Bacterial Classification and Antibiotics Quiz

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What are MRSA and Staphylococcus aureus examples of in the given text?

Gram-positive bacteria (correct)

Bacteria susceptible to penicillin

Gram-negative bacteria

Bacteria releasing endotoxins

Which antibiotics work on both gram-positive and gram-negative bacteria according to the text?

Tetracycline (correct)

Penicillin

Escherichia coli

MRSA

What is the most common sexually transmitted infection, as per the given text?

MRSA

Staphylococcus aureus

TB

Chlamydia (correct)

How is TB (mycobacteria) identified using staining, based on the information provided?

By remaining red despite exposure to acid Signup and view all the answers

What is the main purpose of the test mentioned in the text?

To see if tuberculosis (TB) is present Signup and view all the answers

What are the proteins responsible for producing proteins inside cells?

Ribosomes Signup and view all the answers

What fluid is referred to as gelatinous in the text?

Cytoplasm Signup and view all the answers

Which bacteria does the text describe as having a sugar coating on the outside?

Gram-positive bacteria Signup and view all the answers

What is the term used interchangeably with 'cell wall' in the text?

Peptidoglycan Signup and view all the answers

What feature helps distinguish gram-positive bacteria from gram-negative bacteria?

Outer membrane Signup and view all the answers

Which type of bacteria is susceptible to penicillin, as per the given text?

MRSA Signup and view all the answers

What is the primary purpose of the acid-fast stain mentioned in the text?

To identify TB (mycobacteria) Signup and view all the answers

What happens when aggressive gram-negative bacteria die, according to the text?

They release endotoxins from the outer membrane Signup and view all the answers

Why is prescribing tetracycline effective for a male complaining of a burning sensation when peeing, as per the information provided?

It neutralizes endotoxins released by gram-negative bacteria Signup and view all the answers

What is the function of teichoic acid in gram-positive bacteria?

It provides protection against antibiotics and macrophages. Signup and view all the answers

Why do some antibiotics target ribosomes?

To stop the production of proteins in bacteria. Signup and view all the answers

What makes it difficult to treat bacteria with a sugar coating on the outside?

The presence of high negative charge Signup and view all the answers

Why is the presence of an outer membrane used to distinguish between gram-positive and gram-negative bacteria?

It makes it hard for antibiotics to penetrate the bacteria. Signup and view all the answers

What feature of gram-positive bacteria causes crystal violet to stick well with them?

The presence of teichoic acid Signup and view all the answers

Why does ampicillin go right through gram-positive bacteria?

The absence of an outer membrane Signup and view all the answers