Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
What is passive transport? |
Transport in cells that does not require metabolic energy |
|
|
Define diffusion |
The net movement of molecules from a region where they are more highly concentrated to a region where there concentration is lower, until evenly distributed. |
|
|
The 2 proteins involved in facilitated diffusion? |
Carrier proteins Protein channels |
|
|
The 4 factors that affect rate of diffusion? |
Surface area Temperature Type of molecule Steepness of concentration gradient |
|
|
2 types of diffusion? |
Simple diffusion Facilitated diffusion |
|
|
Define Osmosis |
The movement of water from a region where it has higher water potential to a region where it has lower water potential through a selectively permeable membrane |
|
|
What is a solute? |
Any substance that is dissolved in a solvent |
|
|
What do the solvent and solute form together? |
A solution |
|
|
The water potential of pure water? |
0 |
|
|
What will happen if an animal cell is placed in pure water? And why? |
The animal cell will burst, as the pure water has a higher water potential, so water Osmoses into the cell, until it bursts |
