Question
Give an example of diffusion across plasma membrane.
Give an example of diffusion across plasma membrane.
In amoeba, oxygen (O2) enters the cell by the process of diffusion when the level or concentration of O2 inside the cell decreases.
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Enumerate functions of plasma membrane.
Explain why, wooden (or concrete) sleepers are kept below the railway line.
Explain why, snow shoes stop you from sinking into soft snow.
During the downpour in a village, the rain water carried away excess of nitrogenous and other compounds present in the soil to a pond. How will they affect the growth of algae and phytoplankton in the pond?