Penicillin affects bacterial cell metabolism by targeting O DNA and RNA synthesis O protein synthesis O...
Penicillin is an enzyme-inhibiting antibiotic that kills bacteria by suppressing the synthesis of bacterial cell walls. The bacterial cell wall is made of cross-linked peptidoglycan, which is synthesized from peptidoglycan monomers by transpeptidase enzymes. How does penicillin suppress the synthesis of bacterial cell walls? O Penicillin binds to the cross-linked peptidoglycan, preventing further bacterial cell wall growth. Penicillin signals the bacterial cell to stop producing the transpeptidase enzymes. Penicillin binds to the transpeptidase enzymes, preventing the synthesis of cross-linked peptidoglycan....
Label the image to review major targets of drugs acting on bacterial cells. Cephalosporins Protein synthesis inhibitors acting on ribosomes Cell membrane Sulfonamides (sulfa drugs) Cell wall inhibitors Penicillins Polymyxins Erythromycin Aminoglycosides Quinolones Folic acid synthesis DNA/RNA Rifampin
Which drug works by disrupting synthesis of the bacterial cell wall? Multiple Choice sulfonamide penicillin polymixin tetracycline
Of the six categories of inhibition, (inhibition of cell wall synthesis, inhibition of protein synthesis, disruption of cytoplasmic membrane, inhibition of general metabolic pathway, inhibition of DNA or RNA synthesis, or inhibition of pathogens attachment or entry into host cell) which would be effective against viruses? Which would be practical to use?
Beta-lactams target... a. Protein synthesis (50S subunit) b. RNA synthesis c. Protein synthesis (30S subunit) d. Cell wall synthesis
Which best represents the flow of information in a cell (from recipe to function)? A Protein--RNA--DNA B RNA--DNA--Protein C DNA--RNA--Protein
Part A What are three observations that suggested eukaryotic RNA was an intermediate between DNA and protein? Select the three observations. O DNA plays the major role in replication, which allows for sustainable transfer of genetic information. O RNA is transported out of the nucleus and into the cytoplasm where protein translation occurs. Three types of RNA are found in the cell, and all of them are involved in protein synthesis. O DNA is found in the nucleus and protein...
Chapters 7, 8, 9 - Bacterial Growth & Metabolism (some chapter sections will be covered in lab) Prerequisite: Basic catabolic pathways (respiration and fermentation) and anabolic reactions (photosynthesis) BACTERIAL GROWTH AND CONTROL- Some of these topics will be covered in greater detail during lab Environmental Growth Factors 1. Discuss the specific role of quorum sensing in biofilm formation Control of Microbial Growth 2. Describe the methods used to control microbial growth 3. List the types of antibiotics that inhibit (a)...
The bactericidal antibiotic penicillin kills bacterial cells by preventing peptidoglycan (cell wall) biosynthesis. Which of the following phases of the bacterial growth curve would you expect penicillin to be most active against?
In a eukaryotic cell, if DNA is stored in the nucleus and protein synthesis occurs in the cytoplasm, then how does the information in DNA become functional (i.e. processed into protein)?