Chapter_19

The study of microscopic organisms

Minute living bodies that are visible only with the aid of a microscope

The size, shape, and arrangement of bacteria

Hairlike appendages on bacteria that create movement

Organisms that require an atmosphere with oxygen to survive

Organisms that need only 5% oxygen to survive

Organisms that require an atmosphere with no oxygen to survive

Organisms that can function with or without oxygen

Enzymes secreted by bacteria that can damage the host cell

Toxic substances released when a bacterial cell dies and the cell wall is lysed

Laboratory procedure used to identify bacteria

Microbes capable of causing disease 

Less complex cells, including bacteria

Manner of cell division of prokaryotes

Complex cells, including fungi and all plant and animal cells

Living or inanimate cells that harbor pathogens

Infection acquired in a healthcare setting 

Two organisms living together in a close relationship 

Microscopic organisms adapted to living in the body without causing disease

Condition in which two organisms live together and both of them benefit from the relationship and depend on it for survival

Relationship in which two organisms work together to produce a desired effect that cannot be produced by either organism alone

The relationship that exists when two organisms invade a host and one benefits from the relationship but the other is not affected either way

Relationship in which one organism benefits while causing harm to the host

Agent used to kill bacteria on inanimate objects