Plant Growth and Development Questions with answer.

Biology Plant Growth and Development DPP-1


1. Development in plants refer to :
(a) Growth only
(b) Di erentiation only
(c) Growth and di erentiation
(d) Di erentiation and senescence

2. Expansion of leaf is :
(a) Not an example of growth
(b) An example of unlimited growth
(c) An example of unlimited di erentiation
(d) An example of limited growth

3. Growth in plants is :
(a) Always indeterminate
(b) Generally indeterminate
(c) Always restricted
(d) Closed type

4. Incorrect about plant growth is :
(a) Open type (b) Indeterminate (c) Due to meristems (d) None of these

5. Indeterminate growth in plants is due to :
(a) Apical cell presents in shoot apex only
(b) Apical cell presents in shoot and root apex both
(c) Meristems located throughout the plant body
(d) Meristems located at certain positions in plant body

6. 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 di erentiated to perform speci c function
(d) Are totipotent cells

7. 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 to plant body

8. Primary growth in plants occur mainly by elongation of main axis by the activity
(a) Cork-cambium
(b) Apical meristem
(c) Lateral meristem
(d) Vascular cambium


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