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Phototropism is the biological process for auxin's.
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What hormone cause photoTropism?
auxins
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.
Phototropism in plants is mediated by what plant growth substance?
auxin
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.
How does auxin produce phototropism?
Auxin accumulates on the shaded side of the plant stem due to light exposure, causing cells on that side to elongate and bend towards the light source. This creates the bending of the stem towards the light, known as phototropism. The differential growth of cells in response to auxin distribution results in the plant's ability to bend and grow towards light.
What plant hormone is Produced mainly in shoot tips and leaves?
Auxin is a plant hormone mainly produced in shoot tips and leaves. Auxin plays a crucial role in promoting cell elongation, apical dominance, and phototropism.
The effect of auxin depends on the target tissue?
true
Is phototropism a plant's response to light?
Yes, phtotropism is a plant's response to light. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism.
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 is the effect of auxin on different parts of plants?
Auxin is a plant hormone that regulates growth and development by promoting cell elongation, particularly in stems and roots. In stems, auxin facilitates upward growth by concentrating on the side away from light, causing the plant to bend towards the light (phototropism). In roots, auxin influences downward growth and root development, but in higher concentrations, it can inhibit root elongation. Overall, auxin plays a crucial role in coordinating directional growth and responses to environmental stimuli.
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 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.
