Quiz #5 Set 2

Question 1

How each buffer system resists pH changes

Answer 1

bicarbonate buffer system: Bicarbonate ions neutralize excess Hydrogen ions
Phosphate buffer system: additional hydroxide ions are neutralized by the dihydrogen phosphate ion.
Protein buffer system: protein compounds consume small amounts of acids or bases.

Question 2

Importance of respiratory and renal compensations in maintaining acid-base balance

Answer 2

a respiratory or renal compensation (or both) occurs in response to counteract a primary acid-base disturbance. Either through CO2 level control from respiratory system, or through the renal filtration system.

Question 3

How the kidneys regulate hydrogen and bicarbonate ion concentrations in the blood

Answer 3

their cells reabsorb bicarbonate HCO3− from the urine back to the blood and they secrete hydrogen (H+) ions into the urine

Question 4

immune functions of the skin

Answer 4

Physical barrier for foreign invaders

Question 5

how the conditions in the various body tracts discourage the growth of unwanted microbes

Answer 5

-Has antibodies
- Body fluids (ex: anti-bacterial enzymes, saliva, tears) either flush out or kill foreign invaders

Question 6

inflammation and its usefulness

Answer 6

the immune system’s response to harmful stimuli that can cause redness, swelling, heat and possible loss of functioning.

Usefulness: Prevents initial establishment of infection or remove damaged tissue