Virus and bacteria test Flashcards

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1
Q

What cell does HIV attack that impairs the immune system

A

helper t cells

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2
Q

characteristic shared by virus and living cell

A

store genetic information in nucleic acids

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3
Q

viruses unlike bacteria

A

can reproduce only in living cells

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4
Q

major destructive result from infection from virus

A

destruction of cells by viral replication

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5
Q

what organism lives in many herbivore intestine and aids in the digestive process

A

bacteria

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6
Q

prokaryotes with a spherical shape

A

cocci

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7
Q

what makes the body produce immunity to disease

A

vaccines

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8
Q

examples of organisms that break down the nutrients in dead matter into simpler substances

A

bacteria and fungi

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9
Q

antibiotics work by blocking the growth and reproduction of

A

bacteria

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10
Q

what do decomposers improve the quality of

A

topsoil layer

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11
Q

what is used to produce drugs like insulin

A

bacteria

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12
Q

the algal bloom called red tide

A

produces toxins that can harm fish and humans

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13
Q

fungus that grows within the outer layers of human skin causes

A

ringworm and athletes foot

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14
Q

what is the effect of the symbiotic relationship of lichen

A

the algae and fungus is benefited

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15
Q

what type of symbiosis is the relationship between plants and fungi in mycorrhizae

A

mutualism

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16
Q

vaccines

A

promote production of antibodies

17
Q

what requires a host cell

A

viruses

18
Q

why is milk heated before being cooled and sold

A

control pathogen growth in the milk

19
Q

first step of virus replication

A

virus connects to a receptor on the cells surface

20
Q

after virus connects to a receptor then

A

virus injects DNA or RNA into the cell

21
Q

after the DNA or RNA is injected

A

viral genes transcribe and translate by the host cells machinery

22
Q

after transcription and translation

A

an infected cell synthesizes more viral protein and genetic material instead of its usual products

23
Q

after the infected cell synthesizes

A

virus genomes and protein coats self-assemble

24
Q

after virus genomes

A

viruses burst from host cells and kill the cell

25
Q

last step of virus replication

A

new viruses infect other cells and create more viruses

26
Q

main parts of a virus

A

genome (DNA and RNA)
capsid(protein)
envelope(lipid)

27
Q

what is the shell that surrounds the DNA/RNA inside of the virus

A

capsid

28
Q

do lysogenic viruses lyse or destroy the host cell immediately

A

yes

29
Q

can antibiotics treat viruses

A

no

30
Q

can viruses replicate on environmental surfaces

A

no

31
Q

viral biodiversity is the ability of __________ to transfer genetic material to different species

A

a virus

32
Q

how can an infection be resistant to an antibiotic

A

a bacteria that causes infection changes to reduce the effectiveness of an antibiotic

33
Q

list the kingdoms in order

A

archaebacteria, bacteria, protista, fungi, plantae, and animalia