Passive Transport and Osmosis for test review

Front

What happens to cells when a person drinks salty water?

Back

Cells shrink due to osmosis, as water moves out of the cells to balance the solute concentration.

Front

What process is responsible for vegetables plumping up after a rain shower?

Back

Osmosis, where water moves into the vegetables, causing them to swell.

Front

What occurs to a worm placed in corn syrup, a hypertonic solution?

Back

The worm will shrivel because water moves out of the worm's cells to the surrounding solution.

Front

What regulates what enters and leaves a cell?

Back

The Cell Membrane.

Front

What is the ability of the body to maintain equilibrium despite external changes?

Back

Homeostasis.

Front

Define osmosis.

Back

Osmosis is the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration.

Front

What is a hypertonic solution?

Back

A hypertonic solution has a higher concentration of solutes compared to another solution, causing cells to lose water.

Front

What is a hypotonic solution?

Back

A hypotonic solution has a lower concentration of solutes compared to another solution, causing cells to gain water.

Front

What is an isotonic solution?

Back

An isotonic solution has the same concentration of solutes as another solution, resulting in no net movement of water.

Front

What role does the cell membrane play in passive transport?

Back

The cell membrane selectively allows certain substances to pass through while blocking others, facilitating passive transport.