CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -The phototropic curvature is the result of uneven distribution of auxins. Phototropism is the growth of an organism in response to light stimulus. During phototropism, the auxin concentration in stem cells is usually higher on the side of the stem away from light.

Detailed explanation-2: -Thus the uneven distribution of auxin results in phototropism-bending of the plant towards the light source.

Detailed explanation-3: -Auxin is the hormone that causes bending of the plant towards light. Auxin synthesized by the cells present in area receiving light moves towards the shady side of the stem and causes elongation of that part. Thus the shoot appears bent towards light.

Detailed explanation-4: -Unequal distribution of auxin causes phototropism. It causes the plant growth either away or towards the light, based on which part receives light. Auxins are present in higher quantities on the shaded side of a stem. Since auxins promote stem elongation, the shaded part grows taller.

Detailed explanation-5: -influence of plant hormones The phototropic response occurs because greater quantities of auxin are distributed to the side away from the light than to the side toward it, causing the shaded side to elongate more strongly and thus curve the stem… …