biology gce o ’ level revision program. cells and osmosis:
Post on 02-Jan-2016
228 Views
Preview:
TRANSCRIPT
Cells and Osmosis:
Turgid Plants are erect, while flaccid ones wilt
Animal cell in solutions
“Active Transport”“The movement of particle from an area
of lower concentration to an area of higher concentration by using energy.”
Active transport is involved in a number of processes occurring within an organism
This includes the absorption of: Dissolved mineral salts by the root hairs, Glucose and amino acids by cells in the
small intestine of humans by villiFig. 2.4 Active transport-molecules diffuse against the concentration gradient from B to A.
top related