Nutrition chapter 5

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問題数 65 • 2024/06/02

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問題一覧

Which of the following describes lipids?

organic substances that are insoluble in water

Which of the following are NOT major classes of dietary lipids?

glycogens

What is the primary form of fat in the diet?

triglycerides

A triglyceride is composed of

three fatty acids and one glycerol.

Medium-chain fatty acids are how many carbon atoms in length?

at least 6

A fatty acid that contains a chain of ten carbons and one double carbon bond is a

monounsaturated, medium-chain fatty acid.

Which of the following fatty acids is generally solid at room temperature?

saturated

Which of the following foods are the BEST sources of monounsaturated fatty acids?

olive oil and cashew nuts

Which of the following foods are HIGHEST in saturated fatty acids?

butter and palm kernel oil

Which of the following is the BEST source of polyunsaturated fatty acids?

corn oil

Saturated fats are

found in salmon and eggs.

The process of straightening an unsaturated fatty acid to create a more solid fat that resists rancidity is called

hydrogenation.

Which of the following statements is TRUE about trans fatty acids?

Foods with a Nutrition Facts panel claiming "zero" trans fats per serving may actually contain trans fats.

Which of the following ingredients on the label of a box of cookies would alert you to the presence of trans fatty acids?

partially hydrogenated vegetable oil

Which of the following is a rich source of linoleic acid?

peanut oil

Which of the following is TRUE about essential fatty acids?

We need to obtain essential fatty acids from food.

Why are phospholipids NOT classified as essential nutrients?

Our bodies manufacture phospholipids.

Which of the following statements is FALSE about sterols?

Sterols contain a glycerol backbone and one fatty acid.

A key components) of the cell membrane is/are

phospholipids.

Sex hormones and adrenal hormones are derived from which class of lipid?

sterols

Which of the following food items would contain the highest amount of saturated fat?

a tablespoon of melted butter

Which of the following is NOT a function of fat in the human body?

Consumption of fat helps stimulate our appetite.

Which of the following organs does NOT assist in the digestion of lipids?

esophagus

The vast majority of fat digestion and absorption occurs in the

small intestine

To facilitate the digestion of dietary fats, the gallbladder stores and releases a substance known as

bile

In the process of emulsification of triglycerides

bile salts separate large fat droplets into smaller droplets.

Where in the body are the majority of triglycerides stored for future energy needs?

adipose tissue

Which lipoprotein is produced in the enterocytes and transports dietary fat into the lymphatic system?

chylomicron

Fat leaves the chylomicron and moves into adipose cells when the chylomicron comes into contact with

lipoprotein lipase.

How many Calories does 25 grams of fat provide?

225

During exercise, which of the following triggers the breakdown of stored fat?

adrenaline

Which of the following is an essential fatty acid?

linoleic acid

Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) can be derived in limited quantities from

alpha-linolenic acid.

The Acceptable Macronutrient Distribution Range (AMDR) for fat is what percentage of total energy intake?

no more than 35%

Which of the following foods contains hidden fats?

chocolate cake

Which of the following species of fish would likely contain the highest levels of contaminants?

swordfish

Which of the following statements is FALSE regarding the process of hydrogenation?

Hydrogenation gives the fatty acid chain more kinks.

Which of the following is a fat replacer?

olestra

Research has found that replacing your saturated fat intake with added sugars increases your risk for

cardiovascular disease.

The major form of fat in both food and the body is

triglycerides.

Partially hydrogenated oils (PHOs) are

not allowed in foods produced in the U.S. after 2018.

Which of the following are excellent sources of unsaturated fats?

nuts and nut butters

How much trans fat is recommended in the diet?

as little as possible

The front of a box of chocolate cookies claims that they are "low-fat." If Gabriel eats one serving (two cookies), he will likely consume about

3 grams or less of fat.

In people who are regularly physically active, extra fat consumed in the diet is stored first in

muscle tissue.

What is the daily recommended intake of saturated fat?

less than 10% of total energy intake

The most common sterol in our diet is

cholesterol.

Which of the following populations should entirely avoid eating shark, swordfish, and other fish with high levels of mercury?

pregnant and breastfeeding women

Fatty acids released from fat stores travel in the blood attached to the protein

Albumin

How many double bonds does a saturated fatty acid contain between carbons in the chain?

none

The spherical compounds made up of bile and phospholipids that transport dietary fat into the enterocytes are

micelles.

Which type of fatty acid has hydrogen atoms located on the same side of the double bond?

cis

Your risk for cardiovascular disease is increased if you consume a diet high in

trans fatty acids.

Nuts are a good source of

healthful unsaturated fats.

The 2015 Dietary Guidelines Advisory Committee found that saturated fat intake is significantly higher among Americans who

frequently eat fast food.

Yesterday Nadia consumed 250 grams of carbohydrate, 75 grams of protein, and 60 grams of fat. What percentage of calories of her days intake came from fat?

29%

Which of the following is a rich source of monounsaturated fatty acids, making it a good choice for cooking and baking?

canola oil

Raymond is trying to decrease his intake of saturated fat. Which of the following items would you recommend he add to his coffee?

low-fat milk

What role do polyunsaturated fatty acids play in the brain and spinal cord?

They help transmit information between cells.

Which of the following statements about cholesterol is TRUE?

There appears to be no direct link between dietary cholesterol and cardiovascular disease.

A new group of fat replacers has been developed using which of the following?

proteins

Federal nutritional recommendations advise that you eat fish

twice weekly.

The majority of saturated fat in the American diet comes from

pizza, tacos, burgers, and sandwiches containing meat and/or cheese.

Body fat stores are

especially harmful in the abdominal region.

While you are sleeping, approximately how much of the energy your cells use is derived from fats?

30-70%