Lipds
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.