MCQ questions for class 11 biology chapter 15 Plant Growth and Development with answer PDF | NEET MCQ Plant Growth and Development

MCQ questions for class 11 biology chapter 15 : MCQs Questions for Class 11 Biology chapter 15 Plant Growth and Development with Answers PDF Free Download prepared here according to the latest CBSE RBSE ans other State Board syllabus and NCERT curriculum. Students can practice CBSE Class 11 Biology MCQs Multiple Choice Questions for all Chapter.

MCQs questions for class 11 biology chapter 15 PDF Download

MCQs questions for class 11 biology chapter 15 chapter 15 Plant Growth and Development with answer Free PDF Download | NEET MCQ Plant Growth and Development

Q.1 The first natural cytokinins obtained from unripe maize grains is known as

(a) Indole 3-acetic acid
(b) ABA
(c) Zeatin
(d) Kinetin

(c) Zeatin


Q.2 Two important growth inhibitors in plants are

(a) Ethylene and abscisic acid
(b) Auxins and abscisic acid
(c) Gibberellins and abscisic acid
(d) Cytokinins and ethylene

(a) Ethylene and abscisic acid


Q.3 Abscisic acid (ABA) was first isolated from cotton balls by

(a) Addicot et al
(b) Letham et al
(c) Brian et al
(d) Kurosava

(a) Addicot et al


Q.4 Which is a long day plant

(a) Xanthium
(b) Wheat
(c) Soyabean
(d) Tobacco

(b) Wheat


Q.5 Which can replace the requirement of vernalisation

(a) Gibberellins
(b) Auxin
(c) Cytokinin
(d) Ethylene

(a) Gibberellins


Q.6 Which is a short day plant?

(a) Glycine max
(b) Triticum aestivum
(c) Raphanus sativus
(d) Daucus carota

(a) Glycine max


Q.7 Intercalary meristems are of

(a) Permanent nature
(b) Temporary nature
(c) Some are permanent some temporary
(d) None of these

(b) Temporary nature


Q.8 Cells of fibers and tracheids elongate during

(a) Phase of cell division
(b) Phase of cell elongation
(c) Phase of cell maturation
(d) Phase of cell differentiation

(a) Phase of cell division


Q.9 Typical plant growth shows _________ curve.

(a) J-shaped
(b) S-shaped
(c) I-shaped
(d) Parabolic

(b) S-shaped


Q.10 Exponential growth of the plants is express as W1 = W0 ert r represents

(a) ability of the plant to produce new cells
(b) efficiency index
(c) relative growth rate
(d) all of the above

(d) all of the above


Q.11 Opening of floral buds into flowers, is a type of:

(a) Autonomic movement of variation
(b) Autonomic movement of locomotion
(c) Autonomic movement of growth
(d) Paratonic movement of growth

(c) Autonomic movement of growth


Q.12 Which one is incorrect?

(a) Epiblast is presumptive ectoderm and mesoderm
(b) Hypoblast is presumptive endoderm
(c) Hypoblast is presumptive mesoderm
(d) Upper layer of cells in blastoderm is epiblast

(c) Hypoblast is presumptive mesoderm


Q.13 The stage of rapid cell division just after fertilization is

(a) Organogenesis
(b) Cleavage
(c) Gastrulation
(d) Growth

(b) Cleavage


Q.14 Plants grow throughout their life due to

(a) presence of meristems
(b) presence of vascular cambium
(c) presence of xylem and phloem
(d) presence of tracheids

(a) presence of meristems


Q.15 Liver and pancreas arise from

(a) Foregut
(b) Midgut
(c) Hindgut
(d) None of these

(a) Foregut


Q.16 Which one of the followings is a gaseous plant hormone?

(a) Ethylene
(b) Gibberellin
(c) IAA
(d) Abscisic acid

(a) Ethylene


Q.17 To prevent over – ripening, bananas should be

(a) given a dip in ascorbic acid
(b) maintained at room temperature
(c) refrigerated
(d) stored at the top of refrigerator

(c) refrigerated


Q.18 Growth in dorsiventral leaf is measured in terms of

(a) length of leaf
(b) increase in cell number
(c) surface area increase
(d) none of these

(c) surface area increase


Q.19 Three important growth promotor hormones in plants are

(a) Auxins, gibberellins and ethylene
(b) Auxins, gibberellins and cytokinins
(c) Ethylene, abscisic acid and cytokinins
(d) Gibberellins, cytokinins and abscisic acid

(b) Auxins, gibberellins and cytokinins


Q.20 First hormone isolated from human urine suffering from pellagra disease was

(a) Gibberelins
(b) Auxins
(c) Cytokinins
(d) Abscisic acid

(b) Auxins


Q.21 Auxins hormone was first discoverd by

(a) Kogletal
(b) Went
(c) Darwin
(d) Boysen Jenson

(b) Went

MCQ Questions for Class 11 Biology with Answers Chapter Wise PDF Download

MCQ Questions of Class 11 Biology with Answers Pdf will guide students to do a quick revision for all chapter.

  1. MCQs questions for class 11 biology chapter 1 The Living World
  2. MCQs questions for class 11 biology chapter 2 Biological Classification
  3. MCQs questions for class 11 biology chapter 3 Plant Kingdom
  4. MCQs questions for class 11 biology chapter 4 Animal Kingdom
  5. MCQs questions for class 11 biology chapter 5 Morphology of Flowering Plants
  6. MCQs questions for class 11 biology chapter 6 Anatomy of Flowering Plants
  7. MCQs questions for class 11 biology chapter 7 Structural Organisation in Animals
  8. MCQs questions for class 11 biology chapter 8 Cell: The Unit of Life
  9. MCQs questions for class 11 biology chapter 9 Biomolecules
  10. MCQ questions for class 11 biology chapter 10 Cell Cycle and Cell Division
  11. MCQ questions for class 11 biology chapter 11 Transport in Plants
  12. MCQ questions for class 11 biology chapter 12 Mineral Nutrition
  13. MCQ questions for class 11 biology chapter 13 Photosynthesis in Higher Plants
  14. MCQ questions for class 11 biology chapter 14 Respiration in Plants
  15. MCQ questions for class 11 biology chapter 15 Plant Growth and Development
  16. MCQ questions for class 11 biology chapter 16 Digestion and Absorption
  17. MCQ questions for class 11 biology chapter 17 Breathing and Exchange of Gases
  18. MCQ questions for class 11 biology chapter 18 Body Fluids and Circulation
  19. MCQ questions for class 11 biology chapter 19 Excretory Products and their Elimination
  20. MCQs questions for class 11 biology chapter 20 Locomotion and Movement
  21. MCQs questions for class 11 biology chapter 21 Neural Control and Coordination
  22. MCQ questions for class 11 biology chapter 22 Chemical Coordination and Integration

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