Cellular Transport Flashcards
1
Q
What is PASSIVE transport
A
- Passive transport is when particles move from an area of high concentration to an area of low concentration.
- No energy is needed
- Moves across a semi permeable membrane
2
Q
What is ACTIVE transport
A
- Active transport is when particles move from an area of low concentration to an area of high concentration.
- It does require energy
- Moves across a semipermeable membrane.
3
Q
What is DIFFUSION
A
-The movement of particles across the semipermeable membrane from an area of high concentration to a low concentration. It does not need energy
4
Q
What is FACILITATED transportation
A
-The movement of particles with the help of proteins across a semipermeable membrane from an area of high concentration to a low concentration.
5
Q
What is OSMOSIS
A
- The movement of water across the semipermeable membrane from an area of high concentration to a low concentration.
- Water keeps moving until the ratio of solvent (particles) to solute (water) the same.
6
Q
An example of ACTIVE transport
A
Sodium potassium pump- The particles are moving against a concentration gradient, which is an area of low concentration to high concentration, which is why energy (ATP) is needed as it helps them do this process.