6. Bacterial Cell Structure And Function

Question 1

What is bacteria?

Answer 1

Unicellular organisms

Question 2

What are colonies or biofilms?

Answer 2

A community of microbes

Question 3

Average size of bacteria?

Answer 3

1 micron

Question 4

What is Pleomorphism?

Answer 4

Variation in shape & size of cells of a single species due to nutritional and genetic differences.

Question 5

What are cocci?

Answer 5

Spherical bacterial cells

Question 6

Diplococci?

Answer 6

Pairs of cocci

Question 7

Tetrad cocci?

Answer 7

Groups of four cocci

Question 8

Staphylococci?

Answer 8

Irregular clusters

Question 9

Streptococci?

Answer 9

Chains of cocci

Question 10

What is the bacilli arrangement?

Answer 10

Rods

Question 11

Diplobacilli?

Answer 11

Pair of bacterial bacilli cells

Question 12

Coccobacilli?

Answer 12

Very short rods

Question 13

Streptobacilli?

Answer 13

Chains of rods

Question 14

Arrangement spirochaete

Answer 14

Spiral

Question 15

Arrangement of Vibrios?

Answer 15

Curved

Question 16

What is the cell envelope?

Answer 16

Part of the cell that lays outside of the cytoplasm composed of the cell wall, plasma membrane and outer membrane.

Question 17

What is the cell wall?

Answer 17

In prokaryotes, composed of peptidoglycan, cell walls protect the cell and prevent it from bursting in a hypotonic environment

Question 18

What is peptidoglycan composed of?

Answer 18

Alternating amino sugar and peptide structure.

Question 19

Peptidoglycan sugars are?

Answer 19

N-acetylmuramic acid
N-acetylglucosamine acid