SM Microbial Identification & Classification

Question 1

Which staining technique is commonly used to differentiate bacterial species?

Accepted Answer

Gram stain

Answer

Acid-fast stain

Answer

Endospore stain

Answer

Negative stain

Question 2

What is the primary difference between prokaryotic and eukaryotic microorganisms?

Accepted Answer

Absence of a nucleus in prokaryotes

Answer

Presence of ribosomes

Answer

Type of DNA they contain

Answer

Size of the cell

Question 3

Which molecular technique is commonly used for bacterial identification?

Accepted Answer

PCR

Answer

ELISA

Answer

Spectrophotometry

Answer

Western blot

Question 4

Which type of bacteria lacks a cell wall?

Accepted Answer

Mycoplasma

Answer

Staphylococcus

Answer

Clostridium

Answer

Bacillus

Question 5

Which classification system is commonly used to identify microorganisms?

Accepted Answer

Bergey’s Manual

Answer

Linnean classification

Answer

Binomial nomenclature

Answer

Koch’s postulates

Question 6

What is the main characteristic of facultative anaerobes?

Accepted Answer

Can survive with or without oxygen

Answer

Require oxygen to grow

Answer

Are killed by oxygen

Answer

Only ferment sugars