'Gill cells' diaporamas de présentation

The Cell Membrane

The Cell Membrane. Purpose of the membrane. 1) Transport raw materials into the cell. 2) Transport manufactured products and wastes out of the cell. 3) Prevent the entry of unwanted matter into the cell. 4) Prevent the escape of matter needed for cellular functions. Composition.

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627 views • 21 slides

Osmoregulation

Osmoregulation. The problem of osmolarity:. salt water 35 ppt. fresh water 0-5 ppt. The problem of osmolarity:. Hyper-osmotic. salt water 35 ppt. fresh water 0-5 ppt. FISHES. Hypo-osmotic. The problem of osmolarity:. Hyper-osmotic. salt water 35 ppt. fresh water 0-5 ppt. FISHES.

265 views • 13 slides