Author Question: Compare and contrast diffusion versus osmosis. What will be an ideal ... (Read 114 times)

jace · **on:** Jun 25, 2018

Compare and contrast diffusion versus osmosis.

What will be an ideal response?

Question 2

What are the four types of hypersensitivity? Give an example for each.

What will be an ideal response?

Liddy · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

Diffusion is the passage of dissolved particles or solute from a more concentrated to a more dilute solution; osmosis is the movement of water molecules from a dilute to a more concentrated solution.

Answer to Question 2

1 . Immediate hypersensitivity. Localized response: hay fever, food allergy; systemic response: bee sting, penicillin anaphylaxis
2 . Cytotoxic hypersensitivity reactions. Blood transfusion reactions, Rh hemolytic disease, autoimmune hemolytic anemia
3 . Immune complex disease. Some types of glomerulonephritis; lupus erythematosus; rheumatoid arthritis
4 . Delayed (cell-mediated) hypersensitivity. Tuberculosis; fungus and parasitic infections; contact dermatitis