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Science > 9B (from year 8) > Flashcards

9B (from year 8) Flashcards

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Biology 101 flashcards
1
Q

What is a microbe

A

an organism that can only be seen under a microscope

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2
Q

what is a communicable disease

A

a disease that can be transmitted from one person to another

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3
Q

what tire of pathogen is hiv

A

virus

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4
Q

how can the flu be transmitted

A

the flu can be transmitted via contact me through the air

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5
Q

what types of pathogen are multicellular

A

fungi

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6
Q

what are the 4 different types of pathogen

A

bacteria virus fungi and protists

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7
Q

what is a pathogen

A

a microorganism that causes disease

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8
Q

what effects does latin acid have on milk

A

causes it to become sour and thicken

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9
Q

what is the word equation for l anaerobic respiration in lactic acid

A

glucose >lactic acid

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10
Q

what condition do bacteria grow well in?

A

presence of nutrients, warmth and moisture

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11
Q

what process do bacteria reproduce

A

binary fission

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12
Q

what is the weird equation for fermation

A

glucose >ethanol +carbon dioxide

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13
Q

what if fermatiom

A

a type of anaerobic reparation carrie’s out by microorganism such as yeast

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14
Q

what makes bread dough rise

A

yeast cells respire aerobicslkt which creates bubbles of air

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15
Q

what is the word equation for aerobic respiration

A

glucose +oxgen >carbon dioxide +water

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16
Q

what does anaerobic man

A

without oxygen

17
Q

what does aerobic mean

A

with oxygen

18
Q

how does yeast reproduce

A

via budding (asexual reproduction)

19
Q

skin-
chemicals-
stomach acid-
mucus-
white blood cells-

A

-acts as a physical barrier preventing entry of pathogens
-kill pathogens
-hydrochloric acid in the stomach can kill pathogens
- it traps dust and pathogens. It is moved by ciliates ephithelial ceres
-engulf pathogens or make chemicals destroyed then

20
Q

what are the key defence the human body has against pathogens

A

skin , chemicals in tears/saliva/mucus, stomach scud, white blood cells

21
Q

how do pathogens get into the human body

A

any opening, ears eyes cuts nose mouth genital

Science (12 decks)

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