NEET BIOLOGY

Detailed explanation-1: -The growth of shoots and roots during primary growth enables plants to continuously seek water (roots) or sunlight (shoots). The influence of the apical bud on overall plant growth is known as apical dominance, which diminishes the growth of axillary buds that form along the sides of branches and stems.

Detailed explanation-2: -In phototropism a plant bends or grows directionally in response to light. Shoots usually move towards the light; roots usually move away from it. In photoperiodism flowering and other developmental processes are regulated in response to the photoperiod, or day length.

Detailed explanation-3: -A: A plant grows new tissue from an apical meristem. The apical meristem is a group of cells that retain the ability to continue divisions, forming new cells continuously as the plant grows. This PRIMARY growth is responsible for growth in height.

Detailed explanation-4: -Through a process called photosynthesis, plants absorb energy from the sun, which fuels the processes necessary for survival. A plant’s leaves act as “solar panels, ” capturing light as efficiently as possible to help the plant grow.

Detailed explanation-5: -Stem grows towards the sunlight. They absorb the light from sunlight for preparing their own food through photosynthesis.