SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cells located in a leaf need more sunlight for respiration.
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Cells located in a leaf need more sunlight for transpiration.
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Cells located in a leaf need more sunlight for photosynthesis.
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Cells located in a leaf need more sunlight for protein synthesis.
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Detailed explanation-1: -In leaves, cells in the mesophyll (the tissue between the upper and lower epidermis) are uniquely suited to carry out photosynthesis on a large scale. This is due to their high concentration of chloroplasts, which are the sites of photosynthesis. More chloroplasts means more photosynthetic capability.
Detailed explanation-2: -They capture the sun’s energy with the help of chlorophyll in the leaf cells. The chlorophyll traps and packages the energy from the light of the sun in a process called photosynthesis. Leaves usually have a large surface so they can collect the most sunlight.
Detailed explanation-3: -There are several chloroplasts in a plant cell to maximize photosynthesis. Chloroplasts are the organelles which capture light in a plant cell and carry out photosynthesis. Having many of them in the plant cell ensures that more light energy is used to make sugars thus maximizing the plant’s productivity.
Detailed explanation-4: -Having more pigments means more sunlight being captured and trapped, hence facilitating an effective light reaction. The additional pigments would provide protection to the chlorophyll molecule against photo-oxidation.