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Microbiology Quizzes

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Questions and Answers

The coagulase test is used to differentiate Staphylococcus aureus from which other organism?

Neisseria meningitides
Enterococcus faecalis
Staphylococcus epidermidis (correct)
Streptococcus pyogens

Passive diffusion of solute molecules across a membrane occurs due to which factor?

Ionic difference
Pressure difference
Concentration difference (correct)
All of these

Which test would you use to distinguish between Streptococcus pyogens and Enterococcus faecalis?

Coagulase test (correct)
Catalase test
Hemolysis test
Gram staining

Which organism is NOT differentiated in the coagulase test?

<p>Neisseria meningitides (D)</p> Signup and view all the answers

What is the main driving force behind passive diffusion in biological systems?

<p>Concentration difference (B)</p> Signup and view all the answers

Study Notes

Coagulase Test

Used to differentiate between Staphylococcus aureus and Staphylococcus epidermidis
Also used to differentiate between other bacteria, such as Neisseria meningitides, Streptococcus pyogens, and Enterococcus faecalis

Passive Diffusion

Occurs due to concentration difference between two sides of the membrane
Also occurs due to pressure difference between the two sides of the membrane
Additionally, ionic difference can also be a driving force for passive diffusion
All of the above factors can contribute to passive diffusion

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Description

Assess your knowledge of microbiology concepts, including the coagulase test and passive diffusion. Identify the correct answers to differentiate between various bacterial species and understand the principles of membrane transport.