food safety test – Flashcards
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foodborne illness
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a disease transmitted to people by food
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pathogens
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found on food more frequently than considered safe
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costs of foodborne illnesses
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loss of customer sales
loss of reputation
negative media
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populations at risk for foodborne illnesses
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elderly
pregnant women
infants
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hazards that make food unsafe
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pathogens
chemicals
foreign objects
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contamination
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the presence of harmful substances in the food
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3 catorgies of hazards of food safety
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biological
chemical
physical
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biological hazards
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pathogens are greatest threat to food safety
viruses, parasites, fungi, and bacteria
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chemical hazards
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foodservice chemicals can contaminate food
cleaners, sanitizers
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physical hazards
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foreign objects
hair, dirt, glass, bandages
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how food becomes unsafe
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purchasing from unsafe sources
failing to cook properly
holding food at incorrect temps
using contaminated equipment
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time-temperature abuse
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food is time-temperature abused when it has stayed too long at temps that are good for the growth of pathogens
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how the growth of pathogens can happen
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food isnt held at the right temperature
not cooked enough to kill pathogens
not cooled right away
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cross-contamination
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pathogens can be transfered from one food surface to another
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4 types of pathogens that can cause food to be contaminated
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viruses, bacteria, parasites, fungi
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characteristics of pathogens
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cannot be smelled, seen, or tasted. but some fungi like mold can change appearance but will not make you sick
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what pathogens need to grow
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Food-they need energy
Acidity- grow best with little or no acid
Temperature-grow in food 41-135 degrees
Time- need time to grow
Oxygen- need oxygen to grow
Moisture-need moisture to grow
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food most likely to become unsafe
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dairy, meats, fish, baked potatoes, tofu/soy, sliced melons, eggs, poultry, shellfish, sprouts, untreated garlic/ oil mixtures
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read-to-eat food
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food that can be eaten without further preparation, washing/cooking
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ways to prevent the spread of viruses
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keep foodhandlers who are vomiting away from food, wash hands, minimize bare-hand contact
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major foodborne illnesses caused by viruses
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Hepatitis A, Norovirus gastroenteritis
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Commonly linked food from these viruses
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Hepatitis A & Norovirus gastroenteritis-shellfish, ready-to eat food, contaminated water
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Most Common symtoms
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Hepatitis A- abdominal pain, nausea, fever
Norovirus gastroenteritis- diarrhea, abdominal pain, nausea, vomiting
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prevention measures
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handwashing, approved suppliers
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Information on Hepatitis A
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found in feces of infected person
cooking does not destroy
transfered from person to food by infected person's fingers
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Information on Norovirus gastroenteritis
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found in feces of infected person
can make person sick
very contagious
person can become contagious within hours
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Characteristics of Bacteria that cause Foodborne illness
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Temperature- can be controlled by keeping it out of the "danger zone"
Growth-if FAT TOM conditions are right, bacteria will rapidly grow
Form-change into spores to keep from dying
Toxin-make toxins in food as they grow
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Commonly linked food with BACILLUS CEREUS
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meat, produce, rice/grains/dairy
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Commonly linked food with LISTERIOSIS
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meat, ready-to-eat food, dairy
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linked food with HEMORRHAGIC COLITIS
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meat, produce
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linked food with CLOSTRIDIUM PERFRINGENS
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poultry, meat
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linked food with BOTULISM
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produce
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linked food with SALMONELLOSIS
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poultry, eggs, produce, dairy
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linked food with SHIGELLOSIS
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ready-to-eat food, produce, contaminated water
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linked food with STAPHLOCOCCAL
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ready-to-eat food
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linked food with VIBRIO
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shellfish, contaminated water
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symtoms with BACILLUS CEREUS
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diarrhea, nausea, vomiting
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symtoms with LISTERIOSIS
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NONE
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symtoms with HEMORRHAGIC
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diarrhea, abdominal pain
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symtoms with CLOSTRIDIUM
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diarrhea, abdominal pain
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symtoms with BOTULISM
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nausea, vomiting
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symtoms with SALMONELLOSIS
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diarrhea, abdominal pain, vomiting, fever
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symtoms with SHIGELLOSIS
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diarrhea, abdominal pain, fever
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symtoms with STAPHYLOCOCCAL
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abdominal pain, nausea, vomiting
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symtoms with VIBRIO
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diarrhea, abdominal pain, nausea, vomiting, fever
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preventing cross-contamination with SALMONELLOSIS
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farm animals carry this, small amount can make you sick, found in person's feces
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practicing hygience with SHIGELLOSIS
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found in feces of person, occur when person eates contaminated food or water, flies can transfer bacteria feces to food
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Informations on Vibrio
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found in waters where shellfish are harvested
grow very fast at temperatures in the middle of the "danger zone"
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Characteristics of parasites
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Growth-cannot grow in food. need to be in an animal
Transfer-will cause illness. animals can be the host by having it in feces
Contamination-contaminate both food/water
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Fungi
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pathogens that only sometimes make people sick. they spoil food. found in air, soil, plants, water, and sometimes in food. molds/yeasts are examples
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Fungi information
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Effects-molds spoil food/somtimes cause illness
Toxins-some produce toxins
Growth-grow well in acid/any condition
Temperature-freezer temperatures may slow growth but will not kill
Prevention-throw out all food to prevent illness
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Yeast information
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Signs of Spoilage-smell or taste like alcohol
Growth-grow in acidic foods
Prevention-throw out all food
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Biological Toxins
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made by pathogens. they come from a plant of animal
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Seafood Toxins
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cant be smelled or tasted. cant be killed by cooling the temperature
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Mushroom Toxins
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caused by eating toxic wild mushrooms collected by amateur hunters. are not destroyed by cooking/freezing
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Plant Toxins
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illnesses from plant toxins usually happen because an operation has purchased plants from unapproved suppliers.
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Toxic metals
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some utensils and equipment contain toxic metals that can contaminate acidic food. This illness is caused by storing acidic food w/ equipment containing toxic metals
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Examples of Toxic metals
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lead, copper, zinc