SSC MTS EXAM

Detailed explanation-1: -Hence, the plant shoot cells on the shady side grow longer than the cells exposed to light because of accumulation of auxin on the shaded side which stimulates cell elongation.

Detailed explanation-2: -This is due to special proteins (called phototropins) on the sunny side that are activated by light and stimulate the transport of auxins away from this region. As a result, the cells on the sunny side have fewer auxins. They are much less stimulated to elongate than the cells on the shady side.

Detailed explanation-3: -Auxin: Auxin is the plant hormone responsible for the elongation of cells. The word auxin, which means “to grow, ‘’ is frequently used in the fields of horticulture and agriculture. They are typically produced in the roots and stems of plants.