Page 1 :
Plant Growth and Development, , 1. Which set of plant parts tend to sh, ow, (a) Leaves and stem limited growth over a Period of time?, , (c) Flowers, leaves and fruits [ , tem, root and flower, 2, Development in plants refer to : Sarees at oR, , 'a) Growth oni, (a) ly (b) Differentiation only, , (c) Growth and differentiation ' ;, (d) Differentiation and, 3. All cells in higher plants are descendents Day iene:, , (a) Zygote (b) Endosperm, , (c) Integument (d) Nucellus, 4, Growth occurs In plants when :, , (a) Anabolism > Catabolism (b) Anabolism < Metabolism, , (c) Metabolism > Catabolism (d) Catabolism > Anabolism, 5. Expansion of leaf is :, , (a) Not an example of growth (b) An example of unlimited growth, : (c) An example of unlimited differentiation __ (d) An example of limited growth, , (/Growth in plants is :, (a) Always indeterminate (b) Generally indeterminate, (c) Always restricted (d) Closed type, , 7. Usually descendents of meristematic cells :, (a) Have capacity of division and differentiation, , (b) Lack capacity of division and differentiation, , (c) Lack capacity of division but show differentiation, , (d) Have capacity of division but lack differentiation, 8. Incorrect about plant growth Is :, , (a) Open type (b) Indeterminate, , (c) Due to meristems (d) None of these, 9. Indeterminate growth in plants Is due to:, , (2) Apical cell present in shoot apex only, , (b) Apical cell present in shoot and root apex both, , (c) Meristems located throughout the plant body, , (@) Meristems located at certain positions in plant body, 10. Plant body possess actively dividing cells at certain locations which are giving rise to, , other cells. Cells formed later : ., , (a) Have capacity of division and give rise to new meristems, , (b) Are known as meristems ;, , (c) Lack capacity of division and are differentiated to perform specific function, , (¢) Are totipotent cells

Page 2 :
11, What Is meant by the open type of growth In plants?, (a) New cells are always being added to meristems, (b) Restricted growth which can open sometimes, (c) Each cell of plant body is capable of division, (d) Meristematic cells divide continuously to add Cells ta plant body, 12. Primary growth In plants occur mainly by elongation of main axis by the activity of (a) Cork-cambium (b) Apical meristem, (c) Lateral meristem (d) Vascular cambium, , 13. Which set of meristems appear later In life in dicots and gymnosperms and Increase the, girth of organs?, , (a) Apical meristem, Intercalary meristem, , (b) Lateral meristem, Vascular meristem, Apical meristem, (c)Intercalary meristem, Cork-cambium, Lateral meristem, (d) Lateral meristem, Cork-cambium, Vascular meristem, , Analysis of growth at cellular level is done by :, , (a) Increase in protoplasm (b) Increase in length, (c) Increase in number (d) Increase in surface area, 15. Which of the plant part Is not correctly related with the Parameter of its growth?, (a) Pollen tube—Length (b) Dorsiventral leaf—Surtace area, {c) Meristem—Cell number (4) Watermelon cell—Dry weight, As) Volume of a watermelon cell may increase upto :, (a) 10,000 times (b) 50,000 times, (c) 1,00,000 times (d) 3,50,000 times, , 17. Select incorrect statement :, (a) Vascular cambium is present in the initial phase of development in dicots, , (b) Single root apical meristem can give rise to thousands of cells in a hour, (C) Plant growth is indeterminate but measurable, , ‘(d) Growth of pollen tube is measured in terms of length, , ./ f A—Meristematic phase, B—Phase of maturation and C—Phase of elongation, then what, will be the correct sequence of these phases during a period of growth?, , (a) A>B>C (b})} BsA5C4A, (Ct) Bo>A>C (4) Ao>C3B, 19. Incorrect about the cell of apical meristem is :, (a) Cells are rich in protoplasm (b) Nuclei are large, (c) Few plasmodesmatal Connections (d) Thin cell wall, 20. Cell wall of cells of apical meristems is (a) Thin, cellulosic and primary in nature (b) Thin, cellulosic and secondary in nature, , (c) Thick, cellulosic and Primary in nature (d) Thick, non-cellulosic and secondary in nature

Page 3 :
21., , 22., , 23., , 24., , 25., , , , Initial development of a plant, sateen plant Is shown in the diagram. Select, , , , , , , , , , , , , , , , , , , , , , , , , , , , Hypocotyl Seed Coat Cotyledon, , {a) D A C, , (b) Cc A 8, , (c) A c B, , (d) A c D, During the period of growth, the cells undergoing phase of elongation are located :, (a) Proximal to meristematic zone (b) Proximal to maturation zone, (c) Distal to maturation zone (d) Distal to root hair zone, , a the following occur in the cells in phase of elongation during growth period, (a) Increase in volume of cell (b) Increase in length of cell, (c) Decrease in vacuolation (d) Increase in cell wall deposition, , In terms of wall thickening and protoplasmic modifications, plant cells attain thelr, maximal size during : P, , (a) Meristematic phase of growth (b) Phase of elongation, (c) Phase of maturation _ (0) Not certain, Incorrect about arithmetic growth is :, , (a) After mitosis, one cell continue to divide while another matures, , (b) Growth rate rapidly increase, , (c) If we plot growth of an organ against time, a linear curve is obtained, (d) Elongation of root at a constant rate is an example, , Incorrect about geometrical growth Is :, , {a) After mitosis, both daughter cells retain the capacity of division, , (b) Growth pattern follows sigmoid curve, , (c) Less common than arithmetic growth in plants, , (d) Growth rate rapidly increase, , 27. During lag phase of geometric growth, growth rate is :, ~ (a) Slow (b) Fast, (c) Moderately fast (4) Zero, (22) measurement of total growth per unit time Is :, (a) Absolute growth rate (b) Relative growth rate, (c) Arithmetic growth rate (d) Geometric growth rate, , Which of the following Is not favourable for growth?, (a) Presence of oxygen (b) Presence of water, (c) Temperature in optimum range (d) Absence of micronutrients

Page 4 :
30 Regaining the capacity of cell division by mature cells Is termed as :, , 4, , 32., , 33., , 34., , 35., , 36., , 37., , (a) Differentiation (b) Deditferentiation, Redifferentiation (d) Totipotency, , , , , , , , , , , , , , , , , , , , , , , , , ‘Match the Column | with Column Il., Column-! Column-Il, A, |Dedifferentiation 1. |Formation of tracheary element, B. | Differentiation 2. |Formation of cork-cambium, C. |Red Differentiation | 3. | Formation of cork, (a) A-1, B-3, C-2 (b) A-1, B-2, C-3, (c) A-2, B-3, C-1 (d) A-2, B-1, C-3, , their protoplasm during formation of tracheary element., bium Is result of redifferentiation., , (b) Only Statement B is correct, (d) Both Statements A and B are incorrect, g from parenchymal cells is an example of :, (b) Dedifferentiation, (d) Redifferentiation, m same meristem in plants. This Indicates that, , Statement A: Cells have to lose, Statement B : Formation of cork-cam|, (a) Only Statement A is correct, , (c) Both Statements A and B are correct, Interfascicular camblum developin, (a) Totipotency, , (c) Differentiation, , Different structures develop fro!, differentiation In plants Is :, , (a) Determinate (b) Open type, (d) Restricted, , (c) Limited, , Ability of plants to form different kinds of structures in response to environment Is, termed as:, , (a) Totipotency (b) Differentiation, , (c) Adaptation (d) Plasticity, , Select wrong statement :, , (a) Protoplasm of cells increase in volume during formation of tracheary elements, , (b) Single meristem give rise to any structures at maturity in plants, , (c) All major groups of plant growth inhibitors were accidentally discovered, , (d) Two of the above are incorrect, , Read the following statements (A-E) and answer the question that followsthem:, A—At a time, two type of leaves are present in cotton., , B—Kinetin is derivative of carotenoids. \, c—Cells that are located away from root apical meristems, differentiate as root CaP cells, D—Nuclei are conspicuous in meristematic cells. A, E—Plant growth regulators are intracellular factors affecting the development of, , growth., How many of the above statements are not correct?, (a) One (b) Two, , (c) Three (d) Four

Page 5 :
Ne Among the following, how many are intracejjular intrinsic, factors?, (Temperature, Oxygen, Genetic factors, Nutrition, Water, Plant growth regulators, Light], , , , , , , , (a) One (b) Two, (c) Three (d) Four, 39. Select the correct match :, Column-t Column-t, A. [Plasticity 1. | Formation of cork, , , , , , Dedifferentiation | 2. | Formation of 2 types of leaves, , , , , , , , , , , , , , , , Redifferentiation | 3. | Formation cork-cambium, (a) A-2, B-3, C-1 (b) A-1, B-3, C-2, (c) A-2, B-1, C-3 (d) A-1, B-2, C-3, , 40. During formation of following structures dedifferentiation can be observed in :, [Cork, Secondary cortex, Tracheary element, Intra-fascicular cambium, Inter-fascicular, , , , cambium, Cork-camblum], (a) One (b) Two, (c) Three (d) Four, , 43Two types of growth are shown in the figures. Select the correct statement., (a) Ais arithmetic growth and growth curve is linear, (b) Bis arithmetic growth and growth curve is linear, , A B, (c) Ais geometric growth and growth curve is sigmoid, (d) Bis geometric growth and growth curve is linear, , 42. Which of the following is incorrectly matched?, (a) Heterophylly—Plasticity, , (b) Plant growth regulators—Intracellular intrinsic, control, , (c) Kinetin—Adenine derivative, , (d) Redifferentiation—Differentiation of cork-cambium, , 43. At a time, we can observe two types of leaves in:, , (a) Cotton (b) Butter cup, {c) Larkspur (d) All of these, 4a. Among the following heterophylly Is observed in different phases of life and not at a, same time :, (a) Buttercup and Larkspur (b) Buttercup and Cotton, (c) Cotton and Coriander (d) Coriander and Buttercup, , 45, Which of the following correctly explains the heterophylly In buttercup?, (a) Two types of leaves are produced in different phases of life, i.e., juvenile leaves are different from leaves of, , Mature plant, () Leaves produced in air and soil have different shapes.