Edrozo - Antibiotics and Antibiotic Resistance

Multiple Choice

Which of the following best describes the significance of antibiotic resistance?

• It makes infections easier to treat

• It can lead to longer hospital stays and higher medical costs

• It only affects animals, not humans

• It is not a concern for public health

Open Ended

Why do you think antibiotics have become such an important part of modern medicine?

Multiple Choice

Which of the following is a natural source of antibiotics?

• Penicillium (fungi)

• Bacillus (bacteria)

• Actinomyces (bacteria)

• All of the above

Open Ended

List three characteristics of an ideal antimicrobial agent and explain why each is important.

Multiple Choice

Which of the following best describes the difference between bactericidal and bacteriostatic antibiotics?

• Bactericidal antibiotics kill bacteria, while bacteriostatic antibiotics inhibit their growth.

• Bactericidal antibiotics inhibit growth, while bacteriostatic antibiotics kill bacteria.

• Both kill bacteria but only bacteriostatic inhibit growth.

• Both inhibit growth but only bactericidal kill bacteria.

Fill in the Blanks

Cell wall synthesis inhibitors like penicillins and cephalosporins inhibit the synthesis of

.

Multiple Select

Which drugs are classified as antifungal agents that alter cell membrane permeability? Select all that apply.

• Nystatin

• Amphotericin B

• Clotrimazole

• Polymyxin B

Open Ended

Explain the difference between 30S and 50S subunit inhibitors in protein synthesis inhibition, and give one example of each.

Multiple Choice

Which of the following antibiotics inhibits RNA polymerase?

• Rifampicin

• Nalidixic acid

• Trimethoprim

• Oxolinic acid

Open Ended

Explain the difference between innate (intrinsic) resistance and acquired resistance in bacteria. Provide examples of each.

Fill in the Blanks

Enzymes called β-lactamases hydrolyze

antibiotics.

Multiple Select

Which of the following are mechanisms by which bacteria can resist the effects of antibiotics?

• Drug modification/inactivation

• Reduced cellular uptake/efflux

• Target site modification

• All of the above

Fill in the Blanks

Antibiotic resistance occurs when bacteria change in response to the use of

.

Open Ended

What questions do you still have about antibiotics and antibiotic resistance after today's lesson?