Unit 2 exam

Intestinal bacteria produces gas when they metabolize fiber

True.

Compared to carbohydrate, fat is:

a more concentrated form of energy

The phosphate group on a phospholipid:

enables phospholipids to dissolve in water

Linoleic and linolenic fatty acids are both:

essential fatty acids

Trans-fatty acids are most abundant in

foods made with partially hydrogenated oils

Invisible fats include the fats in

fried foods

Which of the following substances is a simple carbohydrate

fructose

Food producers hydrogenate unsaturated fatty acids in order to:

give foods a longer shelf life

The lecithin needed for building cell membranes and other functions:

is manufactured by the body

An unsaturated fat:

missing hydrogens within its fatty acid chains

Which of the following foods does not contain cholesterol?

peanut butter

The glycemic index of a food can be measured by comparing the increase in ones glucose levels after consuming a carbohydrate to that caused by a reference food such as:

A. White bread B. Banana C. Ice cream D. Oatmeal Correct answer is A.

The richest source of starch are:

A.Fruits B. Soybeans C. Grains D. Vegetables Correct answer is C.

The non nutritive sweetener sucralose is made from:

A.Sucrose B.aspartine C. Maltose D.fructose Correct answer is A.

The hormone that moves glucose from the blood cells into the cell is:

A.glucagon B.Insulin C. Sucrose D.Testosterone Correct answer is B

The principal carbohydrate used to sweeten homemade iced tea is:

A.glucose B. Galactose C.sucrose D. Fructose Correct answer is C

What happens when blood glucose falls too low?

A.insulin promotes glycogen synthesis in the muscle B. Insulin promotes glycogen synthesis in the liver C.Glucagon promotes breakdown of liver glycogen D. Glucagon promotes breakdown of muscle glycogen Correct answer is C.

Cellulose, pectin, hemicellulose, and gums are:

A.nonnutritive sweeteners B. Sugar Alcohols C.fibers D. Forms of starch Correct answer is C.

A carton of Ice cream displays the following list of ingredients: milk fat and nonfat milk, sorbitol, pecans, cellulose, butter, caramel color, citric acid, aspartame, carrageenan. How many alternative sweeteners are contained in this product

A.one B.two C.three D.four Correct answer is B.

The primary source of energy for the brain and nervous system under normal conditions is:

A.sucrose B.fructose C.glucose D.fatty acids Correct answer is C.

The main factors that influence the GI value of a food include all of the following except the

A.time of the Day the food was consumed B. Type of fiber in the food C. Structure of the starch D. Manner in which the food was processed Correct answer is A.

Consumers should keep the following in mind about foods made with fat substitutes:

They still provide kcalories

Fiber- rich diets contribute to weight loss by causing a person to feel full.

True

Most dietary fibers provide little or no energy.

True.

Not all fatty acids have the same cholesterol-raising effect.

True.

Which of the following foods is a naturally rich source of monounsaturated fatty acids?

avocado

If your diet supplies more sugar and starch than you need, the excess can be

converted into fat and stored.

Enzymes called _____ digest fats in the mouth, stomach, and intestine.

lipases

Which of the following is a rich source of monounsaturated fat?

olive oil

Fibers are categorized by:

their chemical and physical properties

Unsaturated fats should be consumed in moderation because:

they are high in kcalories

Which of the following would be the best way to increase your intake of omega-3 fatty acids?

Eat more fish.

This morning, Margie's fasting blood glucose level indicated that she has hyperglycemia and pre-diabetes. Based on this info, her fasting blood glucose level was ___mg/dl

120.

Sarah consumes approximately 2000 kcal/day. According to recommendations of the Dietary Guidelines (2010), she should limit her saturated fat intake to fewer than ____ kcal/day.

200.

Compounds that protect others from oxidation by being oxidized themselves are:

Antibodies

Soluble fiber is broken down completely by bacteria in the small intestine

False

A client consumes 2000kcalories per day and 200g of carbohydrate. This person meets the current dietary recommendations for carbohydrate intake

False.

Carbohydrate absorption occurs almost exclusively in the stomach.

False.

Diets high in fiber increase the risk of type 2 diabetes.

False.

High intakes of saturated and trans fats increase the risk of heart disease by lowering LDL and raising HDL cholesterol.

False.

Hypoglycemia is a condition that occurs when blood glucose level is too high.

False.

Phil is a healthy college student. When he wakes up in the morning, he can't wait to eat breakfast. While he is asleep and before he consumes food or beverages, his pancreas secretes _____ to maintain his blood glucose level within normal limits.

Glucagon.

Duncan's diet contains high amounts of protein and fat, but it is very low in carbohydrates. As a result of following this diet, duncan's body forms more ___ than normal.

Ketone bodies

Which of the following lipoproteins contains the highest percentage of cholesterol?

LDL

Which of the following food group always contains fat?

Meat.

According to Shawn's physician, Shawn has a high risk of ___ because his waist circumference is 42 inches, his blood pressure consistently measures 140mm Hg/90mm and his fasting blood glucose levels is 110mg/dl

Metabolic syndrome

Know the normal, prediabetes, and diabetes range.

Normal is less than 100mg/dl, prediabetes is 100mg/dl to 125mg/dl, and diabetes is 126mg/dl

Lecithin is a type of ____

Phospholipid

Fat functions in the body to:

Provide energy

Today's recommendations for fat intake emphasize:

Replacing saturated and trans fats with unsaturated fats

What is the major difference between soluble and insoluble fiber?

Soluble fiber dissolves or sweeps in water, whereas insoluble fiber generally does not change in water.

Which of the following substances is a complex carbohydrate?

Starch

Macey would like to sweeten her tea with a nonnutritive sweetener that provides no calories per teaspoon. Which of the following sweeteners would she use?

Sucralose

Which of the following statements is true?

Sucrose is a source of glucose.

Virtually unlimited amounts of body fuel can be stored by the:

adipose tissue

The liver uses cholesterol to make _____.

bile

A fatty acid with two or more double bonds is described as:

polyunsaturated

When exposed to oxygen, fats can become _____

rancid

Which of the following substances is a complex carbohydrate?

soluble fiber

subcutaneous fat does not

stimulate red blood cell production

Which of the following sweeteners provides 4kcal/g?

sucrose

A rich source of polyunsaturated fatty acids is:

sunflower oil

Carbohydrates should contribute approximately ___% of the total daily energy intake.

A. 35-40 B.45-55 C.45-65 D.55-60 Correct answer is C.

The glycemic index ranks carbohydrate foods based on their effect on:

A. Blood pressure B. Weight C. Blood cholesterol levels D. Blood glucose levels Correct answer is D

Excess glucose in the blood is converted into glycogen and stored primarily in the:

A. Brain and liver B. Liver and muscles C. Blood cells and Brain D. Pancreas and brain Correct answer is B.

The leading source of added sugars in the American diet is:

A. Chocolate bars and other candy treats B. Baked goods such as cookies and cakes. C.fruit packed in heavy syrup D. Soft drinks and other sugar-sweetened beverages Correct answer is D.

High fructose corn syrup and fruit juice concentrate are examples of___

A. Disaccharides B.starches C.Fibers D. Added sugars Correct answer is D

Foods richest in carbohydrates include:

A. Eggs, cheese, and milk. B. Milk, nuts, and oils. C. Rice, broccoli, and apples. D. Mayonnaise, butter, and salad dressing Correct answer is C.

Three monosaccharides important in nutrition are:

A. Glucose,lactose, and fructose B.Fructose, Glucose, and sucrose. C. Fructose, glucose, galactose D. Galactose, sucrose, and lactose. Correct answer is C

The main function of carbohydrates in the body is to:

A. Insulate the body to prevent heat loss B. Synthesize fat C. Provide material for synthesizing cell walls D. Furnish the body with energy Correct answer is D

Which of the following groups contains the least carbohydrates?

A. Milk and cheese B. Grains and starchy vegetables C. Grains and fruits D. Fruits and vegetables Correct answer is A.

One molecule of maltose can yield___ molecules of glucose

A. One B. Two C.three D. four Correct answer is B.

All of the following fibers are used by the food industry as additives or stabilizers except:

A. Pectins B. Gums C. Lignins D. Mucilages Correct answer is C.

The sugars in fruits, vegetables, grains, and milk are:

A. Usually added to these foods. B. Considered discretionary kcalories C. Naturally occurring D. Resistant to digestion Correct answer is C.

Which of the following statements is true?

The human digestive tract does not produce enzymes that digest dietary fiber.