Bean Osmosis Lab

Bean Osmosis Lab Questions

Learning by (seeing) osmosis | NSTAAsset 2

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Multiple Choice

Define diffusion.

• when molecules spin

• when molecules move from a high concentration to a low

• no movement

Multiple Choice

Where is there a low concentration of dye?

• at the bottom of the cup

• in the color

• at the top of cup

• there is no concentration gradient

Multiple Choice

The picture is an example of _____.

• osmosis

• diffusion

• isotonic

• active transport

Multiple Choice

Osmosis is the movement of _____ across a membrane.

• water

• energy

• food

• salt

Multiple Choice

What happened to the beans after they were placed in water?

• They lost mass.

• Their mass stayed the same.

• They gained mass.

• The beans disappeared.

Multiple Choice

If we put the beans in colored water and observed the changes after one night, explain what you think would happen to cause the color of the beans to change. 

• When you put the beans into colored water, some of the water molecules from the solution move into the beans and the beans change color.

• When you put the beans into colored water, some of the water molecules from the solution moved out of the beans and the beans change color.

Multiple Choice

After the beans were put in fresh water, they were put in salt water. There was another change in the appearance of the beans. Explain what you think caused this change.

• When you put the beans in salt water, water moved into the beans and they lost mass because the salt water is hypertonic to the beans.

• When you put the beans in salt water, water moved out of the beans and they lost mass because the salt water is hypertonic to the beans.