LABORATORY REVIEW
DIFFUSION AND OSMOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Carbon dioxide diffuses into the cell because the concentration of carbon dioxide is higher outside the cell than inside the cell.
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Carbon dioxide diffuses out of the cell because the concentration of carbon dioxide is higher outside the cell than inside the cell.
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Carbon dioxide diffuses into the cell because the concentration of carbon dioxide is lower outside the cell than inside the cell.
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Carbon dioxide diffuses out of the cell because the concentration of carbon dioxide is lower outside the cell than inside the cell
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Detailed explanation-1: -Choice (c) is correct. The products of cellular respiration are carbon dioxide and water, which are the raw materials for photosynthesis.
Detailed explanation-2: -Plants use up carbon dioxide during photosynthesis. The concentration of carbon dioxide inside a leaf is therefore low during photosynthesis. The higher concentration of carbon dioxide in the air around the plant causes the gas to move into the leaf by diffusion. It diffuses through small pores called stomata.
Detailed explanation-3: -Carbon dioxide transportation into the leaves occurs by the process of diffusion. Diffusion helps in the movement of carbon dioxide molecules from the atmosphere having a higher concentration of carbon dioxide into the leaves with a lower concentration of carbon dioxide.
Detailed explanation-4: -During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.