Cellular Transport

Explain the mechanisms by which substances are transported into and out of cells, specifically detailing diffusion, osmosis, and active transport.
Describe diffusion as the movement of particles from an area of higher concentration to an area of lower concentration across a cell membrane.
Identify and analyze the factors affecting the rate of diffusion, including concentration gradients, temperature, and available surface area.
Describe osmosis as the diffusion of water molecules from a dilute solution to a more concentrated solution through a partially permeable membrane.
Describe active transport as the movement of substances from a lower concentration to a higher concentration, noting that this process requires energy transferred from respiration.
Relate active transport to biological examples, such as the absorption of mineral ions in plant root hairs and sugar molecules in the human gut.
Plot, draw, and interpret mathematical graphs to represent transport data, including calculating percentage gain and loss of mass.
Investigate the effect of various salt or sugar solution concentrations on the mass of plant tissue through practical experimentation.

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