HORTICULTURE SCIENCE
PLANT BIO CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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To use when photosynthesis is not happening such as at night time or in winter.
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When photosynthesis is happening too quickly.
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When there is too much light.
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To use when photosynthesis is happening in the summer.
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Detailed explanation-1: -Glucose is easily soluble in water, therefore, plants store glucose in the form of insoluble starch in leaves, root tubers, fruits, etc. Plants utilise this stored starch as a source of energy for life activities and prepare substances that are required for their growth.
Detailed explanation-2: -Plants store energy in the form of starch, instead of glucose, because starch is insoluble. This means that starch will not effect the water concentration inside cells and also it will not move away from the storage areas within the plant.
Detailed explanation-3: -Answer and Explanation: Plants store starch because these carbohydrates are a way of preserving energy for later use. They trap glucose as part of the carbohydrate compound and break off smaller glucose units when they need to consume more energy than they readily have available through photosynthesis.
Detailed explanation-4: -Glucose is formed in the leaf very rapidly during photosynthesis and it cannot be transported to other parts of the plant with the same rapidity. So, it is converted into insoluble starch for temporary storage in the leaf.
Detailed explanation-5: -Starch is insoluble in water so won’t affect the way water moves in and out of the plant, meaning plants can store large amounts of starch in their cells. Starch molecules are very large so they cannot move out of the cell. This means they can act as energy stores.