Exam 22: An Introduction to Microbiology and Human Disease

Flagella enable bacteria to:

The vector of epidemic typhus is a:

A coccus is shaped like a ____________________,a bacillus is shaped like a ____________________,and a spirillum is shaped like a ____________________.

Respiratory pathogens are most often spread by:

Which statement is NOT true of the normal flora of a person?

Inanimate objects that may be sources of pathogens are called ____________________.

A systemic infection is one that:

A secondary infection is possible if a person:

Drinking water is often ____ to make it safe to drink.

Bacteria that might normally be killed by heat may survive if they are able to form:

A chronic infection is one that ____________________.

The vector of plague is a ____________________.

An infection that begins suddenly or progresses rapidly is called ____________________.

Which of the following statements are true of viruses? (Read carefully and select all of the correct statements.)

The fatty acids in ____________________ inhibit the growth of some bacteria on the skin.

Which of the following statements are true of vectors and the diseases they spread? (Read carefully and select all of the correct statements.)

Septicemia is the presence of ____________________ in the ____________________.

Viruses are obligate intracellular parasites,which means that they must be ____________________ in order to ____________________.

The part of the small intestine with the largest resident flora (microbiota)is the:

A disease such as Lyme disease,which is spread from host to host by a vector,is considered ____________________.