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

plasmid

extra DNA in bacteria cells

prions

small proteins | wrong shapes

viroids

small stretch of proteins

virus capsid

container made of protein

virus genetic material

DNA/RNA in capsid

virus reproduction

can only happen if there is a host cell

bacteriophages

infects bacteria

retroviruses

uses RNA to make DNA

how do viruses cause disease

killing of cells

west nile virus

caused by mosquito bites

lytic infection

virus copies itself using bacteria cells

lysogenic infection

virus dna is put into hosts dna to replicate