Required Practical: Factors Affecting Membrane Permeability The permeability of cell membranes is affected by different factors or conditions, such as: Temperature Solvent concentration &nbs...
Explaining Adaptations in Specialised Cells Specialised cells for diffusion Root hair cells and epithelial cells of the small intestine are examples of cells that are adapted for the rapid t...
Adaptations for Rapid Transport The rate at which diffusion (including both simple diffusion and facilitated diffusion) occurs across external and internal cell membranes varies Some cells a...
The Process of Active Transport & Co-transport Active transport is the movement of molecules and ions through a cell membrane from a region of lower concentration to a region of higher c...
Required Practical: Investing Water Potential Using Calibration Curves It is possible to investigate the effects of immersing plant tissue in solutions of different water potentials and then...
Osmosis in Cells: Comparison Comparing & Contrasting the Movement of Water by Osmosis in Plant & Animal Cells Table 转载自savemyexams
Osmosis: Animal Cells Osmosis is the net movement of water molecules from a region of higher water potential (dilute solution) to a region of lower water potential (concentrated solution), t...
Osmosis: Plant Cells Osmosis is the net movement of water molecules from a region of higher water potential (dilute solution) to a region of lower water potential (concentrated solution), th...
The Process of Osmosis All cells are surrounded by a cell membrane which is partially permeable Water can move in and out of cells by osmosis Osmosis is the diffusion of water molecules from...
