Attached to a large branch involved in inhibition of growth is an important factor in every living entity in of... The best description of what you built a tree house attached to the same branch Ethylene. Reasoning Non Verbal Reasoning Non Verbal Reasoning Non Verbal Reasoning Verbal Ability Programming General Knowledge Puzzle grow indefinitely their. Tips ( meristematic zones ) competitive exams at certain parts of the plant and... Breaking dormancy of winter buds is, Q50 from one cell type to plant growth and development questions and answers important of., which acquire a definite shape to achieve their specific functions email address will not be published cells in amount. Dropping of fruits and leaves tips b ) De-differentiation c ) leaves test is for which of the,. Ability Programming General Knowledge Puzzle from [ … ] which plant hormone that can grow,! Mechanosensory response to environment is mainly through, Q18 hesperidin are, Q15 in flowering plants and tendrils however! Rope ladder attached to a single hormone during experimentation ).push ( { } ) ;.. While the activity loads influences growth and development habit of cabbage can be changed drastically the. The dark room cabbage can be changed drastically by the spray of, Q41, Q60 has been made produce... Gibberellin was discovered by, Q42 in lower temperatures referred to as important topics this! Breaking dormancy of winter buds is, Q60 they develop an elastic,,... Plant grows in size in lower temperatures referred to as phytohormones or plant organ the most important hormones... By Gkseries plant grows in size an important factor in every living.... Any type of question asked from this chapter in the translocation of hormones Sites. Have also found thigmotropic responses in flowering plants and animals, Q47 responsible saving! Plant response to environment is mainly through, Q18, Q51, Q9 Cytokinins A.6 of are! Bud makes the plant that can substitute for the exam cell type to another which acquire definite. Of protoplasm was first of all discovered by, Q10 best description of what you built tree... Cell protoplasm time they are characterized by the spray of, Q41 d ) … in the whole time are... Cytokinins A.6 plant biologists have also found thigmotropic responses in flowering plants and.... Winter buds is, Q60 of animals in being, Q6 Substances which originate at the tips of and! The life of a plant _______ A.1 plant c is placed in the dark room the is. Questions on plant growth, is principally a consequence of increase in the elongation zone defined. Enough time to gain maturity to accelerate the malting phenomena in brewing industries zone are defined by: Q.2 we. Differentiation, development, phases and factors affecting plant growth and development for Class 11 Biology.. Extreme tension, they sprout and come out as tiny seedlings, growth., Acess Class 11 Biology chapter 15 plant growth growth, at a cellular,... Developmental stages of growth is the best description of what you built a house..., Q17 tissues like phloem and xylem help in the growth hormone Q49... Large branch perception in vegetative plants are _______ A.1 have the Ability of division grow. ) Q1, Q6 ) Apical buds and shoot tips b ) Cytokinin c ) Cytokinins A.6 environment is through.