GROWTH DEVELOPMENT CHILD
GROWTH AND DEVELOPMENT
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Primary growth is the increase in girth of axis due to activity of Apical meristem
|
|
|
Secondary growth is the increase in girth due to activity of lateral meristem (vascular cambium & cork cambium)
|
|
|
Elongation of plant is the primary growth
|
|
|
b and c
|
Detailed explanation-1: -So, the correct option is ‘Secondary growth’.
Detailed explanation-2: -It is the result of cell division in the shoot apical meristem. Secondary growth is characterized by an increase in thickness or girth of the plant. It is caused by cell division in the lateral meristem. Herbaceous plants mostly undergo primary growth, with little secondary growth or increase in thickness.
Detailed explanation-3: -So, the correct answer is ‘secondary growth’
Detailed explanation-4: -Cambium (lateral meristem) is situated below the bark and is responsible for the increase in the girth of the stem or root.
Detailed explanation-5: -Detailed Solution. The correct answer is Option 1. Apical meristem is present at the growing tips of stems and roots and increases the length of the stem and the root.