Osmosis, active transport & diffusion Flashcards
1
Q
What is osmosis?
A
Higher water conc to lower conc
Partially permeable membrane
2
Q
What is active transport
A
Moves substances against their concentration gradient
Lower conc. to higher conc.
3
Q
What is diffusion
A
area of high concentration to an area of lower concentration
4
Q
Why don’t root hair cells have chloroplast
A
Root hair cells do not have the light required for photosynthesis to occur
5
Q
Why might a cell have a large projection
A
Increase surface area for absorption of minerals
6
Q
Why do root hair cells have many mitochondria
A
Active transport requires energy from mitochondria
