Diffusion, Osmosis and Active Transport Flashcards
1
Q
What substances do cells need to receive ?
A
● Oxygen
● Glucose
● Amino Acids
2
Q
What substance do cells need to receive and release?
A
● Water
3
Q
What substances do cells need to release?
A
● Carbon dioxide
● Urea
● Hormones
● Enzymes
4
Q
What is diffusion?
A
The movement of particles from an area of higher concentration to an area of lower concentration.
5
Q
What is osmosis?
A
The movement of water from a dilute solution (high water potential) to a concentrated solution (low water potential) through a partially permeable membrane.
6
Q
What is active transport?
A
The movement of molecules from a more dilute solution to a more concentrated solution against a concentration gradient, using energy from respiration.
