Chapter 19
Growth And Development
Encircle the most appropriate answer among the following options
1. The progressive changes which are undergone before an organism acquires
its adult form constitute choose which one is correct:
- Metamorphosis
- Embryonic development
- Growth
- Development
2. Meristems found at the tips of root and shoot are called choose which one is correct:
- Intercalary
- Lateral
- Apical
- None of them
3. During cell division the number of cells increase by choose which one is correct:
- Elongation
- Meiosis
- Mitosis
- Maturation
4. During elongation the cell volume increases upto 150 times due to uptake of choose which one is correct:
- Food
- Minerals
- Water
- Air
5. The light which favours elongation of cells is choose which one is correct:
- Red
- White
- Blue
- Ultraviolet
6. Metabolic activity and growth cannot take place in absence of choose which one is correct:
- High temperature
- Light
- CO2
- Oxygen
7. what causes apical dominance by diffusing from the apical bud which
inhibits the growth of lateral buds?
- Food
- Minerals
- Water
- Auxin
8. A series of mitotic divisions which take place in a zygote are called choose which one is correct:
- Fertilization
- Growth
- Gastrulation
- Cleavage
9. At the cephalic end of primitive streak, closely packed cells form a local
thickening known as choose which one is correct:
- Splanchnic mesoderm
- Somatic mesoderm
- Hensen’s node
- Gastrocoele
10. The cavity formed between somatic and splanchnic mesoderm is choose which one is correct:
- Gastrocoele
- Neurocoel
- Coelom
- Primitive streak
11. In 24 hours embryo, the folding of neural plate is clearly visible in choose which one is correct:
- Neurula
- Gastrula
- Blastula
- Morulla
12. Zygote of which animal Spemann divided into two equal halves with the help of minute ligature of human hair?
- Salamandar
- Frog
- Fish
- Sheep
13. During gastrulation epiblast and hypoblast are two layers of choose which one is correct:
- Blastoderm
- Gastrula
- Neurula
- Morulla
14. Larval epidermins is produced by choose which one is correct:
- Yellow cytoplasm
- Gray equatorial cytoplasm
- Clear cytoplasm
- Gray vegetal cytoplasm
15. The size of Acetabularia may be upto several centimeters, though it has choose which one is correct:
- Many nuclei
- No nucleus
- Two nuclei
- One nucleus
16. This alga has a long stalk with an umbrella shaped cap at its top and
rhizoids, attached to the ground choose which one is correct:
- Acetabularia
- Spirogyra
- Euglena
- Chlamydomonas
17. The scientist who worked on Acetabularia is choose which one is correct:
- Spemann
- Hans Dietrisch
- Haemmerling
- Thimann
18. In 18 hours embryo, it is the most prominent structure choose which one is correct:
- Neurocoel
- Notochord
- Hensen’s node
- Primitive streak
19. from how many celled embryo did Spemann observed that, if a single cell is separated, it contains a complete set of genes and forms a complete embryo?
- 8
- 12
- 20
- 16
20. When a piece of ectoderm was removed from Frog’s embryo, it was unable to form normal choose which one is correct:
- Digestive system
- Circulatory system
- Reproductive system
- Nervous system
21. The human life span is judged to be maximum of choose which one is correct:
- 150 years
- 60 years
- 90 years
- 120-125 years
22. In microcephaly, the individuals are born with small choose which one is correct:
- Skull
- Ulna
- Humerus
- Radius
23. The negative physiological changes in our body are called choose which one is correct:
- Abnormalities
- Regeneration
- Growth
- Degeneration
24. This is the condition in which one of the sex chromosome is missing choose which one is correct:
- Klinefelter’s syndrome
- Turner’s syndrome
- Trisomy
- Mutation
25. Primary growth choose which one is correct:
- Optimum temperature for growth
- Secondary growth
- Photoperiodism
- Apical meristems
26. Cambium choose which one is correct:
- Apical meristems
- Photoperiodism
- Secondary growth
- Optimum temperature for growth
27. Increase in cell volume choose which one is correct:
- Due to uptake of water
- Photoperiodism
- Secondary growth
- Apical meristems
28. 25-30C choose which one is correct:
- Optimum temperature for growth
- Secondary growth
- Apical meristems
- Photoperiodism
29. Organogenesis choose which one is correct:
- Body organs formed, cells interact and differentiate
- Translucent appearance in blastoderm
- Blastocoele formed
- Folding of neural plate visible
30. Blastula choose which one is correct:
- Folding of neural plate visible
- Translucent appearance in blastoderm
- Body organs formed, cells interact and differentiate
- Blastocoele formed
31. Area pellucida choose which one is correct:
- Body organs formed, cells interact and differentiate
- Translucent appearance in blastoderm
- Blastocoele formed
- Folding of neural plate visible
32. Neurula choose which one is correct:
- Body organs formed, cells interact and differentiate
- Blastocoele formed
- Folding of neural plate visible
- Translucent appearance in blastoderm
33. Thimann and Skoog choose which one is correct:
- 22nd day
- Apical dominance
- 21st day
- Gives to muscle cells
34. Chick hatches choose which one is correct:
- 21st day
- 17th day
- Gives to muscle cells
- 22nd day
35. Yellow cytoplasm choose which one is correct:
- Apical dominance
- Gives to muscle cells
- 21st day
- Control the functioning of a specific cell type
36. Determinants choose which one is correct:
- 21st day
- Apical dominance
- 22nd day
- Control the functioning of a specific cell type
37. Regeneration choose which one is correct:
- (XXY)
- Microcephaly
- Due to aging
- None of these
38. Arthritis and arteriosclerosis choose which one is correct:
- Microscephaly
- Due to aging
- Ability to regain or recover the lost or injured part
- None of the above
39. Klinefelter’s syndrome choose which one is correct:
- (XXY)
- Microcephaly
- Due to aging
- (XO)
40. Turner’s syndrome choose which one is correct:
- (XO)
- Ability to regain or recover the lost or injured part
- XXY
- Due to aging
41. Which of the followings is irrelevant for growth and development?
- Cell division
- Cell elongation
- Differentiation
- All of the above
42. The cells which have ability to divide are choose which one is correct:
- Parenchyma
- Meristem
- Collenchyma
- Leaf cells
43. Match cambium with one the followings choose which one is correct:
- Apical meristem
- Lateral meristem
- Intercalary meristem
- All of the above
44. The meristem present at the tip of roots is choose which one is correct:
- Apical merisem
- Intercalary meristem
- Lateral meristem
- All of the above
45. The meristem present at the base of internodes is choose which one is correct:
- Apical meristem
- Lateral meristem
- Intercalary meristem
- All of the above
46. The growth of flowers is choose which one is correct:
- Indeterminate
- Determinate
- Automatic
- Controlled
47. The growth of root is choose which one is correct:
- Indeterminate
- Secondary growth
- Primary growth
- Determinate
48. The growth, in which length of plant increases, is choose which one is correct:
- Indeterminate
- Determinate
- Primary growth
- Secondary growth
49. The growth, in which width of plant increases, is choose which one is correct:
- Indeterminate
- Secondary growth
- Primary growth
- Determinate
50. The formation of cells of pith, cortex and vascular bundle is choose which one is correct:
- Cell elongation
- Cell division
- Maturation
- Cell division
51. The zone present at a little distance from the apex is choose which one is correct:
- Cell elongation
- Differentiation
- Maturation
- Cell division
52. Which of the followings is external factor in growth?
- Hormone
- Nutrition
- Temperature
- Water
53. The internal factor for growth is choose which one is correct:
- Light
- Oxygen
- Vitamins
- Carbon dioxide
54. If plants are grown in dark, it faces the deficiency of choose which one is correct:
- Water
- Nutrients
- Hormones
- Vitamins
55. Which of the following factors supply energy during growth?
- Hormones
- Water
- Vitamins
- Nutrients
56. The leaf primordial cells form which of the following organ?
- Leaves
- Shoot
- Leaves and shoot
- None of the above
57. The cambium is formed in choose which one is correct:
- Stage 1
- Stage 2
- Stage 3
- Stage 4
58. Xylem and phloem are formed in choose which one is correct:
- Stage 1
- Stage 5
- Stage 4
- Stage 6
59. Which of the following hormones produces inhibitory effect in apical
dominance?
- Gibberellins
- Auxins
- Cytokinins
- Abscisic acid
60. The hormone which releases inhibitory effect is choose which one is correct:
- Gibberellins
- Cytokinins
- Abscisic acid
- Auxins
61. Match growth correlations with one of the following choose which one is correct:
- Apical dominance
- Inhibitory effects
- Compensatory effects
- All of the above
62. The phenomenon which inhibits the sprouting of lateral bud is choose which one is correct:
- Apical dominance
- Inhibitory effects
- Compensatory effects
- None of the above
63. The rounded closely packed mass of blastomere is choose which one is correct:
- Blastula
- Morulla
- Gastrula
- Embryo
64. The layers of blastula are choose which one is correct:
- Ectoderm
- Mesoderm
- Blastoderm
- Endoderm
65. The stage of embryo with segmented cavity is called choose which one is correct:
- Blastula
- Morulla
- Gastrula
- Embryo
66. The presumptive endoderm is choose which one is correct:
- Epiblast
- Hypoblast
- Blastoderm
- None of the above
67. The peripheral part of blastoderm is called choose which one is correct:
- Area pellucida
- Area opaca
- Area of cell division
- None of the above
68. The upper area with translucent appearance is choose which one is correct:
- Area pellucida
- Area opaca
- Area of cell division
- None of the above
69. The mesodermal cells migrate medially and caudally to form choose which one is correct:
- Hensen’s node
- Primitive gut
- Primitive streak
- Somites
70. The primitive groove is marked on both sides of the embryo by choose which one is correct:
- Henson’s node
- Primitive ridges
- Primitive streak
- Primitive gut
71. Closely packed cells at cephalic end of primitive streak form a local
thickening called choose which one is correct:
- Primitive gut
- Hensen’s node
- Primitive streak
- Somites
72. Which of the followings form body muscles?
- Hensen’s node
- Primitive gut
- Somites
- Primitive streak
73. During the development of chick, somites are formed after choose which one is correct:
- 20 25 hours
- 25 26 hours
- 26 27 hours
- 28 29 hours
74. The cavity formed between somatic and splanchnic mesoderm is choose which one is correct:
- Blastocoel
- Primitive cavity
- Coelom
- Neurocoel
75. In the chick of 18 hour, the structure formed is choose which one is correct:
- Neural plate
- Neural groove
- Neural fold
- Neural tube
76. Neural groove is formed after choose which one is correct:
- 19 20 hours
- 21 22 hours
- 23 24 hours
- 24 25 hours
77. The scientist who worked on sea urchin embryo was choose which one is correct:
- Spemann
- Dietrsch
- Duetrochet
- Lyn
78. The pigment free area of egg is called choose which one is correct:
- Animal hemisphere
- Vegetal hemisphere
- Gray crescent
- All of the above
79. The larval epidermis is formed from choose which one is correct:
- Clear cytoplasm
- Yellow cytoplasm
- Grey vegetal
- Grey equatorial
80. The part of cytoplasm which form notochord is choose which one is correct:
- Clear cytoplasm
- Yellow cytoplasm
- Grey vegetal
- Grey equatorial
81. Experiments on Acetabulum were performed by choose which one is correct:
- Spemann
- Dietrisch
- Haemmerling
- Lyn
82. Selection of genes is done by choose which one is correct:
- Nucleus
- Chromosome
- Cytoplasm
- Ribosomes
83. Haemmerling performed experiments on choose which one is correct:
- Yeast
- Salamander
- Acetabularia
- Sea urchin
84. Spemann performed experiments on choose which one is correct:
- Salamander
- Sea urchin
- Frog
- Acetabularia
85. The biologists performed experiments on induction choose which one is correct:
- Spemann
- Mangold
- Both
- None
86. The primary organizer is choose which one is correct:
- Ventral lip of blastopore
- Dorsal lip of blastopore
- Lateral lip of blastopore
- None of the above
87. The negative physiological changes in the body are choose which one is correct:
- Induction
- Aging
- Syndrome
- None of the above
88. The study of aging is called choose which one is correct:
- Physiology
- Morphology
- Gerontology
- Herpetology
89. Which of the followings can slow down the process of aging?
- Smoking
- Over diet
- Exercise
- Sleep
90. Which of the followings possesses the greatest power of regeneration?
- Reptiles
- Amphibians
- Man
- Sponges
91. Lobster can regenerate only choose which one is correct:
- Mouth
- Legs
- Claw
- Wings
92. Earth worm can regenerate choose which one is correct:
- Skin
- Tail
- Setae
- Head
93. Salamander can regenerate choose which one is correct:
- Head
- Limbs
- Tail
- Skin
94. Lizard can regenerate choose which one is correct:
- Head
- Limbs
- Tail
- Skin
95. Man can regenerate choose which one is correct:
- Skin
- Limbs
- Tail
- Head
96. Regeneration in plant is confined to choose which one is correct:
- Roots
- Stems
- Leaves
- All of the above
97. Regeneration by dedifferentiated cells takes place in choose which one is correct:
- Prawn
- Salamander
- Earth worm
- Star fish
98. The branch which deals with the study of abnormal structures is choose which one is correct:
- Physiology
- Teratology
- Gerontology
- Herpetology
99. Haemophilia is caused due to abnormalities in choose which one is correct:
- Hormone
- Gene
- Metabolism
- Environment
100. The syndrome which leads to tallness and aggressiveness is choose which one is correct:
- XXY
- XO
- XYY
- XXX
101. Tetrogens are choose which one is correct:
- Genetic factors
- Environmental factors
- Hormonal facts
- Metabolic factors
102. Match tetrogen with the deficiency of one of the following choose which one is correct:
- Insulin
- Gene
- Nutritional
- None
103. The condition of small skull is choose which one is correct:
- Haemophilia
- Cleft palate
- Microcephaly
- Polydactyl
104. Match harelip with one of the followings choose which one is correct:
- Haemophilia
- Cleft palate
- Microcephaly
- Polydactyl
105. The intercalary meristem is choose which one is correct:
- Meristem present at the tip of roots
- Meristem present at the tip of stem
- Meristem present at the base of inter node
- Meristem present in the vascular tissues
106. Indeterminate growth is choose which one is correct:
- Growth stops after some times
- Growth stops but starts again
- Growth never stop
- Growth continues during youth age
107. Xylem and phloem are formed in choose which one is correct:
- Phase of cell division
- Phase of cell elongation
- Phase of maturation
- Phase of differentiation
108. Differentiation means choose which one is correct:
- Formation of similar cells from different cells
- Formation of different tissues from similar cells
- Formation of similar tissues from similar cells
- None of the above