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10 Questions

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Cell Biology: The Cell Types

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Questions and Answers

What is the composition of the outer membrane in Gram negative bacteria?

Lipopolysaccharide (LPS) composed of lipid A layer and polysaccharide (somatic O antigen)

What is the function of the bacterial cell wall in maintaining the shape of bacteria?

It is a rigid structure that maintains the shape of bacteria.

What is the role of teichoic acid in the cell wall of Gram positive bacteria?

Surface fibers that are highly immunogenic.

What is the main function of the cytoplasmic membrane in bacteria?

Selective permeability to different molecules. Signup and view all the answers

What is the toxic component of endotoxin in Gram negative bacteria?

Lipid A Signup and view all the answers

What are the two types of cells mentioned in the text?

Prokaryotic cell and Euokaryotic cell Signup and view all the answers

What are the main features of a Prokaryotic cell?

No nucleus or nuclear membrane, single circular DNA macromolecule Signup and view all the answers

How do Euokaryotic cells differ from Prokaryotic cells?

Euokaryotic cells have a nucleus, nuclear membrane, and various subcellular organelles. Signup and view all the answers

What are the components of a bacterial cell envelope?

Cytoplasmic membrane & cell wall Signup and view all the answers

What is the main structure that maintains the rigidity and shape of bacterial cells?

Bacterial cell wall made of peptidoglycan polymers Signup and view all the answers