1. Transport VOCAB ONLY

2. An INTEGRAL MEMBRANE PROTEIN that moves molecules PASSIVELY across cell membranes by attaching, CHANGING SHAPE, and flipping to the other side like a revolving door Carrier protein A state that exists when the CONCENTRATION of a substance IS THE SAME throughout a space equilibrium http://bio.winona.edu/berg/ANIMTNS/Directry.htm

3. Kind of endocytosis used to take in large particles or whole cells. phagocytosis The DIFFUSION of WATER across a semi-permeable MEMBRANE osmosis

4. The pressure of water pushing against the cell wall in a plant cell is called ________________ pressure. LABEL THE DIAGRAMS: osmotic HYPERTONICHYPOTONICISOTONIC

5. Solution in which the solute concentration outside the cell is LESS than inside hypotonic Movement of molecules ACROSS a cell membrane from an area of LOWER concentration to HIGHER concentration using ENERGY Active transport

6. The swelling and bursting of an animal cell when placed in a HYPOTONIC solution cytolysis An INTEGRAL MEMBRANE PROTEIN that provides a passageway/tunnel across the cell membrane through which WATER molecules can diffuse PASSIVELY during osmosis Aquaporins http://www.spps.kvl.dk/news/0507/Lund4.jpg

7. Solution in which the solute concentration outside the cell is greater than inside hypertonic Molecule used by cells to provide energy for active transport ATP

8. Solution in which the solute concentration outside and inside a cell are EQUAL isotonic Sodium-potassium pump Kind of active transport that can move sodium and potassium ions quickly AGAINST the concentration gradient

9. A process in which the cell membrane surrounds and engulfs substances and pulls them into the cell endocytosis

10. An INTEGRAL MEMBRANE PROTEIN that provides a passageway/tunnel across the cell membrane through which IONS can diffuse PASSIVELY Ion channel

11. A membrane that lets certain molecules pass through and not others is called _______________ Semi-permeable OR selectively permeable Image from: http://www.d.umn.edu/~sdowning/Membranes/membraneImages/jpegimages/diffusionmedium.jpg

12. A process in which a VESICLE inside a cell fuses with the cell membrane and releases its contents OUTSIDE the cell EXOCYTOSIS http://www.estrellamountain.edu/faculty/farabee/biobk/BioBooktransp.html

13. iodine Substance that turns blue-black when it reacts with starch

14. ___________ transport does NOT require energy to move molecules across membranes. Passive The process by which molecules MOVE from an area of HIGHER concentration to an area of LOWER concentration diffusion http://www.estrellamountain.edu/faculty/farabee/biobk/BioBooktransp.html

15. The shrinking away of the cell membrane from the cell wall in a plant cell when placed in a HYPERTONIC environment plasmolysis Organelle that uses exocytosis to transport molecules out of the cell Golgi (body) apparatus

16. A small membrane bound sac in a eukaryotic cell used to transport substances around within a cell or during exocytosis or endocytosis The shrinking of animal cells when placed in a hypertonic solution is called ______________ vesicle crenation

17. Organelle that makes the ATP used to run active transport? mitochondria Type of endocytosis in which cells take in small molecules or fluids pinocytosis

18. mass of a dissolved substance in a given volume concentration The difference in the concentration of molecules across a space Concentration gradient Image by Riedell

19. Solution in which the solute concentration outside and inside the cell is equal isotonic A MEMBRANE PROTEIN that uses energy to ACTIVELY transport hydrogen ions (H+) across a cell membrane PROTON PUMP

20. Process that REQUIRES ENERGY to move molecules across a cell membrane against a concentration gradient (moves molecules from lower concentration → higher concentration) Active transport Movement of specific molecules across cell membranes with the help of protein channels and carriers Facilitated diffusion Animations from: http://bio.winona.edu/berg/ANIMTNS/facdifan.gif http://www2.uic.edu/~myilma1/ionchannel.gif