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Gram Positive Cell Wall Structure and Function

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Gram Positive Cell Wall Structure and Function

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Questions and Answers

What is the primary function of the cell wall in microbes?

To facilitate movement

To provide structure and protection (correct)

To synthesize proteins

To regulate gene expression

What is the term for the ability of microbes to move towards or away from a stimulus?

Taxis (correct)

Motility

Chemotaxis

Osmosis

What is the purpose of endospores in microbes?

To facilitate DNA replication

To ensure survival in harsh environments (correct)

To enhance protein synthesis

To increase biofilm formation

What is the term for the complex community of microbes adhering to a surface?

Biofilm Signup and view all the answers

What is the term for the carbohydrate-rich outer layer of microbes?

Glycocalyx Signup and view all the answers

What is the term for the outer layer of polysaccharides that provides protection and facilitates adhesion to surfaces?

Capsule Signup and view all the answers

What is the primary function of teichoic acids in the gram positive cell wall?

Facilitating cell adhesion and maintaining a negative charge Signup and view all the answers

What is the purpose of the glycocalyx in gram positive bacteria?

To protect the bacteria from host defenses Signup and view all the answers

What is the primary function of the capsule in gram positive bacteria?

Inhibiting recognition and engulfment by immune cells Signup and view all the answers

What is the purpose of the slime layer in gram positive bacteria?

To retain moisture around the cell and facilitate attachment to surfaces Signup and view all the answers

What is the primary function of biofilms in gram positive bacteria?

To protect the bacteria from host defenses and environmental stressors Signup and view all the answers

What type of bacteria are endoflagella typically found in?

Spirochetes Signup and view all the answers

What is the function of the tail attached to the amino terminus of a protein?

To allow the protein to be embedded in the lipid bilayer Signup and view all the answers

What happens to a cell when it is placed in a hypotonic solution?

Water flows into the cell, causing it to swell Signup and view all the answers

What is the characteristic feature of a Gram-negative cell wall?

Two membranes separated by a periplasmic space Signup and view all the answers

What is the function of lysosomes in a cell?

To break down molecules Signup and view all the answers

What is the characteristic feature of Mycoplasma?

The presence of a cytoplasmic membrane Signup and view all the answers

What is the function of porin proteins in the outer membrane of a Gram-negative cell wall?

To facilitate the transport of molecules across the membrane Signup and view all the answers