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ASCI 211 > Factors Affecting Microbial Growth and Food Handling > Flashcards

Factors Affecting Microbial Growth and Food Handling Flashcards

1
Q

Common Bacteria

A

E. coli (Escherichia Coli), Salmonella, Norovirus, Listeria

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2
Q

How many known pathogens are there?

A

31 but there are millions out there we just can’t culture them

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3
Q

Food Spoilage Bacteria

A

Pediococcus, Lactococcus, Acinetobacter

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4
Q

Are viruses alive?

A

No, viruses are dead because they are particles

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5
Q

Bacteria that can hurt you

A

Staphylococcus, Clostridium botulinum, Prion disease, Campylobacter

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6
Q

Where is Staphylococcus found?

A

High salt, raw food, raw milk

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7
Q

Is Staphylococcus aerobic or anerobic?

A

Anerobic

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8
Q

What is it called when Staphylococcus infects someone?

A

Intoxication

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9
Q

Where is Clostridium botulinum found?

A

Canned food

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10
Q

Is Clostridium botulinum aerobic or anerobic?

A

Anerobic

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11
Q

What is meant by Prion disease?

A

Creutzfeldt-Jakob disease/Bovine Spongiform Encephalopathy (Mad Cow Disease)

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12
Q

Where is Prion Disease found?

A

Infected meat

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13
Q

Is Prion Disease anerobic or aerobic?

A

Anerobic

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14
Q

Where is Campylobacter found?

A

Raw or undercooked poultry

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15
Q

Is Campylobacter aerobic or anerobic?

A

TRICK QUESTION! It is Microaerobic meaning it need very small amounts of oxygen.

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16
Q

What is a self limiting disease?

A

A disease that can resolve itself within a few days, doesn’t require medical intervention

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17
Q

What are some self limiting diseases?

A

Norovirus, Campylobacter, Salmonella

18
Q

What does YOPI stand for?

A

Y: Young
O: Old
P: Pregnant
I: Immunocompromised

19
Q

What is YOPI used for?

A

It indicates who is at the highest risk for being infected most often

20
Q

What are the top 6 most common food poisoning symptoms?

A
  1. Diarrhea
  2. Vomiting
  3. Nausea
  4. Fever
  5. Stomach Cramps
  6. Dehydration
21
Q

How many layers does a gram positive bacteria cell have?

A

Three

22
Q

What are the layers of a gram positive bacterial cell?

A

Inside: Plasma membrane

Middle: Periplasmic space

Outside: Peptidoglycan

23
Q

What color does a gram positive bacterial cell stain?

A

Purple

24
Q

How many layers does a gram negative bacterial cell have?

A

Five

25
Q

What are the layers of a gram negative bacterial cell?

A

Inside: Plasma membrane

Middle: Periplasmic space, Peptidoglycan, Periplasmic space

Outside: Outer membrane (Lipopolysaccharide and protein)

26
Q

What color do gram negative bacterial cells stain?

A

Pink.

27
Q

What are the four types of microorganisms?

A

Protozoa, Viruses, Fungi, Bacteria

28
Q

Is protozoa eukaryotic or prokaryotic?

A

Eukaryotic

29
Q

What are the two microorganisms that are single cell organisms?

A

Protozoa and Bacteria

30
Q

What kind of microorganism is fungi? How many cells does it have?

A

Single or multi-celled organism (mold/yeast)

31
Q

How many cells do viruses have?

A

No cells, non-cellular organism and require a host to grow

32
Q

Are bacteria alive or dead?

A

Alive

33
Q

What shape are bacilli?

A

Rods

34
Q

What chape are cocci?

A

Spherical

35
Q

What shape are spirilla?

A

Sprial

36
Q

What are the types of cell grouping?

A

Pairs, clusters, and chains

37
Q

How do bacteria grow?

A

Binary Fission

38
Q

What is binary fission?

A

Mitosis but for bacteria (cells split into two new bodies)

39
Q

Do protozoa use binary fission?

A

No, they are an eukaryote so they go through mitosis.

40
Q

What are the differences in staining between gram positive and gram negative bacteria?

A

In gram-negative the bacteria is white during decolorization, whereas gram-positive is purple.

In gram-negative the bacteria is pink during the counter stain with Safranin, whereas gram-positive is purple.

ASCI 211 (3 decks)

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