Students should refer to Worksheets Class 11 Biology Plant Growth and Development Chapter 15 provided below with important questions and answers. These important questions with solutions for Chapter 15 Plant Growth and Development have been prepared by expert teachers for Class 11 Biology based on the expected pattern of questions in the Class 11 exams. We have provided Worksheets for Class 11 Biology for all chapters on our website. You should carefully learn all the important examinations questions provided below as they will help you to get better marks in your class tests and exams.
Plant Growth and Development Class 11 Biology Worksheet
Question. Meristematic phase of growth is characterised by :
(a) Increased vacuolation
(b) Maximal size in terms of protoplasmic modifications
(c) Cells those are rich in protoplasm and having thin cell walls with abundant plasmodesmata
(d) Cell enlargement
Answer
C
Question. Growth at a cellular level, is principally a consequence of increase in amount of :
(a) Cell wall material
(b) Water
(c) Protoplasm
(d) Cell sap
Answer
C
Question. Nutrients both macro and micro essential elements are required by plant during growth for :
(a) Synthesis of protoplasm
(b) As source of energy
(c) Enzyme of activation
(d) All of the above
Answer
D
Question. Which of the following occur naturally in plants?
(a) 2, 4-dichlorophenoxyacetic acid
(b) Indole butyric acid
(c) Naphthalene acetic acid
(d) Kinetin
Answer
B
Question. Which of the following statements are correct regarding growth?
(A) In plants, the form of growth is open and localised
(B) Swelling of piece of wood in water is considered as growth since it involve the increase in size
(C) Growth is accompanied by metabolic processes
(D) Growth, at a cellular level, is a result of increase in the amount of protoplasm
(a) All the statements are correct
(b) A and B
(c) B, C and D
(d) A, C and D
Answer
D
Question. Which of the following is an intercellular intrinsic factor regulating development ?
(a) genetic constitution
(b) PGR
(c) Water
(d) Oxygen
Answer
B
Question. Match the following :
| (A) Auxin | (i) Derivatives of carotenoids |
| (B) Gibberellin | (ii) Gas |
| (C) Cytokinin | (iii) Adenine derivatives |
| (D) Ethylene | (iv) Terpenes |
| (E) Abscisic acid | (v) Indole compounds |
(a) A – i, B – ii, C – iii, D – iv, E – v
(b) A – ii, B – i, C – v, D – iii, E – iv
(c) A – v, B – iv, C – iii, D – ii, E – i
(d) A – iv, B – iii, C – i, D – ii, E – v
Answer
C
