PLANTS
PLANT RESPONSES TO STIMULI
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A plant that is wilting
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A plant that has big leaves
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A plant that has little water in the vacuoles
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A plant that is strong and standing tall
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Detailed explanation-1: -The action of turgor pressure on extensible cell walls is usually said to be the driving force of growth within the cell. An increase of turgor pressure causes expansion of cells and extension of apical cells, pollen tubes, and other plant structures such as root tips.
Detailed explanation-2: -turgor, Pressure exerted by fluid in a cell that presses the cell membrane against the cell wall. Turgor is what makes living plant tissue rigid. Loss of turgor, resulting from the loss of water from plant cells, causes flowers and leaves to wilt.
Detailed explanation-3: -Turgor pressure plays a significant role in the promotion of plant growth (Pan, 2001; Pan and Dong, 1995). One significant function of the turgor pressure is to promote cell volume expansion (Kazuyuki et al., 1997), and the higher the turgor pressure is, the larger the leaf expansion will be (Liu et al., 2002).
Detailed explanation-4: -When the cells are placed in a hypotonic solution (higher water potential or dilute solution as compared to the cytoplasm), water diffuses into the cell causing the cytoplasm to build up a pressure against the wall, that is called turgor pressure.