Chapter 20 test Flashcards by Lauren Alvarez

Q

archaea

A

domain

- lives in harsh environments

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Q

bacteria

A

has both cell wall and membrane

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Q

bacillus

A

rod bacteria

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Q

coccus

A

sphere bacteria

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Q

spirillus

A

spiral bacteria

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Q

heterotrophs

A

consume energy

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Q

autotrophs

A

make their own energy

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Q

photoautotrophs

A

energy from light

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Q

chemoautotrphs

A

gets energy from chemical reactions

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Q

binary fission

A

asexual reproduction

- bacteria splits

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Q

conjugation

A

sexual repro

- exchange dna

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Q

endospores

A

activate when conditions are right

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Q

environment bacteria functions

A

decomposers

producers

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Q

medical bacteria function

A

can be used in medicine

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Q

human bacteria function

A

creates yogurt

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Q

pathogen

A

makes you sick

Q

bacterial diseases

A

release toxins

- kill cells

Q

how does bacteria cause disease

A

through pathogens

Q

how are bacteria infections treated

A

antibiotics

Q

lyme disease

A

tick bites, rash

Q

tetanus

A

enters body through wounds

Q

bacterial meningitis

A

respiratory drops

Q

gram staining

A

either + or -

- can determine antibiotics

Q

antibiotics

A

kills the cell wall of bacteria

Q

plasmid

A

extra DNA in bacteria cells

Q

prions

A

small proteins

wrong shapes

Q

viroids

A

small stretch of proteins

Q

virus capsid

A

container made of protein

Q

virus genetic material

A

DNA/RNA in capsid

Q

virus reproduction

A

can only happen if there is a host cell

Q

bacteriophages

A

infects bacteria

Q

retroviruses

A

uses RNA to make DNA

Q

how do viruses cause disease

A

killing of cells

Q

west nile virus

A

caused by mosquito bites

Q

lytic infection

A

virus copies itself using bacteria cells

Q

lysogenic infection

A

virus dna is put into hosts dna to replicate