AP BIOLOGY

Detailed explanation-1: -Phototropism is the growth of the plant in response to the light. Phototaxis is the movement of the plant in response to the diffuse stimulus of light. Photonasty is the nastic nondirectional movement in response to the light.

Detailed explanation-2: -Phototropism. Plants grow towards or away from the light, the type of tropism in the response to light is called phototropism. In general, the stems usually show positive phototropism, while roots show negative phototropism. Leaves also positively respond toward the source of light.

Detailed explanation-3: -Phototaxis is a kind of taxis, or locomotory movement, that occurs when a whole organism moves towards or away from a stimulus of light. This is advantageous for phototrophic organisms as they can orient themselves most efficiently to receive light for photosynthesis.

Detailed explanation-4: -The response to light that some insects experience is called phototaxis. This means that the whole body of the organism will move toward or away from light. Moths are the classic example; they are positively phototactic. Cockroaches, however, are negatively phototactic.

Detailed explanation-5: -Answer. is that phototropism is (biology) the movement of a plant towards or away from light while phototaxis is (biology) the movement of an organism either towards or away from a source of light.