What is phototropism short answer?

Phototropism is a directional response that allows plants to grow towards, or in some cases away from, a source of light. Photoperiodism is the regulation of physiology or development in response to day length.

What is phototropism in plants?

Phototropism, or the differential cell elongation exhibited by a plant organ in response to directional blue light, provides the plant with a means to optimize photosynthetic light capture in the aerial portion and water and nutrient acquisition in the roots.

What is phototropism explain with example?

Positive phototropism- Response of plant towards the light source. Example include sunflower. Negative phototropism- Plant grows opposite to the light source.

What is phototropism Class 8?

Phototropism is the phenomenon by which the plant bends in the direction of light. Light is required by the plants to stimulate energy production by the process of photosynthesis.

What is phototropism Class 11?

Phototropism originates from two words – ‘photo’ meaning light and ‘tropism’ meaning movement. Thus, we can say that Phototropism is defined as the movement of plants in the direction of light or towards the source of light. Plants respond positively to phototropism.

Where is auxin made?

stems
Auxins are a family of plant hormones. They are mostly made in the tips of the growing stems and roots, which are known as apical meristems, and can diffuse to other parts of the stems or roots. Auxins control the growth of plants by promoting cell division and causing elongation in plant cells (the cells get longer).

What is the difference between phototropism and photosynthesis?

Phototropism is a movement of curvature in plants caused by the light. Photoperiodism is the induction of flowering in response to the duration of light and dark periods in a day (photoperiods). Phototropism induces curvature in plant parts. Photoperiodism induce flowering in plants.

What is phototropism and Geotropism Class 10?

(i) Phototropism: The movement of plant parts in response to light is known as phototropism. The stimulus is light. (ii) Geotropism: The movement of plant parts in response to gravity is known as geotropism.

What is phototropism Class 10 CBSE?

Answer: Phototropism is directional movement in which the stem grows towards light stimulus and roots grow away from light. Hence, it is a positive phototrophic movement. Explanation : When sunlight/light falls from one direction on the shoot, the growth hormone auxin diffuses towards the shady side of the shoot.

What is phototropism quizlet?

phototropism. the growth response of a plant on response to light direction.