Movement In And Out Of Cells

Question 1

Define diffusion

Answer 1

The net movement of ions or molecules from an area of high concentration to an area of lower concentration

Question 2

Places where diffusion takes place?

Answer 2

In the gut where digested food products move from the gut cavity into blood in capillary of villus in small intestine

Leaf
CO2 air spaces-chloroplast

Lungs
O2 air spaces-blood circulating around lungs

CO2 the other way

Question 3

Define osmosis

Answer 3

The net movement of water from an area of high water potential to an area of lower water potential through a selectively permeable membrane

Question 4

Places where osmosis takes place?

Answer 4

Takes place in all cells

Red blood cells

Question 5

Define active transport

Answer 5

The net movement of particles against a concentration gradient using energy from respiration

Question 6

Where does active transport take place?

Answer 6

Nutrients from soil into root cells