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Bacteria
Classifying Prokaryotes
More about Bacteria
Viruses
100

Why are Methanogens named that?

Because they produce methane.

100

Cyanobacteria produce a lot of __________ for the atmosphere.

oxygen

100

Are Methanogens named after the conditions in which it lives?

no

100

An obligate aerobe must live in _____________

an environment with oxygen

100

When a virus infects a cell, what does it send into the cell?

nucleic acids

200

Which kind of microscope has the greatest magnification: TEM, STM, or a light microscope?

STM

200

Are proteobacteria gram-positive or gram-negative?

gram-negative

200

organisms that live in especially harsh conditions are called________________

extremophiles

200
An obligate anaerobe cannot survive for long in the presence of _______________

oxygen

200

Which term refers to the cell's plasma membrane breaking down and its contents spilling out into the environment?

lysis

300

In nitrogen fixation, the production of nitrate requires how many types of bacterium?

3

300

Bacteria that are rod shaped often have _________ in their name.

bacillus

300

extremophiles belong to the domain __________

Archaea

300

Organisms that can perform aerobic respiration but can switch to fermentation when little or no oxygen is present are called ____________

facultative anaerobes

300

Once a virus gets its nucleic acid into a cell one of 2 cycles will take place, what are those 2 cycles?

Lytic cycle and lysogenic cycle

400

In nitrogen fixation, the production of ammonia requires how many types of bacterium?

1

400

If a bacterium lives in a host normally and doesn't cause illness we would say that it is part of ___   __________   __________

the normal flora

400

Peptidoglycan is a chemical missing from the cell walls of which domain of organisms?

Archaea

400

When a gram stain is applied, bacteria that are ________ appear blue/purple

gram-positive

400

In which cycle does the virus reproduce repeatedly before releasing new virons by lysis?

Lytic Cycle

500

What is nitrogen fixaton?

The conversion of atmospheric nitrogen into a nitrogen-containing molecule that organisms can use.

500

Gram-positive bacteria are split into what 2 groups?

firmicutes and actinobacteria

500

______ is a prokaryote that lives in very salty environments.

halophile

500

When a gram stain is applied ___________ bacteria appear red.

gram-negative

500

In which cycle does viral DNA replicate with the cell and remain inside the cell, causing a latent infection?

Lysogenic Cycle

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