Practice Test Unit III

This bacterial group is responsible for vaginitis

Gardnerella

These bacteria are commonly found on human skin and are implicated as a cause of acne.

Propionibacterium

This acid-fast group is responsible for tuberculosis and leprosy.

Mycobacterium

This bacterial group produces an enterotoxin and exhibits antibiotic resistance; common inhabitant of skin and nose.

Staphylococcus

This endospore producing bacteria is responsible for botulism, tetanus and gas gangrene.

Clostridium

This bacteria is responsible for peptic ulcers.

Helicobacter

This bacteria can be transmitted to humans by dog or cat bits and can be found in Komodo dragon saliva.

Pasteurella

This group of bacteria was responbile for the Black Death of medieval Europe and is transmitted by fleas.

Yersinia

This bacterial group when present in food or water is an indication of fecal contamination; common inhabitant of human intestinal tract.

Escherichia

Name the bacterial group responsible for gonorrhoea and meningitis.

Neisseria

Bacterial group associated with whooping cough.

Bordetella

Bacterial group common in soil and other natural environments; of medical concern.

Pseudomonas

Bacterial group responsible for cat scratch disease.

Bartonella

Which of the following domains are prokaryotic

Archaea, bacteria

Which of the following eukaryotic microorganisms is always unicellular?

protozoa

Your roommate tells you that the maple syrup has bacterial growth. Without looking, you suspect the growth is actually a fungus because:

bacteria can't tolerate a high osmotic pressure such as would be present with sugar in syrup

Algae differ from fungi in that algae

are autotrophs

Insects that transmit diseases from one host to another are called

vectors

The "red tide" is caused by a proliferation of

dinoflagellates

Which of the following represents the filaments of a fungus

hyphae

Which of the following terms refers to a fungal infection deep within the body

systemic mycosis

Which of the following groups of algae would be the source of algin

Phaeophyta

Which of the following is the feeding, growing stage of the protozoan

trophozoite

Which of the following would harbor the parasite as it reproduces asexually

intermediate host

This term means that organism is separately sexed (male house and female house)

dioecious

The scolex is

the head of the tapeworm

In which of the following ways do viruses differ from bacteria?

viruses are not composed of cells

Which of the following is not true about spikes?

they are used for penetration

Which of the following is not used as a criterion to classify viruses?

biochemical tests

Which of the following steps involves the separation of the nucleic acid from the capsid or coat?

uncoating

A clear area against a confluent "lawn" of bacteria is called a

plaque

An envelope is acquired during which of the following steps?

release

Some viruses, such as Human Herpes Virus 1, infect a cell without causing symptoms; these are called

latent viruses

Bacterial group transmitted to humans by bites of insects and ticks.

Rickettsia

Bacterial group that live obligately within white blood cells; can be transmitted by ticks.

Ehrlichia

Bacterial group responsible for the disease brucellosis.

Brucella