PLANT PHYSIOLOGY
TRANSPORT IN PLANT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Roots always grow toward the dark, and shoots (stems) grow toward the light.
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The roots grow away from the force of gravity, and the shoots (stems) grow towards gravity.
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The roots grow toward the force of gravity, and the shoots (stems) grow away.
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The plant will become a smaller version of a mature plant.
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Detailed explanation-1: -Hence, if a seed is planted upside down, it will still grow into an erect mature plant because the root will grow downwards towards gravity (positive geotropism) while the stem grows upward away from gravity (negative geotropism).
Detailed explanation-2: -(a) In response to gravity the roots of a plant always grow downwards. This phenomenon is known as geotropism.
Detailed explanation-3: -The roots grown downward in the direction of gravity, which is positive gravitropism, and the shoot grows upward away from gravity, which is negative gravitropism. The reason plants know which way to grow in response to gravity is due to amyloplasts in the plants.
Detailed explanation-4: -Well, It is a phenomenon that is called “Gravitropism". Gravitropism is either positive which means “with gravity” or negative gravitropism which means against gravity. It is said that plant and fungi both have negative gravitropism i.e. both of them grow upwards.
Detailed explanation-5: -In plants, the general response to gravity is well known: their roots respond positively, growing down, into the soil, and their stems respond negatively, growing upward, to reach the sunlight.