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biology y9 > 1. Nature And Variety Life > Flashcards

1. Nature And Variety Life Flashcards

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1
Q

Are plants multi or unicellular

A

Multicellular (animals are also multicellular)

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2
Q

What are plant cell walls made of

A

Cellulose

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3
Q

What do plants store carbohydrates as

A

Starch or sucrose

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4
Q

Are animals multi or unicellular

A

Multicellular

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5
Q

What do animals often story carbohydrates as

A

Glycogen

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6
Q

What do animal cells not have?

A

Chloroplasts, vacuole, cell wall

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7
Q

How are fungi bodies organised

A

Into a mycelium

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8
Q

What are the thread- like structures in fungi called

A

Hyphae

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9
Q

What do hyphae contain

A

Many nuclei

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10
Q

What are fungi cell walls made of

A

Chitin

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11
Q

How do fungi feed

A

With saprotrophic nutrition

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12
Q

Saprotrophic nutrition def

A

Feed by extracellular secretion of digestive enzymes onto food material and absorption of the organic products

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13
Q

Example of fungi

A

Mucor

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14
Q

Fungi are what- celled

A

Can be multi and uni

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15
Q

What may fungi store carbohydrates as

A

Glycogen

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16
Q

What are protoctists

A

Microscopic single-celled organisms

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17
Q

Example of protoctist with features like an animal cell

A

Amoeba

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18
Q

Example of protoctist with features like a plant cell

A

Chlorella

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19
Q

Protoctist pathogenic example

A

Plasmodium

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20
Q

What disease does plasmodium cause

A

Malaria

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21
Q

Bacteria are what-celled

A

Single-celled

22
Q

What do bacteria not have

A

Nucleus and cell wall

23
Q

What do bacteria have instead of a nucleus

A

Circular chromosome of DNA

24
Q

What do most bacteria feed off of

A

Other living or dead organisms

25
Q

What bacteria is used to make yogurt

A

Lactobacillus bulgaricus

26
Q

What bacteria causes pneumonia

A

Pneumococcus

27
Q

What is a pathogen

A

An organism which causes disease

28
Q

Are viruses living organisms

A

No they are parasites

29
Q

What are viruses smaller then

A

Bacteria

30
Q

Where can viruses only reproduce

A

Inside living cells

31
Q

What do viruses infect

A

Every type of living organism

32
Q

Viruses have a what coat

A

Protein coat

33
Q

What do viruses not have

A

No cellular structure

34
Q

What do viruses contain one type of

A

Nucleic acid

35
Q

What are the nucleic acids that viruses could contain

A

DNA or RNA

36
Q

Example of a virus

A

Tobacco mosaic viruses

37
Q

What virus causes flu

A

Influenza

38
Q

What does the HIV virus cause

A

AIDS

39
Q

Where do Amoeba live

A

In pond water

40
Q

Respiration word equation

A

Glucose+oxygen=carbon dioxide+water

41
Q

Photosynthesis word equation

A

Carbon dioxide+water->glucose+oxygen

42
Q

Example of control

A

Body temperature

43
Q

Function of nucleus

A

The cell’s control centre and contains genetic information

44
Q

Function of cytoplasm

A

Medium for chemical reactions

45
Q

Function of cell membrane

A

To control the entry and exit of molecules into and out of the cell

46
Q

Cell wall function

A

Provides strength and protection

47
Q

Mitochondria function

A

Where respiration occurs, releases energy

48
Q

Ribosome function

A

Tiny structures where protein synthesis occurs

49
Q

Vacuole function

A

Contains cell sap

50
Q

What are parasites

A

They depend on other organisms to grow and reproduce

51
Q

Bacteria cell diff

A

No nucleus, no mitochondria, flagellum, dna loop, plasmid, slime capsule, cell wall

biology y9 (4 decks)

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