Exam 15: Bacteria and Archaea

Which of the following prokaryotes would be MOST likely to survive a full year in a freezing arctic tundra?

Determine whether a cell structure is found in prokaryotes only,eukaryotes only,or both prokaryotes and eukaryotes. -cell membrane

Plaque that form on the surface of teeth are an example of a(n)________.

An individual with a deep,closed belly button is more likely to have more ________ bacteria living in his or her belly button compared to an individual with a shallow,open belly button.

Prokaryotes may pick up pieces of DNA from the environment or other bacteria and incorporate these pieces into their own genome through

Disease-causing bacteria in a human begin to multiply rapidly when they sense that their numbers are high enough to overpower an immune response.This is possible because of

Prokaryotes can be found in most habitats because they

A photosynthetic,autotrophic prokaryote fits in the category represented by the letter ________ in the figure below.

Match each term describing prokaryotes with ways of obtaining energy and carbon. -a prokaryote that uses sunlight to obtain energy and consumes organic matter to obtain carbon

Match each term describing prokaryotes with ways of obtaining energy and carbon. -a prokaryote that obtains energy from inorganic iron ore and carbon from carbon dioxide

Compared to the domain Bacteria,the domain Archaea tends to live

A prokaryote living in a deep-sea environment that has limited gases and a deep layer of dead organic matter most likely fits in the category represented by the letter ________ in the figure below.

The generation time for a prokaryote is 30 minutes.If one cell is present on a petri dish,how many cells will be present after three hours?

An experiment is designed to test whether plants grow better in a sterile environment free of bacteria than they do in environments with bacteria.The soil,growing containers,and all materials are sterilized and seeds are planted.The seeds sprout but all of the seedlings die very quickly from nitrogen deficiency.Why?

Which of the following pairs of domains are MOST closely related?

As a group,prokaryotes

In which of the following environments would archaea be expected but not bacteria?

Small loops of extra DNA in the cytoplasm of prokaryotes are called

In what way do prokaryotes directly help plants?