Diffusion Through a Membrane Exit Ticket

Front

What does selectively permeable mean in the context of cell membranes?

Back

The cell membrane lets certain substances enter the cell and keeps certain substances out of the cell.

Front

What color indicates a negative test for glucose using Benedict's solution?

Back

Blue.

Front

Where will starch be found after 24 hours in a diffusion experiment?

Back

Inside the cell, only.

Front

What color does the starch indicator turn when it comes in contact with starch?

Back

Blue-black.

Front

Which test requires placing test tubes into a hot water bath?

Back

Benedict's Test.

Front

What is the primary function of a cell membrane?

Back

To regulate the movement of substances in and out of the cell.

Front

What is diffusion?

Back

The movement of molecules from an area of higher concentration to an area of lower concentration.

Front

What is osmosis?

Back

The diffusion of water across a selectively permeable membrane.

Front

What is the role of glucose in cellular respiration?

Back

Glucose is a primary energy source for cells.

Front

What happens to a cell in a hypertonic solution?

Back

The cell will lose water and shrink.