Classifications Between Archaebacteria and Eubacteria

Question 1

What is used to classify archaebacteria?

Answer 1

The environment

Question 2

What is used to classify eubacteria?

Answer 2

Gram staining

Question 3

What does gram staining do?

Answer 3

Determines lipid content through the thickness of peptidoglycan and cell membranes.

Question 4

How does gram staining classify eubacteria?

Answer 4

When the bacteria is gram negative, it is pink, so there are two membranes + thin layers of peptidoglycan. When the bacteria is gram positive, it is purple, so there is one membrane + a thick layer of peptidoglycan.

Question 5

Gram-positive microorganisms have higher ______________ content, whereas gram-negative organisms have higher ________ content.

Answer 5

peptidoglycan; lipid

Question 6

Gram-negative eubacteria are less susceptible to antibiotics because….

Answer 6

extra membrane makes it harder to penetrate the cell wall.

Question 7

Gram-positive eubacteria are more susceptible to antibiotics because….

Answer 7

they only have one membrane.

Question 8

What does “diplo” mean?

Answer 8

In pairs

Question 9

What does “staphylo” mean?

Answer 9

Clumped

Question 10

What does “strepto” mean?

Answer 10

Chain

Question 11

What does “coccus” mean?

Answer 11

Round

Question 12

What does “Bacillus” mean?

Answer 12

rod-shaped

Question 13

What does Spirillum mean?

Answer 13

spiral