Print Unscramble Letters Game: 9.4 Study Guide (biology - k6

1. prevents some substances from passing through the membrane but lets other molecules move through

E I B S L E E E P V E A L E C M Y R T L

2. Molecules that cannot freely pass through the membrane must cross through one of the ____________ embedded in it.

T N S P R O E I

3. Substances that can move into and out of a cell do so by means of either passive or active ___________.

N T R O P R A T S

4. The movement of materials through the membrane without the use of cellular energy

E R T A V P I O P S T R S S A N

5. small molecules can move freely across the cell membrane from areas of high concentration to areas of lower concentration

S F O I D N F U I

6. water crosses the cell membrane easily by ....

S I S M O S O

7. A material that enters and leaves the cell by diffusion

Y G E O N X

8. A material that enters and leaves the cell by diffusion

E B C X A I I D R O D N O

9. Molecules that cannot move through the cell membrane can diffuse through specialize protein channels in a process called...

D U I C F N L I I O E I T D S A F F T A

10. Uses cellular energy to move materials through the cell membrane

E T I R R V S P N O A T T C A

11. proteins in the cell membrane that can move small molecules from an area of lower concentration to a region of higher concentration

N P R P T R R E A O N S S T T I O

12. a type of active transport that moves materials that are too large to pass through transport proteins where the cell membrane changes shape to engulf particles

S I T N O S O Y E D C

13. Moves large materials where vacuoles fuse with the membrane to expel large particles

C T S Y O O E I S X

14. What is made of a double layer of lipids?

M B C E N A E R L M E L

15. What controls the materials that move into and out of a cell?

B L M E N M R L C E E A