The formula used to calculate the percentage of water absorbed by raisins is (W₂ - W₁)/W1 × 100. W₂ in the formula refers to:
Amoeba acquires its food through a process termed as:
When a cell is placed in a medium, and it increases in size, then the external medium is:
Alex conducts an experiment with a de-shelled egg by placing it first in pure water and then in a concentrated salt solution. What will be the observations in each condition?
How do substances like CO₂ move in and out of the cell?
Define osmosis and explain how it differs from diffusion, providing different examples to illustrate each process.
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