Growth Control and Antimicrobial Resistance

Question 1

What does Bacteriostatic mean?

Answer 1

stopping growth/reproduction w/o disrupting the viability of cells

Question 2

What does Bacteriocidal mean?

Answer 2

stopping growth and disrupting viability of cells

Question 3

What does Bacteriolytic mean?

Answer 3

stopping growth and destroying cells

Question 4

What do Sterilants do?

Answer 4

destroy all microbial life, including spores

Question 5

What do Disinfectants do?

Answer 5

kill microbes, not always spores, for surfaces

Question 6

What does Sanitizer do?

Answer 6

reduce the total # of microbes

Question 7

What do Antiseptics and/or Germicides do?

Answer 7

kill or inhibit all microbes; safe for living tissues

Question 8

What are Macrolides?

Answer 8

antibiotics that target the 50S subunit of ribosome

Question 9

What are Tetracyclines?

Answer 9

antibiotics that inhibits functioning of 30S ribosomal subunit

Question 10

What are 5 reasons that microorganisms are naturaly resistant to certain antibiotics?

Answer 10

• lacks targeted structure
• impermeable to antibiotic
• inactivate the antibiotic
• modification of the antibiotic’s target that leads to lower affinity
• pump out the antibiotic (efflux)