PLANT PHYSIOLOGY
PLANT MOVEMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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dense amyloplasts, organelles that synthesize and store starch involved in the perception of gravity by the plant.
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a plant hormone, and help to regulate the differential growth of a plant organ, causing the plant to curve or bend in response to stimulus
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specialized plastid containing dense starch grains, to the lower portions of cell
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None of the above
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Detailed explanation-1: -Auxin promotes cell division and meristem maintenance and also plays an important role in the establishment of cellular patterning. Plant development thus integrates the regulation of cell proliferation and growth with further cell expansion and differentiation.
Detailed explanation-2: -Auxin is a key regulator of plant growth and development, orchestrating cell division, elongation and differentiation, embryonic development, root and stem tropisms, apical dominance, and transition to flowering.
Detailed explanation-3: -Auxins are a powerful growth hormone produced naturally by plants. They are found in shoot and root tips and promote cell division, stem and root growth. They can also drastically affect plant orientation by promoting cell division to one side of the plant in response to sunlight and gravity.
Detailed explanation-4: -Auxins are growth hormones produced by plants. They are essential for proper growth of the plant and cell elongation. They also regulate phototropism, geotropism, and hydrotropism in plants.
Detailed explanation-5: -Auxins are a group of naturally occurring and artificially synthesised plant hormones. They play an important role in the regulation of plant growth. Auxins were initially isolated from human urine. Auxin means to “enlarge” or “increase”. They induce cell division, differentiation and elongation.