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Food Tech Gcse > Microorganisms > Flashcards

Microorganisms Flashcards

1
Q

Types of microorganisms

A

Yeast
Mould
Bacteria

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2
Q

What temperature does bacteria grow between

A

5 - 63C

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3
Q

What do bacteria need to grow

A

Moisture, temps, food

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4
Q

Signs of food spoilage

A

Sour smell
Sour taste
Mould
Slimy
Too wet/dry

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5
Q

What are yeast

A

Fungi that reproduce by budding
Ferments the sugar in foods

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6
Q

What is mould

A

Fungi that reproduce by spores - contaminate by spores

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7
Q

What is bacteria

A

Reproduce by dividing every 20 minutes, start to die at 70C but their spores can survive

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8
Q

What are enzymes

A

Natural substances, biological catalysts

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9
Q

What is enzymic browning

A

When Enzymes in cytoplasm/oxygen mix with the vacuole substances

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10
Q

How to avoid enzymic browning

A

Add acid
Cool food
Cold water
Blanching

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11
Q

FATTOM

A

Food
Acidity (low)
Temperature
Time
Oxygen
Moisture

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12
Q

What is the temperature of a fridge

A

0-5 C

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13
Q

What temperature is a freezer

A

-18 C

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14
Q

How long does it take for salmonella symptoms to show

A

12-35 hours

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15
Q

How long does it take for listeria symptoms to show

A

1-70 days

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16
Q

How long does it take for staphylococcus aureus symptoms to show

A

1-6 hours

17
Q

How long does it take for campylobacter symptoms to show

A

48-60 hours

18
Q

How long does it take for e-coli symptoms to show

A

12-24 hours

19
Q

Where can you get salmonella from

A

Raw/undercooked meat
Eggs

20
Q

Where can you get listeria from

A

Cheese
Unpasteurised milk
Salad

21
Q

Where can you get staphylococcus aureus from

A

People
Infections
Raw milk/dairy

22
Q

Where can you get campylobacter from

A

Raw meat
Dirty water

23
Q

Where can you get e-coli from

A

Beef
Raw milk
Dirty water

24
Q

What are the symptoms of salmonella

A

Diarrhoea
Abdominal pain
Vomiting
Fever

25
Q

What are the symptoms of listeria

A

Flu-like
Miscarriage

26
Q

What are the symptoms of staphylococcus Aureus

A

Abdominal pain
Vomiting
Low temperature

27
Q

What are the symptoms of campylobacter

A

Diarrhoea
Nausea
Fever

28
Q

What are the symptoms of e-coli

A

Diarrhoea
Vomiting
Fever
Kidney damage
Abdominal pain

29
Q

What is bacteria used for in food production

A

Stilton/blue cheese
Soy sauce
Dairy products

Food Tech Gcse (14 decks)

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