0
What else can I help you with?
What is the type of growth response having to do with light?
Phototropism is the growth response of plants to light, where they grow towards a light source. This response is regulated by the plant hormone auxin.
What causes plant stems to exhibit positive response to light?
Plants exhibit positive response to light through phototropism, a process regulated by the hormone auxin. When one side of the stem is exposed to light, auxin accumulates on the shaded side and promotes cell elongation, causing the stem to bend towards the light source. This helps the plant maximize light absorption for photosynthesis.
What is phototropisim?
Phototropism is the growth response of plants to light, where they bend towards the light source. This directional growth allows plants to optimize their exposure to sunlight for photosynthesis. Phototropism is mainly controlled by the plant hormone auxin.
What causes phototropism in green plants?
Phototropism in green plants is caused by the hormone auxin accumulating on the shaded side of the plant, stimulating cell elongation on that side and leading to bending towards the light source. This response allows the plant to maximize light absorption for photosynthesis.
The chemical that promotes phototropism is?
Auxin is the chemical that promotes phototropism in plants. Auxin is produced at the tips of plant stems and helps cells elongate, causing the plant to bend towards a light source.
What is the type of growth response having to do with light?
Phototropism is the growth response of plants to light, where they grow towards a light source. This response is regulated by the plant hormone auxin.
Auxin act in response to what?
light , the direction of light, they are bound to move in the direction where the light came from.
How do auxin's control a plants response to light?
Auxins play a crucial role in phototropism, the plant's growth response to light. They promote elongation of cells on the shaded side of the plant, causing it to bend towards the light source. Auxins help to redistribute growth hormones, leading to asymmetric growth and the plant's directional growth towards light.
What causes plant stems to exhibit positive response to light?
Plants exhibit positive response to light through phototropism, a process regulated by the hormone auxin. When one side of the stem is exposed to light, auxin accumulates on the shaded side and promotes cell elongation, causing the stem to bend towards the light source. This helps the plant maximize light absorption for photosynthesis.
What is phototropisim?
Phototropism is the growth response of plants to light, where they bend towards the light source. This directional growth allows plants to optimize their exposure to sunlight for photosynthesis. Phototropism is mainly controlled by the plant hormone auxin.
What is the physical basis of the phototropic response?
Phototropic response in plants is based on the redistribution of the plant hormone auxin, which promotes cell elongation on the shaded side of the plant, causing it to bend towards the light source. This redistribution is mediated by photoreceptors called phototropins, which sense the direction of light and trigger the movement of auxin to induce the plant's growth towards light.
What is phototropism and how does it explain the phenomenon of plants growing towards light?
Phototropism is the growth of plants in response to light. Plants grow towards light because light stimulates the production of a hormone called auxin, which causes cells on the shaded side of the plant to elongate, bending the plant towards the light source.
What is the physical basis of the phototropic response in plants?
Tropisms are growthg responses in plants in which the direction of growth depends on the direction of the stimulus. Phototropism is the response to light. The shoots of plants are positively phototropic (grow towards the light) while the roots are negatively phototropic (grow away from light).Experiments carried out in 1880 by Charles Darwin and his son Francis showed that the stimulus was detected by the tip of the shoot but the bending response took place just below the tip.In 1913 the Dutch plant physiologist Boysen-Jensen showed that a chemical substance produced in the tip of the shoot passed to the bending region to cause the response and that this substance passed down the shaded side of the shoot.F. W.Went extracted the growth substance which was identified as auxin. He showed that the phototropic response was due to the unequal distribution of auxin in the shoot. More auxin accumulates on the shaded side of the shoot and causes more rapid cell elongation on that side, so that the shoot bent over towards the light.See related links below
What cause plants to bend towards the light?
Plants bend towards light through a process called phototropism, which is driven by the unequal distribution of the plant hormone auxin. When light shines on one side of a plant, auxin accumulates on the shaded side, promoting cell elongation there. This growth causes the plant to bend towards the light source, optimizing its ability to photosynthesize. This adaptive response helps maximize light absorption for energy production.
How does photo-tropism work in plants?
Plants have a hormone called auxin in them. When a plant is exposed to light and shade this hormone(auxin) reacts. For example: If light falls on the right hand side of the plant, the left hand side would be in the shade. This makes the auxin expand in the shaded area, causing the plant to grow towards the light.
What causes phototropism in green plants?
Phototropism in green plants is caused by the hormone auxin accumulating on the shaded side of the plant, stimulating cell elongation on that side and leading to bending towards the light source. This response allows the plant to maximize light absorption for photosynthesis.
How do plants response to stimuli?
Plants respond to stimuli through various mechanisms, including growth towards light (phototropism), response to touch (thigmotropism), avoidance of obstacles (skototropism), and response to gravity (gravitropism). These responses are controlled by hormones such as auxin, which help regulate plant growth and development in different environmental conditions.
