Quiz 10

Question 1

What is the outstanding characteristic of the Kingdom Fungi?

Answer 1

Members absorb dissolved organic matter.

Question 2

Use the dichotomous key in the table to identify a gram-negative cell that ferments lactose and uses citric acid as its sole carbon source.

Answer 2

Citrobacter

Question 3

Serological testing is based on the fact that

Answer 3

antibodies react specifically with an antigen.

Question 4

Which of the following characterizes the Domain Bacteria?

Answer 4

prokaryotic cells; ester linkages in phospholipids

Question 5

The arrangement of organisms into taxa

Answer 5

shows degrees of relatedness between organisms.

Question 6

Which of the following statements about archaea is FALSE?

• They lack peptidoglycan in their cell walls.
• They evolved before bacteria.
• Some are thermoacidophiles; others are extreme halophiles.
• Some produce methane from carbon dioxide and hydrogen.
• They are prokaryotes.

Answer 6

They evolved before bacteria.

Question 7

Bacteria and Archaea are similar in which of the following?

• sensitivity to antibiotics
• considered prokaryotic cells
• peptidoglycan cell walls
• plasma membrane ester linkage
• methionine as the start signal for protein synthesis

Answer 7

considered prokaryotic cells

Question 8

A genus can best be defined as

Answer 8

a taxon composed of one or more species and a classification level lying below family.

Question 9

Use the dichotomous key in the table to identify a gram-negative coccus.

Answer 9

Neisseria

Question 10

Which of the following is the best evidence for a three-domain system?

• Some bacteria live in extreme environments.
• There are three distinctly different sets of metabolic reactions.
• There are three distinctly different Gram reactions.
• Nucleotide sequences in ribosomal RNA vary between all three domains.
• There are three distinctly different types of nuclei.

Answer 10

Nucleotide sequences in ribosomal RNA vary between all three domains.