Bio 1002 Ch 20

What is a major difference between the domains, Bacteria and Archaea?

The rapid and inexpensive routine laboratory procedure used to classify the bacterial world into two major groups is called the __________.

Which of the following statements best describes the end result of bacterial conjugation?

From which cell does the sex pilus originate during bacterial conjugation?

True or False. During bacterial conjugation, the recipient cell receives a single-stranded loop of DNA.

Which structure helps bacteria to attach within the tissues that they will infect?

True or false. Bacteria reproduce by an asexual process in which one parent cell gives rise to identical daughter cells

There are four bacteria in an egg salad that is left out at room temperature. After two hours, how many bacteria will be in the egg salad?

Why do virologists consider viruses to be nonliving?

Bacterial cell walls contain ________, which makes them different from other organisms.

While examining a hot spring, you find something you haven't seen before. It has a cell membrane, but the cell wall lacks peptidoglycan. It contains both DNA and RNA. The DNA is circular. It would be classified as a(n)

What differentiates gram-positive bacteria from gram-negative bacteria?

Some archaea can live in boiling water. True or False?

Bacterial endospores are used for

What do the sticky layers of protective slime produced by some bacteria enable them to do?

Sex pili are prokaryotic structures that are used

Cyanobacteria obtain energy from

In bacteria, the small, circular pieces of DNA that are located outside the chromosome are called

Mutations that improve the survival and reproduction of organisms, and thus contribute to the evolution of species, arise rapidly in prokaryotes due to their

True or False: Organisms that produce disease are pathogens.

Legumes obtain a useful form of ________ from bacteria that live in root nodules.

You discover a new particle. It has only RNA as a nucleic acid and lacks both a membrane and cytoplasm. This particle is a(n)

Prions are made up of only protein. True or False?

Viroids

Bovine spongiform encephalopathy, or mad cow disease, is caused by a

What consist of a protein coat surrounding a molecule of genetic material?

A virus basically consists of

In the process known as_______ ______, a single bacterium divides in half, producing two identical offspring.

When some bacteria are exposed to harsh conditions, they produce _________ , thick-coated protective structures that form within the bacterial cell.

_______ is the use of organisms to remove or detoxify toxic substances in the environment.

In prokaryotes, ___ is the transfer of DNA from one cell to another via temporary connection.

_______ are organisms that can live and grow in the absence of oxygen.

Dental plaque is one example of a(n)______ , a colony of different prokaryote species that secrete slime that sticks the cells to a substrate and to each other.

______ are viruses that only infect bacteria.

The general term for organisms that are capable of producing disease is ______