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Discussion 1. Stevia, although sweet, has a bitter aftertaste that lingers. How do the scientists improve sweet taste, production and cost for next generation of non-calorie sweeteners?

Discussion 2. Choose healthier one between honey and high fructose corn syrup? Explain reason!

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Sixta Kovacek
Sixta KovacekLv2
28 Sep 2019

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Related questions

1. Which of the following statements about E. coli bacteria is TRUE?

A. It is only found in undercooked beef.

B. It is only found in unpasteurized milk.

C. It is a harmless bacterium.

D. It only affects foods prepared outside of the home.

E. It has been found in undercooked beef, unpasteurized milk and juice, and raw fruits and vegetables.

2. Where can food preparation result in foodborne illness?

A. private homes

B. catering/banquet facilities

C. institutions such as schools or prisons

D. restaurants

E. All of the above.

3. Which of the following results in the highest number of cases of foodborne illness?

A. norovirus

B. Salmonella

C. Clostridium perfringens

D. Campylobacter

E. Staphylococcus aureus

4. Pregnant women have a significantly higher risk of contracting foodborne illness caused by a specific pathogen. Which is it?

A. E. coli

B. Salmonella

C. Listeria monocytogenes

D. Campylobacter

E. Bacillus cereus

5. Common food and beverage sources of Salmonella include all of the following, EXCEPT

A. eggs

B. poultry

C. unpasteurized milk

D. raw oysters

E. meat

6. In order to prevent illness, those most at risk for foodborne illness should avoid all of the following foods and beverages, EXCEPT

A. raw sprouts (alfalfa, bean, or any other sprout)

B. hot dogs heated thoroughly

C. raw or undercooked eggs or foods containing raw or undercooked eggs

D. raw shellfish and their juices

E. unpasteurized (raw) milk

7. The safe zone for refrigerated foods is to be chilled below

A. 70oF

B. 50oF

C. 41oF

D. 32oF

E. 1oF

8. If everyone who attended a family reunion and ate a freshly prepared meal of carved roast turkey became sick with a foodborne illness, and those who ate the freshly prepared carved roast beef did not, then what aspect of the four steps to food safety would most likely have been the cause?

A. clean

B. separate

C. cook

D. chill

E. None of the above.

9. You purchase deli meat wrapped in plastic from a grocery store, carry it out to your car in a paper bag, and leave it in the car while running errands for another hour. It is 80 degrees outside. Which of the four steps of food safety have you neglected to follow?

A. clean

B. separate

C. cook

D. chill

E. All of the above.

10. What should be used to measure the internal temperature of meat to ensure that it has been cooked thoroughly and to avoid foodborne illness?

A. probe thermometer

B. mercury thermometer

C. appearance of the meat (when it looks done)

D. the oven’s temperature setting

E. cooking time

11. Why is it important for foods to be promptly chilled at the correct, safe temperature?

A. to improve taste

B. to improve appearance

C. to reduce the likelihood of bacterial growth

D. to have leftovers

E. to shorten cooking time

12. Which of the following is TRUE about USDA-certified organic food?

A. healthier than nonorganic food

B. safer than nonorganic food

C. considerably less expensive than non-organic food

D. made up of 50% certified-organic ingredients

E. at least 95% of the agricultural ingredients must be certified organic

13. Which federal agency has the primary legal responsibility for food additives?

A. FDA

B. USDA

C. DHHS

D. NIH

E. CDC

14. Who is LEAST likely to be negatively affected by a foodborne illness?

A. 45-year-old adult with HIV/AIDS

B. 20-year-old healthy college student

C. 80-year-old nursing home resident

D. 15-year-old chemotherapy patient

E. 15-month-old baby

15. Refrigerated leftovers should be eaten or thrown out within , in the interest of health and food safety.

A. 1 day

B. 2 days

C. 4 days

D. 1 week

E. 10 days

16. The FDA has approved food irradiation for all of the following, EXCEPT

A. meat

B. poultry

C. fresh fruits

D. dairy foods

E. fresh vegetables

17. The virus that causes the most foodborne illnesses and a significant number of related hospitalizations is

A. Staphylococcus aureus

B. Campylobacter

C. Salmonella

D. hepatitis

E. norovirus

18. The Food Safety Modernization Act (FSMA) signed in 2011 is praised because of the focus on

A. food taste

B. food defense

C. food prices

D. access to food

E. access to farm land

19. High intake of which food additive has been connected to hyperactivity in some children?

A. artificial food colors (AFC)

B. monosodium Glutamate (MSG)

C. salt

D. citric acid

E. fructose

20. All of the following can increase the likelihood of experiencing food insecurity, EXCEPT

A. poverty

B. unemployment

C. having a family farm

D. living in a food desert

E. cost of nutritious foods

21. Which one of these programs is the largest program in addressing domestic hunger?

A. Special Supplemental Program for Women, Infants, and Children (WIC)

B. Supplemental Nutrition Assistance Program (SNAP)

C. National School Breakfast Program

D. National School Lunch Program

E. Meals on Wheels

22. In the United States, there are several widely sold, common genetically modified (GM) foods. These include all of the following, EXCEPT

A. organic apples

B. corn

C. rice

D. tomatoes

E. soybeans

23. What can influence the world’s food supply?

A. drought

B. flooding

C. civil unrest

D. climate change

E. All of the above.

24. A sustainable food system needs

A. uncontrolled population growth

B. safe and secure food supply

C. rapid climate change

D. constant drough

E. one-crop megafarms

25. Those who argue FOR genetically modified foods cite all of the following, EXCEPT

A. increased supply of food

B. drought-resistant plants

C. increased susceptibility to some pests

D. increased vitamin content in foods

E. improved food taste

26. Composting is an example of which type of sustainable food strategy?

A. buying local

B. purchasing organic foods

C. eliminating industrial meat consumption

D. reducing food waste

E. eating unprocessed foods

27. It is estimated that demand for food will rise by between 70% and 100% by 2050. What is one factor that will contribute to increasing demand?

A. population growth

B. civil unrest

C. unemployment

D. falling incomes

E. existing food insecurity

28. Which of the following is a legitimate potential risk of growing and consuming genetically modified foods?

A. The food tastes better, so people eat more.

B. The food lasts longer but loses nutritional benefits.

C. A plant food could produce a protein that is allergenic to some people.

D. The food may be infested with pests.

E. The food may absorb too much water and cause bloating.

29. Dirty equipment in a food truck has contaminated food as it travels to the grocery store. In which step of the food supply process did the contamination occur?

A. planting

B. production

C. processing and distribution

D. preparation

E. None of the above.

30. Fecal-oral transmission can occur at all of the following times, EXCEPT

A. when a food handler does not wash his/her hands before touching food to be prepared

B. when a daycare worker does not wash his/her hands after changing a baby’s diaper and then picking up another child’s bottle to feed them

C. when a food server cleans the restaurant bathroom and does not wash his/her hands before delivering food plates to a table

D. when animal fecal matter is present in the field where produce is grown and harvested

E. after toys in a daycare facility are soaked in a bleach-and-water solution overnight

31. All of the following are TRUE of parasites, EXCEPT that they can

A. live in a host

B. live on a host

C. multiply in foods

D. be a worm

E. be single-celled

32. The most common symptoms of foodborne illness are

A. bleeding

B. fever

C. nausea, vomiting, and diarrhea

D. diarrhea

E. fever and vomiting

33. Which of the following is one of the most common bacterial causes of diarrheal illness and hospitalizations in the United States and is found in over half of all raw chickens, in addition to being found in raw milk and raw shellfish?

A. Clostridium perfrigens

B. Campylobacter

C. E. coli

D. Staphylococcus

E. meningitis

34. Which type of cheese should a pregnant woman avoid to reduce her risk of contracting a foodborne illness?

A. cheddar cheese

B. Swiss cheese

C. American cheese

D. queso fresco

E. mozzarella cheese

35. What process has been used to reduce the likelihood of foodborne illness experienced by NASA astronauts in space?

A. pasteurization

B. vaccinations

C. irradiation

D. antibiotics

E. antibacterial spacesuits

36. The USDA has recommended safe internal temperatures for foods. Which type of meat must be heated to the highest temperature?

A. turkey and chicken

B. ground beef

C. fully cooked ham (to reheat)

D. fish

E. beef roast

37. Two ways to prevent cross contamination in your kitchen are

A. wash hands, use clean dishes

B. wash hands, reuse plates when needed

C. wash hands, always use same cutting board for raw meats and vegetables

D. wash hands, store raw meats in same grocery bag as other foods

E. wash hands, clean off surfaces with the same cloth used to wipe up floor spills

38. What can food handlers do prior to food preparation to easily and dramatically reduce the likelihood of causing foodborne illnesses?

A. cover their mouth with their hand when coughing

B. wash hands before preparing food

C. wipe feet before entering kitchen

D. take medication to reduce fever before coming to work

E. store raw meat in an uncovered container

39. Who is most at risk for foodborne illness?

A. healthy 20 yr old male

B. 30 yr old female

C. infant 6 mo old female

D. 45 yr old female nurse

E. all the above

40. What is a favorable conditions for bacterial growth in food?

A. foods kept at temp. below 40 degree F

B. food kept at temp. above 140 degree F

C. food with a high moisture content

D. food with a low moisture content

E. very sweet food

TRUE or FALSE (A for true and B for false)

41. Food additives may be used to maintain freshness of food.

42. Foodborne intoxication is caused by ingestion of food that contains a toxin that may be naturally present in the food.

43. Staphylococcus aureus lives on the skin.

44. One foodborne pathogen that pregnant women are often warned against is protozoans.

45. The pathogen Norovirus cause muscle aches and fever.

46. The 1993 Jack in the Box outbreak caused Congress to update the monitoring of meatpacking plants in the United Stated.

47. Cross contamination is the transfer of bacteria or other pathogens from one source or surface to another.

48. Sit-down restaurants are the single setting of preparation responsible for the highest number of illness resulting from foodborne disease outbreaks.

49. Salmonella pathogen causes the most severe illness of all pathogens.

50. The FDA is responsible for regulating the safety of GM crops consumed by humans and animals in the United States.

Based on “Morgan: A case of Diabetes” by Lisa Rubin and Clyde Freeman Herreid (National Center for Case Study Teaching in Science)

The Patient:

Morgan Water is a 27-year old Native American that lives on a reservation in Oklahoma. Nearly ¼ of Morgan’s tribe has diabetes but she has no direct family history of diabetes, heart disease, or other serious conditions. She is however obese (BMI = 32) and leads a sedentary lifestyle. Morgan has been suffering from an increasing persistence of symptoms including unusual thirst, dizziness, blurred vision, and numbness in her right foot. The symptoms have been developing over several months but as she is planning her wedding she attributed them to nerves. She is finally persuaded to see her family doctor. Her non-fasting blood glucose level was elevated so the doctor has her return the next morning for a fasting blood sample so they could more accurately measure her blood glucose and insulin. Her blood results are below:

Test

Morgan’s values

Normal range

Pre-Diabetic range

Diabetic range

Plasma glucose, mg/dl

260

70 -139

140 - 199

≥ 200

Fasting glucose, mg/dl

140

≤ 99

100 - 125

≥ 126

A1C, %

7.6

~ 5

5.7 – 6.4

≥ 6.5

Fasting Insulin, mIU/ml

34

2 - 10

10 - 20

≥ 20

The recommendation of Morgan’s doctor was to improve her exercise, good nutrition, and weight loss. He recommends meeting with a nutritionist to assist Morgan in her weight loss goals. When Morgan got home and told her family the diagnosis they however had LOTS of suggestions on how she can lose weight. Below is a description of the advice given to her by three family members.

Best friend Savannah:

“You know how I’ve been losing weight? Well, I’ve been on the Atkins’ Diet. I heard about it on TV. It’s great! You get to eat steak, chicken wings, and all the good stuff. All you have to do is limit carbohydrate intake. You should definitely give it a try. This diet has been around for years and it has worked for lots of people, including me.”

*Note: Atkin’s Diet recommends: 10% carbohydrates, 55% fats, 35% protein

Brother Alan:

“I think the best thing for you to do is exercise and stop eating all of that pizza and candy and food filled with fat. Our people never used to eat that junk. I say eat meals that are nutritionally balanced and high in fiber and low in refined sugars and saturated fats. And run a lot. Stop sitting around the house.”

Grandfather:

“Morgan, it is true that it is best to live in harmony and balance – to eat a nutritionally balanced diet that includes carbohydrates, proteins, and ‘good’ fats to meet your body’s needs. That is good. But look to your heritage. Our people were never overweight before we started eating ‘civilized’ food. Look to our native diet. I think you should look to traditional herbal remedies for help. What Alan says is true. Exercise is good. But it is sometimes not enough. Our people have always looked to natural medicine for cures. They will lift your spirits and energize you. Then you will lose weight and you will be healthy again. I hear the herbs from the diet shop are safe and good. But you must take them like the medicine label says. It can’t hurt to try them.”

*Note: these herbal supplements Morgan’s grandfather is recommending contain the herb

ephedra (ephedrine).

Question 5:

Given Morgan’s metabolic state, what is the primary fuel source for her cells currently?

A. Carbohydrates (glucose)

B. Fats

C. Proteins

D. It is a balance of all three

Question 6:

Metabolic ketoacidosis is a common problem with diabetics, which is caused by which of the following?

A. Excessive oxidation of fatty acids, leading to an accumulation of ketone bodies in the blood.

B. Excessive oxidation of glucose, leading to an accumulation of ketone bodies in the blood.

C. Excessive oxidation of proteins, leading to an accumulation of ammonia in the blood.

D. Hyperglycemia.

Question 7:

Which weight loss suggestion is designed to achieve some level of ketosis?

A. Atkins Diet

B. Exercise

C. High fiber diet

D. Herbal treatments

Question 8:

One major side effect of the herbal supplement can be hot flashes and increased perspiration due to increased thermogenesis, what is the likely cause of the heat production?

A. Increasing the activity of phosphfructokinase-1.

B. Increasing the activity of the pyruvate dehydrogenase complex.

C. Increasing the activity of citrate synthase.

D. Increasing the activity of uncoupling proteins.

Question 9:

Would substituting fiber and complex carbohydrates (larger % cellulose) for the simple sugars and starches (high sucrose and amylose/amylopectin) help Morgan lose weight, why?

A. Yes, because complex carbohydrates like cellulose are largely indigestible so they pass through

the digestive tract without being absorbed.

B. Yes, cellulose contains less glucose residues than amylose or amylopectin.

C. Yes, because the fructose in sucrose is much more responsible for weight gain than the glucose.

D. No, because cellulose, amylose, and amylopectin are all composed of glucose so it doesn’t

matter.

Question 10:

Which weight loss suggestion will lead to an increased need for gluconeogenesis?

A. Atkins Diet

B. Exercise

C. High fiber diet

D. Herbal treatments

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