Bacteria Flashcards

1
Q

prokaryote

A

an organism that consists of a single cell that does not have a nucleus.

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2
Q

bacilli

A

a rod-shaped bacterium.

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3
Q

Cocci

A

any spherical or roughly spherical bacterium.

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4
Q

spirilla

A

a bacterium with a rigid spiral structure, found in stagnant water and sometimes causing disease.

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5
Q

Binary fission

A

a form of asexual reproduction in single-celled organisms by which one cell divides into two cells of the same size.

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6
Q

Endospore

A

a thick-walled protective spore that forms inside a bacteria cell and resists harsh conditions.

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7
Q

Nitrogen fixation

A

the chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle.

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8
Q

Bioremediation

A

the biological treatment of hazardous waste by living organisms.

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9
Q

Antibiotic

A

medicine used to kill bacteria and other microorganisms.

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10
Q

pathogenic bacteria

A

bacteria that cause disease.

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11
Q

Virus

A

a microscopic particle that gets inside a cell and often destroys the cell.

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12
Q

host

A

an organism from which a parasite takes food or shelter.

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