Exam 22: An Introduction to Microbiology and Human Disease

A microorganism that is usually harmless but may become a pathogen in specific circumstances is called:

The body systems lined with mucous membranes are the digestive,respiratory,reproductive,and _________________________.

Bacterial chemicals that are harmful to host cells are called:

Bacteria capable of self-locomotion have:

Rod-shaped bacteria that grow in chains are called:

Most bacteria stimulate antibody production because they:

Bacteria that reproduce only in the absence of oxygen are called ____________________.

With respect to the skin,the largest resident flora would be found in the:

Hydrochloric acid destroys most pathogens that get to the ____________________.

The flaking of the stratum corneum continuously removes pathogens from the:

Anaerobic bacteria are those that cannot reproduce when ____________________.

Skin is an excellent barrier to pathogens unless it is ____________________.

A person who recovers from a disease but continues to shed the pathogen is called a ____________________.

Pasteurization of milk involves:

A disease such as cholera,which is spread by contaminated water,is called:

The time between the entry of a pathogen and the beginning of symptoms is called the:

A(n)____________________ infection is one that is acquired in a hospital.

The part of a bacterial cell that makes it gram positive or negative is the ____________________.

The respiratory tract limits the intake of airborne pathogens because of its ____________________ epithelium.

Bacterial cells that have capsules are: