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How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light?
movement in sensitive plants : d movement in sensitive plant leaves takes place in response to touch stimulus.eg:touch-me-not plant movement of a shoot towards light: When sunlight/light falls from 1 direction one shoot,d growth hormone auxin diffuses towards the shady side of shoot.this increased concentration of auxin stimulates the cells 2 grow longer on the shaded side of the shoot.dis enhanced growth 1 side cause bending of shoot 2wards light
How does auxin produce phototropism?
Auxin accumulates on the lower surface of the root and inhibits elongation of cells in that region.
Is Auxin is asymmetrically distributed in shoots because the auxin on the side of the plant facing the source of light is destroyed?
No, the auxin produced on the side facing the light source simply moves to the side away from the light. This causes cell elongation on the side opposite the light, making the stem appear to "grow toward the light"
How does an auxin work?
If human body have hormones, same true with plants and this plant hormones called auxin. It is a substance naturally produced in actively growing parts of plants that regulate many aspects of plant growth and development.
How is the role of auxin in the bending of stems toward light?
Auxins move from their source into the rest of the plant, where they stimulate cell elongation. A higher concentration of auxins accumulate in the shaded part of a stem and causes the plant to move towards the light.
Why do a plants roots always grow downwards and its shoots always grow upwards?
the stimulus in this case is gravity .shoots grow up,away from gravity.roots grow down,towards gravity.again auxin control this growth.if a plant is put its side the auxin builds up on the lower side of the shoot and the root.in the shoot the auxin stimulates it to grow moreon the lower sidethis causes the shoot to bend upwardsin the root the auxin also builds up on the lower side.but Ayxin slows down growth in a rootso tht upper side of the root grows quicker than the lower sidethe root bends downwards
How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light?
movement in sensitive plants : d movement in sensitive plant leaves takes place in response to touch stimulus.eg:touch-me-not plant movement of a shoot towards light: When sunlight/light falls from 1 direction one shoot,d growth hormone auxin diffuses towards the shady side of shoot.this increased concentration of auxin stimulates the cells 2 grow longer on the shaded side of the shoot.dis enhanced growth 1 side cause bending of shoot 2wards light
Are Auxin's used to make corn and wheat grow taller?
Yes because, Auxin is a plant hormone produced in a stem tip that promotes cell elongation. Then Auxin moves to the darker side of the plant causing the cells there to grow larger than the corresponding cells on the lighter side of the plant.
What causes a stem to bend towards light?
this is called a tropism, where the growth of a plant in a particular stimulus, (light in this case). A chemical called auxin causes the elongation of cells. When a shoot is illuminated from one side, auxin is transported down the shaded side. This shaded side then elongates more rapidly than the illuminated side, causing the shoot to bend towards the light. Also the stimulus(light) must be detected by the tip of the plant shoot or root.
What meant by phototropic movement?
When concluded that auxin accumulated on the side of the plant away from the light. When auxin flowed in this direction, the cells of the apical meristem elongated on that side and caused the plant to bend toward the light as growth continued.
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 are some examples of phototropism?
IN PLANTS plant stems grow towards light (Auxins are plant growth hormones. They work by making cells grow longer, and divide more.) The Auxin collects on the dark side of the shoot; therefore, more growth will occur on this side of the plant. Therefore, the shoot will gradually lean towards the sun , important for photosynthesis. They need light for photosynthesis
How does auxin produce phototropism?
Auxin accumulates on the lower surface of the root and inhibits elongation of cells in that region.
Is Auxin is asymmetrically distributed in shoots because the auxin on the side of the plant facing the source of light is destroyed?
No, the auxin produced on the side facing the light source simply moves to the side away from the light. This causes cell elongation on the side opposite the light, making the stem appear to "grow toward the light"
What role do plant hormones play in photo-tropism?
In phototropism, plant hormones control the growth and development of plants due to light. For example, in positive phototropism, auxin, a hormone, speeds up the rate at which plant cells grow. It builds up on the shadier side of a plant, causing those cells to grow faster than the cells on the sunny side of the plant. With longer cells on one side than the other, the stem bends toward the light.
Are used to make corn and wheat grow taller?
Yes because, Auxin is a plant hormone produced in a stem tip that promotes cell elongation. Then Auxin moves to the darker side of the plant causing the cells there to grow larger than the corresponding cells on the lighter side of the plant.
How does an auxin work?
If human body have hormones, same true with plants and this plant hormones called auxin. It is a substance naturally produced in actively growing parts of plants that regulate many aspects of plant growth and development.
