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Describe chemical composition and function of cell wall

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Reference no: EM131653147

External Structures of Bacterial Cells

1. Describe the following features and their functions of a "typical" bacterial (prokaryotic) cell.Be able to identify them in a drawing or micrograph.

a. glycocalyx (include capsule and slime layer)   c. fimbria             e. cell wall          

b. flagella                                                        d. pili                                                                    

2. Define taxis and differentiate between:

a. positive and negative taxis                                     

b. phototaxis and chemotaxis

3. Describe the flagellar arrangements below:

a. peritrichous                   c. tuft of polar/lophotrichous                     e. atrichous

b. single polar                    d. endoflagella/axial filament                     f. amphitrichous

4. What is a biofilm?

Bacterial Cell Walls -

5. Describe the chemical composition and function of the cell wall. Which bacteria lack a cell wall?

6. Compare and contrast the gram negative and gram positive cell envelope structure.

Reference no: EM131653147

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