Chapter 25

A thounsandeth

The volume of a typical bacterium is about _____ the volume of a typical eukaryotic cell.

What is the purpose of sex pili

To transmit DNA among bacteria

By means of rotating flagella

How do bacteria move

Which type of bacterium would not be able to survive in the presence of oxygen

Obligate Anerobic

Botulism

Which disease is caused by an exotoxin released by the gram-positive, endospore-forming bacteria, often because food was not heated sufficiently to kill the endospores?

Cyanobacteria

Which is the only prokaryote to carry on photosynthesis that generates oxygen?

Bacilli

Which of the following are rod-shaped bacteria?

It is found in recipient cells, not donor cells.

Which statement about an F factor is FALSE?

Their capsule of slime layer

Some bacteria avoid being phagocytized by a host's immune system by means of

Chemoautotroph

A bacterium that uses the oxidation of inorganic compounds to provide energy for manufacturing nutritious organic compounds is a:

Binary Fission

The most common mode of reproduction in bacteria is

Absence of peptodoglycan

The most significant difference between archaea and bacteria is the

Causes of diseases

What are Koch's postulates

Cow digestive tracts

Where would you likely find Euryarchaeota bacteria

endotoxins; exotoxins

Bacterial ____ cause systemic symptoms such as fever, whereas bacterial ____ cause more specific maladies

Sugars and Crosslinked proteins

Peptidoglycan consists of

fimbriae

Small hairlike structures made up of protein on the surface of bacteria are called

Gram Negative Bacteria

Streptococci, the bacteria responsible for strep throat infections, is classified within which group of Bacteria?

Conjugation

____ is a form of genetic exchange in bacteria that involves contact between two cells.

Mutualistic

Cows and other ruminates rely on a ____ relationship with bacteria in their digestive tract

Purple; polysaccharides

Gram-positive bacteria would stain ____ in a gram stain because of a thick layer of ____ in their cell walls

Ether linkages

The Archaea plasma membranes are made up of branched-chain hydrocarbons bounded to glycerol by

Bacteria form endospores

How do some bacteria respond to adverse environmental conditions

Fillament

Which structure acts like a motor for the bacterial flagellum?

Bacillus anthracis, which causes anthrax

Which was the first bacterium to be clearly identified as the cause of an infectious disease?

Penicillin cannot reach the thin peptiodoglycan layer easily

Why is penicillin ineffective against gram-negative bacteria?

Biofilms are usually less than 2um thick

Which statement about biofilms is FALSE?

Very few species of bacteria are used to clean up various forms of pollution

Which statement about bioremediation is FALSE?

Ribosome

Although bacteria lack membrane-bound organelles, such as chloroplasts and mitochondria, they can still perform the functions of these organelles by localizing certain metabolic enzymes on: