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Life Science Grd 11 > Term 1 Topic 1 > Flashcards

Term 1 Topic 1 Flashcards

1
Q

Protein cloat around nuclear material of a virus

A

Capsid

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2
Q

No cell

A

Acellular

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3
Q

Obligate parasites

A

Parasite that can’t complete its life cycle without exploiting a host or without they become dormant

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4
Q

Harbours parasites

A

Host

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5
Q

Pathogenic

A

Organisms that causes diseases

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6
Q

Nucleotides

A

Irregular shaped area in prokareotic cell that stores genetic material

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7
Q

Virus advantages

A

. Can’t excrete, feed or respite
. If they can’t find host they become dormant
. They are pathogenic

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8
Q

Flagellum

A

Whip like structure allowing bacteria to move in liquids

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9
Q

3 types of bacteria

A

Parasitic
Saprophytic
Mutualistic

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10
Q

Parasitic bacteria

A

Obtain food from living organisms

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11
Q

Saprophytic bacteria

A

Obtain food from dead or decaying metter

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12
Q

Mutualistic bacteria

A

Obtain food by forming a relationship with other organisms where both parties benefit

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13
Q

Characteristics of bacteria

A

. Unicellular
. Larger than virus

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14
Q

Binary fission

A

One single cell devide into 2 cells of identical DNA composition

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15
Q

Protista

A

. Unicellular
. Found In water
. Reproduces both sexually and a sexually

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16
Q

Phytoplankton

A

Very small plants floating on the surface of water

17
Q

Zooplankton

A

Small animals floating near or In water

18
Q

Organisms that can’t move on their own but move through outside sources

A

Sessile

19
Q

Without a true nucleus

A

Prokareotic

20
Q

Rhizopus

A

Bread moald

21
Q

Branches that anchor lower plants and fungi to a surface

A

Rhizoids

22
Q

Hyphae

A

Branches of rhizopus

23
Q

Thallus

A

Has no true roots (rhizopus)

24
Q

Types of hyphae

A

Runners
Rhizoid
Sporangiphore

25
Q

Autotrophic bacteria and fungus production

A

They produce their nutrients in form of photosynthesis and chemo synthesis ( producers)

26
Q

Role as decomposers

A

Decomposition bacteria and sepriphytic fungi and protists break dead Metter to proteins

27
Q

Water co² nh³ are released into air during decomposition

A

Elements c h o p s are recycled

28
Q

Role in nitrogen cycle

A

Soil Bacteria , nodule bacteria convert n gas to nitrates to make it accessible to plants

29
Q

Role

A

Nh3 is realesed by decomposition bacteria is processed by nitpicking bacteria into nitrites and eventually nitrates

30
Q

Role

A

Ammonia and nitrates are converted into n² by denitrifying bacteria

31
Q

Commensalism

A

Relationship where one organisms befenif without harming the other

32
Q

Parqsitism

A

Relationship where one species benefits while the other is harmed

Life Science Grd 11 (2 decks)

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