Question

Cytotoxic T lymphocytes and natural killer cells identify their targets by different mechanisms but kill them using the same mechanisms.

Select one:

True

False

If the parathyroid glands were removed due to a cancerous growth, which of the following ions would be insufficiently reabsorbed by the kidneys?

Select one:

A. calcium ions

B. potassium ions

C. chloride ions

D. sodium ions

Which of the following are functions of the blood plasma and its contents (not including formed elements)? Select all that apply.

Select one or more:

A. Transport hormones.

B. Transport metal ions.

C. Maintain colloid osmotic pressure.

D. Transport nutrients absorbed from the digestive tract.

E. Participate in coagulation.

F. Participate in the immune response.

G. Buffer the blood pH.

H. Transport respiratory gases.

Fertilization occurs in the uterus.

Select one:

True

False

Generally, the hormones secretin and cholecystokinin which are released by duodenal enteroendocrine cells will ________. Select ALL that apply.

Select one or more:

A. increase the rate stomach emptying

B. decrease gastric secretion

C. stimulate contraction of the gallbladder

D. increase the output of pancreatic juice

While suffering an acute panic attack, Trista begins to hyperventilate causing ________________.

Select one:

A. metabolic alkalosis

B. metabolic acidosis

C. respiratory acidosis

D. respiratory alkalosis

Answer 1

1. True

Explanation:  the processes of killing are similar for Cytotoxic T Lymphocytes and NK cells, CTL lytic activity is acquired only after activation and differentiation, whereas NK cells can spontaneously kill target cells without prestimulation.

2. A. calcium

Explanation: parathyroid hormone increases the calcium absorption by the kidney directly and indirectly via synthesis of vitamin D

3.

A. Transport hormones.

B. Transport metal ions.

C. Maintain colloid osmotic pressure.

D. Transport nutrients absorbed from the digestive tract.

G. Buffer the blood pH.

4. False

explanation: fertilization occurs in fallopian tube

5.

A. increase the rate stomach emptying

C. stimulate contraction of the gallbladder

D. increase the output of pancreatic juice

6. D. respiratory alkalosis