Microbiology Chapter 10 (Test Bank)
Substances that are naturally produced by certain microorganisms that can inhibit or destroy
other microorganisms are called
A. antibiotics.
B. narrow-spectrum drugs.
C. semisynthetic drugs.
D. synthetic drugs.
E. broad-spectrum drugs. - correct answer A
Antimicrobials that are effective against a wide variety of microbial types are termed
A. antibiotics.
B. narrow-spectrum drugs.
C. semisynthetic drugs.
D. synthetic drugs.
E. broad-spectrum drugs. - correct answer E
Antibiotics are derived from all of the following except
A. Penicillium.
B. Bacillus.
C. Staphylococcus.
D. Streptomyces.
E. Cephalosporium. - correct answer C
Important characteristics of antimicrobial drugs include
,Microbiology Chapter 10 (Test Bank)
A. low toxicity for human tissues.
B. high toxicity against microbial cells.
C. do not cause serious side effects in humans.
D. stable and soluble in body tissues and fluids.
E. All of the choices are correct. - correct answer E
The use of a drug to prevent a person at risk of an imminent infection is called
A. competitive inhibition.
B. synergism.
C. prebiotics.
D. prophylaxis.
E. lantibiotics. - correct answer D
The use of any chemical in the treatment, relief, or prophylaxis of a disease is called
A. prophylaxis.
B. chemotherapy.
C. selective toxicity.
D. nephrotoxicity.
E. synergism. - correct answer B
, Microbiology Chapter 10 (Test Bank)
Penicillins and cephalosporins
A. block folic acid synthesis.
B. attach to the 30S ribosomal subunit and disrupt protein synthesis.
C. damage cell membranes.
D. block peptidases that cross-link glycan molecules. - correct answer D
Selective toxicity refers to
A. damage to pathogenic organisms.
B. damage to prokaryotic cell membranes.
C. damage to the target organisms but not host cells.
D. damage to nucleic acids.
E. None of the choices is correct. - correct answer C
Each of the following affect cell walls except
A. penicillin.
Substances that are naturally produced by certain microorganisms that can inhibit or destroy
other microorganisms are called
A. antibiotics.
B. narrow-spectrum drugs.
C. semisynthetic drugs.
D. synthetic drugs.
E. broad-spectrum drugs. - correct answer A
Antimicrobials that are effective against a wide variety of microbial types are termed
A. antibiotics.
B. narrow-spectrum drugs.
C. semisynthetic drugs.
D. synthetic drugs.
E. broad-spectrum drugs. - correct answer E
Antibiotics are derived from all of the following except
A. Penicillium.
B. Bacillus.
C. Staphylococcus.
D. Streptomyces.
E. Cephalosporium. - correct answer C
Important characteristics of antimicrobial drugs include
,Microbiology Chapter 10 (Test Bank)
A. low toxicity for human tissues.
B. high toxicity against microbial cells.
C. do not cause serious side effects in humans.
D. stable and soluble in body tissues and fluids.
E. All of the choices are correct. - correct answer E
The use of a drug to prevent a person at risk of an imminent infection is called
A. competitive inhibition.
B. synergism.
C. prebiotics.
D. prophylaxis.
E. lantibiotics. - correct answer D
The use of any chemical in the treatment, relief, or prophylaxis of a disease is called
A. prophylaxis.
B. chemotherapy.
C. selective toxicity.
D. nephrotoxicity.
E. synergism. - correct answer B
, Microbiology Chapter 10 (Test Bank)
Penicillins and cephalosporins
A. block folic acid synthesis.
B. attach to the 30S ribosomal subunit and disrupt protein synthesis.
C. damage cell membranes.
D. block peptidases that cross-link glycan molecules. - correct answer D
Selective toxicity refers to
A. damage to pathogenic organisms.
B. damage to prokaryotic cell membranes.
C. damage to the target organisms but not host cells.
D. damage to nucleic acids.
E. None of the choices is correct. - correct answer C
Each of the following affect cell walls except
A. penicillin.
