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Osmosis And Diffusion

Test Description: Review of the basics for 7th grade

Instructions: Answer all questions to get your test result.

1) Movement of particles from high to low concentration is

Adiffusion Bfiltering Ccell transport Dosmosis

2) A membrane that allows only certain substances to pass through

Abiomembrane Bosmotic membrane Cselectively permeable Ddiffusable

3) Diffusion of water through a selectively permeable membrane

Asoaking Bspreading Cabsorbing Dosmosis

4) Builds up inside a plant cell placed in pure water

Asalt Bplasmolysis Cdiffusion pressure Dturgor pressure

5) When the contents of a plant cell shrivel due to water loss

Ashrinking Bplasmolysis Ccytolysis Dturgor pressure

6) An animal cell placed in 100% water will

Astay the same Bundergo plasmolysis Cshrivel Dswell and burst

7) When the concentration of water inside and outside the cell is the same

Aosmosis Bstatic condition Csaturation Dequilibrium

8) An animal cell placed in salt water will

Aburst Bswell Cshrivel Ddo nothing

9) Which is not a reason why diffusion is important?

AIt is how messages get from our senses to our brain Bit is how oxygen gets from our lungs to our blood CIt is how nutrients get from our intestines into our blood DIt is how water gets from soil into roots

10) Increasing temperature does which of the following to the rate of diffusion?

Aslows it down Bstops it Cspeeds it up Dnothing

*select an answer for all questions

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