Homework Answers
73. Antimicrobial drugs are used to treat infectious diseases and disorders by killing the bacteria. Antimicrobial drugs include different classes of drugs :
1. Antibacterial
2. Disinfectant
3. Antibiotic
4. Antifungal
antimicrobial drugs act by inhibiting bacterial growth and killing the bacteria through following mechanism:
- Inhibiting Cell wall synthesis
- Inhibiting protein synthesis
- Destroying the bacteria through cytoplasmic membrane permeability
- Inhibiting nucleic acid synthesis
- anti metabolic.
So the answer is a) killing the bacteria
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73) All antimicrobial drugs act by: a) killing bacteria b) inhibiting protein synthesis c) stopping cell...
1) Antimicrobial X targets a specific protein in the cytoplasm of the bacterial cell, causing the...
1) Antimicrobial X targets a specific protein in the cytoplasm of the bacterial cell, causing the bacteria to stop growing, but does not kill them. A few bacteria start to grow in the presence of antibiotic X. Analysis of the bacteria that can now grow shows that they have changed the shape of the target for antimicrobial X. What conclusion can be made? a) The change in shape of the target for antimicrobial X had no effect on the effectiveness...
Describe the modes of action of antimicrobial drugs (ie: cell membrane, cell wall, protein synthesis, etc)....
Describe the modes of action of antimicrobial drugs (ie: cell membrane, cell wall, protein synthesis, etc). Please provide an example drug for each. (USLO 9.1) 9
There are more antimicrobial agents that target bacteria than there are antimicrobial agents that target protozoans,...
There are more antimicrobial agents that target bacteria than there are antimicrobial agents that target protozoans, helminths and and fungi because a. bacteria are more infectious b. there are more bacterial cellular targets for antimicrobials c. parasites share many characteristics with human cells and selective drug toxicity is difficult to achieve d. parasites are only found inside human cells e. none of the above
Antimicrobial Review: Match the antibiotic with the mode of ACTION. Antimicrobial Group Effect on bacteria __...
Antimicrobial Review: Match the antibiotic with the mode of ACTION. Antimicrobial Group Effect on bacteria __ Fluoroquinolones, Rifampin __ Aminoglycosides, Tetracycline __ β‐Lactams __ Polymixins __ Sulfonamides, Trimethoprim A. Inhibit cell wall synthesis B. Inhibit protein synthesis C. Disrupts metabolic processes D. Disruption of cell membrane E. Inhibit DNA synthesis
Which of the following classes of antimicrobial drugs inhibits protein synthesis? Select ALL correct answers --...
Which of the following classes of antimicrobial drugs inhibits protein synthesis? Select ALL correct answers -- there is more than one! Aminoglycosides Oxazolidinones Nitroimidazoles Chloramphenicol Pyrazinamides Fluoroquinolones
When the term parenteral is used in regards to drug administration, this applies to drugs administered...
When the term parenteral is used in regards to drug administration, this applies to drugs administered _____ (choose all that apply). Select one or more: a. intravenously b. orally c. intramuscularly d. topically Protein synthesis occurs in all living cells. Why, then, are some antimicrobial drugs that target protein synthesis selectively toxic to bacteria? Select one: a. The protein synthesis in human cells occurs less frequently than that in bacterial cells. b. The ribosomes found in human cells and those...
Beta-lactams target... a. Protein synthesis (50S subunit) b. RNA synthesis c. Protein synthesis (30S subunit) d....
Beta-lactams target... a. Protein synthesis (50S subunit) b. RNA synthesis c. Protein synthesis (30S subunit) d. Cell wall synthesis
Zithromycin inhibits protein synthesis in bacteria. However, it cannot cross gram-negative bacteria cell walls. Would you expect zithromycin...
Zithromycin inhibits protein synthesis in bacteria. However, it cannot cross gram-negative bacteria cell walls. Would you expect zithromycin to be broad or narrow spectrum? Why? Amphotericin B disrupts the plasma membrane by binding to sterols. Why can’t it be used to treat bacterial infections? Match the following processes with the statements listed below. (Answers may be used more than once.) a. transcription b. translation c. DNA replication Ciprofloxacin inhibits DNA helicase. Which process is inhibited? _______________ RCT is a nucleotide substitute for uracil. Which process is inhibited? ___________ Tetracycline...
The ribosome in a cell is the site of: a. protein synthesis b. ATP formation c....
The ribosome in a cell is the site of: a. protein synthesis b. ATP formation c. lipids and steroid molecule synthesis d. intracellular digestion
Sms require small quantities of this nutrient for enzyme function and maintenance of protein structure: a)...
Sms require small quantities of this nutrient for enzyme function and maintenance of protein structure: a) element b) macronutrients c) growth factor d) hormones e) trace element B. True (A) or False (B) (10 points) __ 31. Both base substitution and frameshift mutations can result in the formation of premature stop codons. 32. Synthesis of a repressible enzyme is stopped by the substrate binding to the repressor. 33. Gold and silver are metals that have antimicrobial properties associated with them....
Sms require small quantities of this nutrient for enzyme function and maintenance of protein structure: a) element b) macronutrients c) growth factor d) hormones e) trace element B. True (A) or False (B) (10 points) __ 31. Both base substitution and frameshift mutations can result in the formation of premature stop codons. 32. Synthesis of a repressible enzyme is stopped by the substrate binding to the repressor. 33. Gold and silver are metals that have antimicrobial properties associated with them....
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