Please enable JavaScript.
Coggle requires JavaScript to display documents.
3.2.3 Cellular Transport - Coggle Diagram
3.2.3 Cellular Transport
Diffusion
Simple
Small, Non-polar, lipid soluble molecules
-
Facilitated
Large, Polar, Water soluble molecules
-
-
-
Osmosis
Movement of water molecules from a high to low water potential through a semipermeable membrane without the use of additional energy input
-
-
Endocytosis
Vesicle fuses with cell membrane and releases molecules into cell. Vesicle becomes part of cell membrane.
-
Membrane
Made of phospholipids, proteins, cholesterol, glycoproteins and
-
Co-transport
E.g. Movement of glucose, amino acids into blood from illium
- 3 Sodium ions move into blood from illium cells as 2 potassium ions move into illium from blood. Creates a concentration gradient of sodium molecules between the cell and the small intestine.
- Due to a concentration gradient sodium ions move from intestine to illium cells by factilitated diffusion and brings glucose with it. This creates a higher concentration of glucose in the cells than the blood.
- Due to the concentration gradient glucose moves from illium into the blood.