Lipds

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Margarine is an example of:

Trans fat

High levels of triglycerides in the blood are associated with increased risk of

heart disease.

Chylomicrons transports lipids via which body system?

lymphatic

Oleic acid is an example of a

monounsaturated fatty acid

A fatty acid that has one double bond is called a

monounsaturated fatty acid.

All steroids have:

4 carbon rings

Max eats 2,400 calories per day and wants no more than 30 percent of his calories to be from fat. What is the maximum number of fat grams he can eat in a day?

80

Testosterone is:

A lipid

Who is most at risk for developing cardiovascular disease?

A man over age 45

What happens to fats in the stomach?

They float on the water chyme but don't get digested

Which is correct regarding trans fats?

They raise LDL and lower HDL.

Why do high fat meals make you feel full?

They slow stomach emptying and digestion due to high absorption efficiency

Which is considered "good" cholesterol?

HDL

Which is not a consequence of low lipid levels in humans?

Imbalance of nutrients

In what form do lipids travel in the blood?

In the form of lipoproteins

How much linoleic acid do you need per day?

12-17 g/day

The current AMDR recommendation for fat in the American diet is

20 to 35 percent.

Which benefit is associated with omega-3 fatty acids?

All these answers are correct.

Which of the following statements best describes American food consumption over the past couple of decades?

Both fat consumption and kilocalorie consumption have increased.

Which is NOT a lifestyle risk factor for cardiovascular disease?

Increased fiber intake

How does fiber affect fats?

It decreases absorption of fats

What happens when fats are broken down without glucose fragments?

Ketosis

Which of the following statements is true about the composition of lipoproteins?

LDL contains more cholesterol than HDL or VLDL.

Which of the following is the best recommendation for good health?

Limit cholesterol and saturated fat.

Omega-6 is also known as:

Linoleic acid

Omega-3 is also known as:

Linolenic acid

Which of the following is true of lipids?

Lipids are hydrophobic.

Lipids in the small intestine are transported to:

Liver

How do HDLs affect blood cholesterol?

Lower blood cholesterol

Pure lipids are transported in:

Lymph

A triglyceride with one double bond is called:

Monounsaturated

Where are lipids absorbed?

Small intestine

Unsaturated lipids:

Tend to be liquid at room temperature

Which is known as an anabolic steroid?

Testosterone

What are trans fats?

Unsaturated fats made saturated by adding hydrogen

Which acts as an antioxidant and protects LDLs from causing further damage?

Vitamin C

When do most organs use fats for energy?

When blood glucose is low and glycogen is used up

Which of the following dietary lipids is known to contribute to heart disease?

all of the above

How can the problem of rancidity of fatty acids be overcome?

by doing all of the above

Which is the most effective way to improve HDL cholesterol levels?

by engaging in routine exercise

Which of the following is/are a precursor of bile, vitamin D, and some sex hormones?

cholesterol

Which of the following is a major component of cell membranes?

phospholipids

The phosphorus-containing head of a phospholipid attracts water and is

polar.

Fatty acids vary in structure based on all of the following except

presence or absence of hydrogen.

The majority of fat digestion occurs in the

small intestine.

Which category of lipids does not yield energy?

sterols

Which of the following lipids do not contain a glycerol backbone?

sterols

What is produced by hydrogenating unsaturated fat?

trans fat

Which of the following is a common name for fat?

triglycerides

Ninety-five percent of the lipids in foods and in our body belong to the category of

triglycerides.


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