The relative impermeability of membranes to water soluble molecules is a result of the ____
a. nonpolar nature of water
b. presence of large proteins that extend through both sides of membranes
c. presence of inorganic salt crystals scattered through some membranes
d. presence of cellulose and waxes
e. presence of phospholipids in the lipid bilayer
ANSWER: e
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The VRDL test detects ________.
A. Rickettsia B. Candida C. syphilis D. Salmonella
A nucleotide is composed of a(n) _____.
a. glycerol, a nitrogen-containing base, and a five-carbon sugar b. amino group, a nitrogen-containing base, and a five-carbon sugar c. phosphate group, a nitrogen-containing base, and a hydrocarbon d. phosphate group, a nitrogen-containing base, and a five-carbon sugar e. sulfhydryl group, a nitrogen-containing base, and a five-carbon sugar
Which of the following is true regarding glycolysis
a. it occurs in the bacterial matrix of E coli b. it occurs in the viroplasm of HIV c. it occurs in the cytoplasm of muscle cells e. its occurs in the chloroplast of spinach
Osmoregulatory adjustment via the renin-angiotensin-aldosterone system can be triggered by _____
A) sleeping for one hour B) severe sweating on a hot day C) eating a pizza with olives and pepperoni D) drinking several glasses of water