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Photosynthesis - Responses of Plants to Stress
Photosynthesis is also inhibited due to low water potential in the leaves. The leaf water potential is the sum of turgor pressure osmotic potential and matric potential. In very simple words, it represents the degree of saturation of the tissue with water. At low leaf water potentials, photosynthesis is inhibited by:
During dehydration both quantum efficiency (i.e., moles of CO2 fixed per mole of light quanta absorbed) and the rate of photosynthesis are inhibited in leaves exposed to either high or very low light intensity. This phenomenon is called photo inhibition of photosynthesis. Photo inhibition is probably caused by accumulation of excessive excitation energy at photosystem II reaction centre complex. In this way exposure to light adds to the water stress when the plant's response already would be to decrease photosynthesis.
Explain Avoidance of Shock in Nutritional Care? Loss of plasma proteins lead to decrease in blood volume (hypovolemia) and lowered red blood cell volume causing a potential dan
Like DNA RNA is a long polymer having of nucleotides joined by 3'5' phosphodiester bonds. Furthermore, there are some differences: ? The bases in RNA are adenine abbr
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Name the state in humans in which the blood cholesterol content becomes abnormally high. a) Explain vernalisation. b) Many villagers near Industrial area vary from "blue bab
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Of which main compounds is the mitochondrion structure made? Mitochondria are organelles delimited by two lipid membranes. The inner membrane invaginates to the interior of the
Q. What is ecological succession? The Ecological succession is the changing sequence of communities that live in an ecosystem during a given time period.
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Sedge-Meadow Stage - Hydrarch Favoured by an increasing amount of light, as the former occupants disappear, they gradually change the reed swamp into a sedge meadow. And now s
Define the Consequences of Obesity? Obesity has a number of adverse effects and is a risk factor for several problems as highlighted in Figure. It is a risk factor for all caus
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