Question

which of the following is true of an allergic reaction?

		it is more harmful than anaphylactic shock
		it is a reaction to something that is usually not harmful
		it involves only T-cells
		it involves Immunoglobulin Z
		None of these

PROLONGED VOMITING (or diarrhea) may cause acidosis. Why is this?

		It causes the body to become sleepy
		it causes a loss of the alkaline secretions that were in the intestines
		it stimulates someone to avoid foods with acid
		it causes chronic gastric reflux

If the potassium ion concentration increases, the kidneys conserve _?_ and excrete potassium ions."

		chloride ions
		water
		soduim ions
		All of the above

Answer 1

Answer

1. Option B) It is a reaction to something that is usually not harmful

• Allergens are the substances that stimulate IgE antibodies to mediate allergic reactions.
• They are non-harmful substances.
• The symptoms include redness, rashes, itching.

2. Option B) It causes a loss of the alkaline secretions that were in the intestines

• In prolonged vomiting or diarrhea there is loss of bicarbonate secretions present in the dudenum.
• Loss of bicarbonate, lowers the pH leading to acidosis.

3. Option C) Sodium ions

• There is sodium-potassium pump in the membrane of the cells at distalconvoluted tubule
• When potassium ion concentration increases, aldosterone is released from adrenal cortex.
• It stimulates excretion of potassium and reabsorption of sodium ions.