1) natriuretic peptides promote sodium and potassium excretion.
2) albinism is the genetic lack of melanin that results in a milky white coloration of the
skin.
3) somatic reflexes are responses of skeletal, smooth, and cardiac muscles.
4) the thick segment of the nephron loop is impermeable to water.
5) _____________ is the process in which ____________ forces water and small
solutes, such as salts, through narrow clefts between capillary cells.
a. filtration; hydrostatic pressure
b. osmosis; hydrostatic pressure
c. active transport; osmotic pressure
d. active transport; hydrostatic pressure
e. osmosis; osmotic pressure
6) an inhibitory local potential causes which of the following?
a. depolarization ofthe plasma membrane
b. hyperpolarization ofthe plasma membrane
c. repolarization of the plasma membrane
d. neutralization ofthe plasma membrane
e. drifting ofthe membrane potential towards the resting membrane potential
7) emphysema can lead to which of the following?
a. metabolic acidosis
b. metabolic alkalosis
c. respiratory alkalosis
d. respiratory acidosis
e. digestive alkalosis
8) which of these conditions is not a result of hyperkalemia?
a. cells are more excitable.
b. the resting membrane potential is more negative.
c. the cells are partially depolarized.
d. the cells are more sensitive to stimulation.
e. there is less diffusion of potassium out of the cells.
9) which cellsaid in the body’s defense processes by secreting histamine and heparin?
a. eosinophils
b. basophils
c. neutrophils
d. platelets
e. monocytes
10) the transition from an afferent arteriole to an efferent arteriole occurs in the
__________.
a.glomerulus
b.medulla
c.cortical radiate veins
d.peritubular capillaries
e.vasa recta
11) __________ happens in the cytoplasm, whereas __________ happens in the
mitochondrion.
a. the citric acid (krebs) cycle; mitochondrial electron-transport
b. aerobic respiration; anaerobic fermentation
c. glycolysis; the citric acid (krebs) cycle
d. anaerobic fermentation; glycolysis
e. glycolysis; pyruvic acid reduction
12) after translation, a protein may undergo structural changes called __________
modifications.
a. splicing
b. posttranscriptional
c. posttranslational
d. polyribosomal
e. secretory
13) nucleic acids are __________ of __________.
a.monomers; monosaccharides
b.monomers; atp
c.polymers; nucleotides
d.polymers; camp
e.polymers; dna
14) infants have __________ deciduous teeth, whereas adults have __________
permanent teeth.
a. 20; 32
b. 16; 20
c. 28; 20
d. 32; 20
e. 32; 32
15) obstruction of the ___________ will cause a more severe myocardial infarction
(mi) than the obstruction of any of the others.
a. left marginal vein
b. left coronary artery (lca)
c. posterior interventricular vein
d. anterior interventricular branch
e. circumflex branch