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BIO 246: Microbiology of Human Disease > Test 1 Questions > Flashcards

Flashcards in Test 1 Questions Deck (16):
1

Which Microbes have ribosomes?

Bacteria and Fungi

-viruses DO NOT have ribosomes

2

What are the flagellar arrangements of bacteria?

A image thumb
3

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

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

4

What would protect a bacteria from phagocytosis?

Capsular polysaccharide

5

What is the structure of peptidoglycan composed of?

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

6

9+2 microtubule arrangement is found in what?

Eukaryotic flagella and cilia

7

What causes the filamentous appearance of fungal structures?

Hyphae

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 ____________________ .

Spirochete

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.

Photosynthesis

10

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

Staphylococcus

11

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

Condenser

12

Which cells do not have cell walls?

Protozoa

13

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

Cell Wall

14

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

Magnification and resolving power and amount of contrast

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

Defined

16