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Cells

Test Description: The Cell in its Environment

Instructions: Answer all questions to get your test result.

1) The process by which water moves across a selectively permeable membrane is

Aosmosis Bpassive transport Cactive transport Ddiffusion

2) Molecules move by diffusion from

Aan area of low concentration to area of high Ban area of high to an area of low concentration Cbig things to little ones Dinside to outside the cell

3) The organelle most important to movement in and out of the cell is

Athe cell membrane Bthe cell wall Cthe nucleus Dthe vacuole

4) Diffusion is the process by which small molecules are

Amove across the cell membrane Bused for energy Cmade into sugars Drecycled into other organelles

5) Selective permeability means

ASome things can come in, while others can not BThat only big things can get in CThe cell makes glucose DOnly little tiny things can enter the cell

6) When your egg sat in the salt water, the cells

Abroke up, because of diffusion Bshrank, because water moved out because of osmosis Cswelled up, because of osmosis DStayed the same, because of diffusion

7) The movement of materials through a cell membrane without using energy is called

Aosmosis Bdiffusion Cpassive transport Dactive transport

8) The biggest difference between active and passive transport is

Athe cell doesn\'t need a selectively permeable membrane Bpassive transport doesn\'t require any energy, while active transport does Cactive transport doesn\'t require any energy, while passive transport does DNothing-there is no difference

9) One method of active transport requires the cell to use

Aa nucleus to plan the escape Bmitochondria as energy boosters Can endoplasmic reticulum as a transport vehicle Dproteins that work as transport vehicles

10) Another method of active transport is called

Aengulfing-the cell membrane surrounds the particle and pinches it off BProtein synthesis-the cell proteins eat up the paticle Cosmosis-water comes across the cell membrane Dresistance-the cell fights off the foreign body

*select an answer for all questions

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