BIOLOGY
HORMONES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the balance of cytokinins within the plant body
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the internal balance of sucrose within the plant body
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the balance of auxins and cytokinins within the plant body
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the internal water balance within the plant body
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Detailed explanation-1: -Cytokinins (CK) are a class of plant hormones that promote cell division, or cytokinesis, in plant roots and shoots. They are involved primarily in cell growth and differentiation, but also affect apical dominance, axillary bud growth, and leaf senescence.
Detailed explanation-2: -When the stem grows against the force of gravity (upwards), this is known as a negative gravitropism. When a root grows in the direction of the force of gravity (downwards), this is known as a positive gravitropism.
Detailed explanation-3: -Apical dominance is the phenomenon in which the growing terminal buds inhibit the auxiliary bud growth that results in less branching and vertical growth of the plant. The growing apical bud or terminal bud produces the hormone auxin which is transported to the auxiliary buds by the phloem.
Detailed explanation-4: -Plants have evolved a wide variety of responses that allow them to adapt to the variable environmental conditions in which they find themselves growing. One such response is the phototropic response-the bending of a plant organ toward (stems and leaves) or away from (roots) a directional blue light source.