Microbiology Review

Front

What is the first step in the Differential Gram Stain Technique?

Back

Apply crystal violet dye.

Front

What type of bacteria have a thick peptidoglycan cell wall and no outer membrane?

Back

Gram-positive bacteria.

Front

Which staining technique is NOT a main technique mentioned in microbiology?

Back

Acid-Fast Stain.

Front

What is the term for organisms that can only be seen under certain types of microscopes?

Back

Microorganisms.

Front

What separates the nucleus from the cytoplasm in a cell?

Back

Nuclear membrane.

Tags

NGSS.MS-LS1-2

Front

What is the purpose of the Gram Stain technique?

Back

To differentiate between Gram-positive and Gram-negative bacteria.

Front

What color do Gram-positive bacteria appear after the Gram Stain procedure?

Back

Purple.

Front

What color do Gram-negative bacteria appear after the Gram Stain procedure?

Back

Pink.

Front

What is peptidoglycan?

Back

A polymer that makes up the cell wall of bacteria.

Front

What is the role of the outer membrane in Gram-negative bacteria?

Back

It acts as a barrier to certain antibiotics and detergents.