During diffusion of a substance

Osmosis is the diffusion of

The cells membrane is responsible for what enters and leaves the cell .

The only substance that we (as 7th graders) can only assume would be permeable to a cell membrane (without being told in the question) is water.

A student put a stalk of wilted celery into a glass of water. After one hour, the celery was no longer wilted. Why?

Particles move from areas of higher concentration to areas of lower concentration during

After a living cell is placed in pure water, the cell will

Most single-celled aquatic organisms use oxygen that is dissolved in water. When the oxygen concentration of the water is greater than the oxygen concentraion of the organism, oxygen passes through the cell membrane to the organism. What process ?

A cell is placed in a highly concentrated salt solution. What will happen to the cell?

Students place an egg without its shell in a concentrated sugar solution and leave it over night. Which of the following is most likely true the next day?

This may happen to animal cells when placed in pure water.

The only substance that does osmosis is ___.

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