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1. Diffusion: Diffusio- pouring out, spreading out

Definition: The tendency of the molecules of a substance to move from a region of high concentration to one of lower concentration.

Sentence: In the body oxygen, and carbon dioxide move by diffusion in the body.

2. Osmosis: Osmos- image Osis- condition

Definition: The passage of solvent through a semipermeable membrane that separates solutions of different concentrations. The solvent, usually water, passes through the membrane from the region of lower concentration of solute to that of a higher concentration of solute, thus tending to equalize the concentrations of the two solutions.

Sentence: The rate of osmosis is dependent primarily upon the differences in osmotic pressures of the solutions on the two sides of a membrane, the permeability of the membrane, and the electric potential across the membrane and the charge upon the walls of the pores in it.

3. Phagocytosis: Phago- eating, ingestion Osis- condition

Definition: A three-stage process by which phagocytes engulf and destroy microorganisms, other foreign antigens, and cell debris.

Sentence: Generally the substances in phagocytosis must be covered with osposins, such as antibodies or complement, to initiate binding with cell receptors on the phagocytes, the first stage in phagocytosis.

4. Endoplasmic reticulum: Endo- within, inner Plasm- Plasma

Definition: a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis.

Sentence: The rough endoplasmic reticulum is a series of connected flattened sacs that have many ribosomes on their outer surface.

5. Exocytosis: Exo- outward Cyte- cell Osis- condition

Definition: the transport of matter out of a living cell by the movement of a filled vacuole to the cell membrane and the extrusion of its contents

Sentence: Few of the processes...