Investigate and describe gravitropism andphototropism in shoots and roots
Question
Investigate and describe gravitropism andphototropism in shoots and roots
Solution
Gravitropism and phototropism are two important types of tropisms that plants exhibit. Tropism is the growth or movement of a plant in response to an environmental stimulus.
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Gravitropism: This is the growth or movement of a plant in response to gravity. In other words, it's how a plant knows to grow its roots down and its shoots up, regardless of the orientation of the seed.
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In Roots: Roots exhibit positive gravitropism, meaning they grow in the direction of gravitational pull. This is crucial for the plant's survival as it allows the roots to anchor the plant in the ground and absorb water and nutrients from the soil.
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In Shoots: Shoots, on the other hand, exhibit negative gravitropism. They grow upwards, away from the gravitational pull. This allows the plant to grow towards the light, which is necessary for photosynthesis.
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Phototropism: This is the growth or movement of a plant in response to light. Plants need light for photosynthesis, so they will grow towards a light source.
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In Roots: Roots generally show negative phototropism, as they grow away from light. This is beneficial as it helps the roots to grow deeper into the soil where they can access more water and nutrients.
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In Shoots: Shoots exhibit positive phototropism, meaning they grow towards the light. This is crucial for maximizing the amount of light the plant can capture for photosynthesis.
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Both gravitropism and phototropism are vital for a plant's survival and growth. They ensure the plant can secure the necessary resources, like light, water, and nutrients, from its environment.
Similar Questions
What is phototropism?Absorption of light energy by chlorophyllGrowth inhibited by lightGrowth stimulated by gravityGrowth stimulated by light2Which of the following statements correctly describes a plant’s response to gravity? Shoots and roots exhibit negative gravitropismShoots exhibit negative gravitropism, roots exhibit positive gravitropismShoots and roots exhibit positive gravitropismShoots exhibit positive gravitropism, roots exhibit negative gravitropism3What are the effects of the plant hormone auxin? Inhibits root and shoot growthInhibits root growth, stimulates shoot growthStimulates root and shoot growthStimulates root growth, inhibits shoot growth4When investigating the effect of light on seedling growth, which of the following is the independent variable?Number of seedsTemperatureDirection of lightDirection of growth5Which of the following best explains how the movement of auxin stimulates plant shoots to grow towards light directed at one side of the plant? Auxin is distributed evenly across the shoot, stimulating it to grow upwardsAuxin accumulates in the lit side of the shoot, stimulating the cells on this side to grow moreAuxin accumulates in the unlit side of the shoot, stimulating the cells on this side to grow moreAuxin accumulates in the unlit side of the shoot, suppressing growth of the cells on this side
In gravitropism, auxin affects the cells in shoots and roots in opposite ways. How are the two effects different?A.In stems, less auxin causes cells to shorten. In roots, more auxin causes cells to shorten.B.In stems, less auxin causes cells to strengthen. In roots, more auxin causes cells to strengthen.C.In stems, more auxin causes cells to grow wider. In roots, less auxin causes cells to grow wider.D.In stems, more auxin causes cells to grow longer. In roots, less auxin causes cells to grow longer.SUBMITarrow_backPREVIOUS
Water, sugar, and other important nutrients need to be transported from one part of a plant to another. Which statement correctly describes the interaction of the root and shoot systems during nutrient transport?Ask Studybuddy (Login to use)Group of answer choicesThe leaves take in water and sugar, which are then transported to the rest of the plant through vascular tissues.The roots take in water and sugar, which are then transported to the rest of the plant through vascular tissues.The leaves take in water and the roots produce sugar that are transported to the rest of the plant through vascular tissues.The roots take in water and the leaves produce sugar that are transported to the rest of the plant through vascular tissues
Which of the following options is the best description of the shoot system of a plant?The roots.The stems and leaves.The root hairs.The tubers.
What plant tissue located at the tips of roots and shoots will differentiate into different plant cells?
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