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Q.8. The stage of rapid cell division just after fertilization is

  1. Organogenesis
  2. Cleavage
  3. Gastrulation
  4. Growth
Answer: (b) Cleavage

Plant Growth And Development (Class-11th Biology) Revision Test | MCQs For NEET

25 Questions 4 Attempts 3.74K Seen
This practice/Revision test includes 25 important multiple-choice questions (MCQ) from the chapter- Plant Growth  And Development (Biology class 11th) for the viva, neet, and other competitive entrance exams. Start Test without Login in
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Action Q.No. Que title Option 1 (a) Option 2 (b) Option 3 (c) Option 4 (d)
1 Mechanism of development was explained by Hans Dietrisch Spemann Both a and b Haemmerling
2 Intercalary meristems are of Permanent nature Temporary nature Some are permanent some temporary None of these
3 Cells of fibers and tracheids elongate during Phase of cell division Phase of cell elongation Phase of cell maturation Phase of cell differentiation
4 Typical plant growth shows _________ curve. J-shaped S-shaped I-shaped Parabolic
5 Exponential growth of the plants is express as W1 = W0 ert r represents ability of the plant to produce new cells efficiency index relative growth rate all of the above
6 Opening of floral buds into flowers, is a type of: Autonomic movement of variation Autonomic movement of locomotion Autonomic movement of growth Paratonic movement of growth
7 Which one is incorrect? Epiblast is presumptive ectoderm and mesoderm Hypoblast is presumptive endoderm Hypoblast is presumptive mesoderm Upper layer of cells in blastoderm is epiblast
8 The stage of rapid cell division just after fertilization is Organogenesis Cleavage Gastrulation Growth
9 Which one of the followings is a gaseous plant hormone? Ethylene Gibberellin IAA Abscisic acid
10 To prevent over – ripening, bananas should be given a dip in ascorbic acid maintained at room temperature refrigerated stored at the top of refrigerator
11 Growth in dorsiventral leaf is measured in terms of length of leaf increase in cell number surface area increase none of these
12 Plants grow throughout their life due to presence of meristems presence of vascular cambium presence of xylem and phloem presence of tracheids
13 Mechanism of development was explained by Hans Dietrisch Spemann Both a and b Haemmerling
14 The ability to regain or recover the lost or injured part of body is Aging Regeneration Abnormal development Primary inductio
15 Which growth hormone accerlates the malting process in brewing industry? Auxins Gibberellins Ethylene Cytokinins
16 Which plant growth regulator is the derivative of carotenoids? Auxin Gibberelic acid Cytokinin Abscisic acid
17 Typical plant growth shows _________ curve. J-shaped S-shaped I-shaped Parabolic
18 Mobilisation of stored food in germinating seeds is triggered by auxins cytokinins gibberellins ethylene
19 Cavity formed between somatic and splanchnic mesoderm is called Gastrocoele Blastocoele Coelom Neurocoele
20 IAA is naturally occurring plant hormone called Gibberlin Auxin Cytokinin Absicic acid
21 Auxin is synthesised from in apical meristem from amino acid Isoleucine Methionine Niacin Tryptophan
22 Growth regulator which induces parthenocarpy IAA ABA Cytokinin Ethylene
23 Formation of seedless fruit without act of fertilisation Parthenocarpy pseudocarpy Apomixis Parthenogenesis
24 The major site for production of gibberellin is Embryos Roots Young leaves All of these
25 Gibberellin is isolated from Brian et al Went Yabuta Kurosawa
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