exam 5

Question 1

Which of the following would cause a rightward shift in the oxygen-hemoglobin saturation curve?
a. increased pH
b. decreased temperature
c. increased pCO2
d. all of the above

Answer 1

increased pCO2

Question 2

The gas law which most directly explains the diffusion of gases across the blood-air barrier is called

Answer 2

Fick’s Law

Question 3

The gas law which most directly explains the partial pressures is

Answer 3

Dalton’s Law

Question 4

The gas law which most directly explains the pressure/volume inverse relationship is

Answer 4

Boyle’s Law

Question 5

The gas law which most directly explains the solubility of gases is

Answer 5

Henry’s Law

Question 6

During expiration which of the following occurs?
a. abdominal muscles relax
b. interpleural pressure does not change
c. diaphragm contracts
d. intercostal muscles relax

Answer 6

intercostal muscles relax

Question 7

During inspiration which of the following occurs?
a. abdominal muscles relax
b. interpleural pressure does not change
c. diaphragm contracts
d. intercostal muscles relax

Answer 7

diaphragm contracts

Question 8

The principle or law which explains that a low pH decreases the affinity of oxygen to hemoglobin in the tissues called:
a. Haldane effect
b. Henry’s Law
c. Fick’s Law
d. Bohr effect

Answer 8

Bohr Effect

Question 9

The principle or law which explains how Hb gaining O2 in the lungs (due to low CO2)
a. Haldane effect
b. Henry’s Law
c. Fick’s Law
d. Bohr effect

Answer 9

Haldane effect

Question 10

John is on a pure carbohydrate diet with no fat and proteins. How would this diet condition likely affect the duodenal secretions?
a. decreased secretion of cholecystokinin (CCK)
b. decreased secretion of Gastric inhibitory peptide (GIP)
c. decreased secretion of secretin
d. decreased secretion of alkaline mucus

Answer 10

A decreases secretion of cholecystokinin

Question 11

Glaucoma is caused by the build-up of ___________ in the eyeball.
a. glucose
b. advanced glycation end (AGE) products
c. sorbitol and fructose
d. plaque

Answer 11

sorbitol and fructose

Question 12

Cataracts is caused by the build-up of _____ in the eyeball.
a. glucose
b. advanced glycation end (AGE) products
c. sorbitol and fructose
d. plaque

Answer 12

AGE

Question 13

Which of the following events helps maintain the medullary osmotic gradient in the peritubular fluid?
a. tubular reabsorption of sodium and chloride ions in the ascending nephron loop
b. tubular reabsorption of urea in the papillary duct
c. tubular reabsorption of water in the descending nephron loop
d. tubular reabsorption of urea in the distal convoluted tubule

Answer 13

tubular reabsorption of urea in the papillary duct

Question 14

The chloride shift that occurs in the distal convoluted tubule and in the erythrocytes, is an example of

Answer 14

counter transport

Question 15

When there is a decrease in the glomerular filtration rate which of the following responses are most likely
to occur in autoregulation?
a. constriction of the efferent arteriole
b. constriction of the juxtaglomerular cells
c. relaxation of the macula densa
d. constriction of the afferent arteriole

Answer 15

constriction of the efferent arteriole

Question 16

When there is a drop in blood pressure or low blood volume, the conversion of angiotensinogen to
Angiotensin I would be brought about by _______________.

Answer 16

renin

Question 17

Adam decides to celebrate by going out to a nice dinner with his friends.
The blood flow in digestive tract will _______
The delicious aroma causes activation of the ____ _____.

Answer 17

increased
Vagus nerve

Question 18

Disaccharides end with -____

Answer 18

-ase

Question 19

Monosaccharides end with -____

Answer 19

-ose

Question 20

Professor Christian caught Joni dozing off and this shocked the sleepy students. Which biological processes were most likely occurring in the shocked student’s body

Answer 20

increased attentiveness
increased sweat production