Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chap5_Cell_Transport
Vocab from Holt Modern Biology Chapter 5: Homeostasis and Cell Transport
| Question | Answer |
|---|---|
| The process by which substances can cross the cell membrane without any input or energy | Passive transport |
| The movement of molecules from an area of higher concentration to an area of lower concentration | Diffusion |
| The difference in the concentration of molecules across a distance | Concentration gradient |
| The concentration of molecules is the same throughout the space the molecules occupy | Equilibrium |
| The process by which water molecules diffuse across a cell membrane from an area of higher concentration to an area of lower concentration | Osmosis |
| When the concentration of solute molecules outside the cell is lower than the concentration in the cytosol | Hypotonic |
| When the concentration of solute molecules outside the cell is higher than the concentration in the cytosol | Hypertonic |
| When the concentration of solutes outside and inside the cell are equal | Isotonic |
| Organelles that remove water in organisms like Paramecium | Contractile vacuole |
| The pressure that water molecules exert against the cell wall | Turgor pressure |
| When cells shrink away from the cell wall due to a hypertonic environment | Plasmolysis |
| The bursting of cells due to a hypotonic environment | Cytolysis |
| The process in which movement of large molecules across the cell membrane is assisted by specific proteins in the membrane | Facilitated diffusion |
| Proteins which assist the diffusion of large molecules across the cell membrane | Carrier proteins |
| Membrane proteins that transport ions from higher to lower concentrations | Ion channels |
| Movement of materials from an area of lower concentration to an area of higher concentration | Active transport |
| A protein that transports Na+ and K+ up their concentration gradients | Sodium-potassium pumps |
| The process by which cells ingest external fluid, macromolecules and large particles | Endocytosis |
| A membrane-bound organelle formed from a pinched off section of the cell membrane | Vesicle |
| A form of endocytosis which involves the transport of solutes or fluid | Pinocytosis |
| A form of endocytosis which involves the movement of large particles or whole cells | Phagocytosis |
| Cells which use phagocytosis to ingest bacteria and viruses that invade the body | Phagocytes |
| The process by which a substance is released from the cell through a vesicle that transports it to the cell surface and fuses with the membrane to let the substance out of the cell | Exocytosis |
Created by:
SavioScience
Popular Biology sets