Test 1 Questions

Question 1

Which Microbes have ribosomes?

Answer 1

Bacteria and Fungi

-viruses DO NOT have ribosomes

Question 2

What are the flagellar arrangements of bacteria?

Answer 2

Question 3

Why is Cryptosporidium parvum a concern for people who swim in public swimming pools?

Answer 3

Cause Diarrheal illnesses because the protozoan parasite produces Cysts that are chlorine-resistant.

Question 4

What would protect a bacteria from phagocytosis?

Answer 4

Capsular polysaccharide

Question 5

What is the structure of peptidoglycan composed of?

Answer 5

alternating NAG and NAM sugars that are cross-linked by peptides

Question 6

9+2 microtubule arrangement is found in what?

Answer 6

Eukaryotic flagella and cilia

Question 7

What causes the filamentous appearance of fungal structures?

Answer 7

Hyphae

Question 8

Treponema pallidum causes syphilis, a sexually transmitted infection. The bacterium uses its periplasmic flagella to create a corkscrew-like motion to penetrate epithelial tissues of the genitals. When you view a sample from a syphilis patient under a microscope, you would expect to see cells classified as ____________________ .

Answer 8

Spirochete

Question 9

When prokaryotic cells learned how to perform _____________ and use the most abundant energy source on the planet, it lead to the development of complex eukaryotic cells nearly 1.8 billion years ago.

Answer 9

Photosynthesis

Question 10

Methicillin-resistant _________________ aureus or MRSA is known as a “superbug” because many antibiotics are ineffective at treating infections.

Answer 10

Staphylococcus

Question 11

Which lens of a compund light microscope focuses light on the specimen?

Answer 11

Condenser

Question 12

Which cells do not have cell walls?

Answer 12

Protozoa

Question 13

Antibiotics used for treating the lung disease tuberculosis (TB) target mycolic acids that make up a protective, waxy _____________ in Mycobacterium tuberculosis.

Answer 13

Cell Wall

Question 14

Optic lenses can help determine which characteristics of a light microscope?

Answer 14

Magnification and resolving power and amount of contrast

Question 15

An agar medium that contains a beef extract as a source of amino acids, salt to inhibit growth of some but not all bacteria, and phenol red for detecting acid produced by sugar fermentation can be decribes as all of the following except:

• Defined
• Differential
• Selective
• Complex
• Solid

Answer 15

Defined