The Ultimate How Cholesterol Works Quiz

Estimated Completion Time
2 min
The Ultimate How Cholesterol Works Quiz
Image: iStockphoto.comEduard Härkönen

About This Quiz

You hear about cholesterol all the time, but do you really know what cholesterol is and how it affects your health? Everyone should be educated on this topic, as poor cholesterol management can significantly impact overall health. Take this quiz to find out how much you really need to know.
What percentage of the American population has cholesterol within the “high” range?
5 percent
20 percent
One fifth of the American population has cholesterol within the “high” range. Cholesterol within the “high” range far exceeds recommended cholesterol levels.
40 percent

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Where is cholesterol found?
in food
in food and blood
in food, blood and human cells
Cholesterol is in many foods, your bloodstream and in all your cells.

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What does cholesterol look like?
hard like cold butter
thick and watery like milk
soft like warm wax
If you were to put a bunch of cholesterol together, it would look and feel like soft wax.

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Cholesterol is essential for:
sex hormones
digestion
both of the above
Cholesterol plays an important role in several essential bodily functions. It helps with the creation and maintenance of sex hormones and cell membranes, it helps with food digestion, and it helps with skin maintenance.

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What major bodily organ produces cholesterol?
liver
Cholesterol is primarily made by the liver, at about 1,000 milligrams per day. Cholesterol is also made by the cell lining of the small intestine and by other cells in the body.
kidney
pancreas

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How much cholesterol does our body need from food each day?
none
Our body produces sufficient cholesterol all on its own. We actually don't need any additional cholesterol from food for our body to function properly.
50 mg
100 mg

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What percentage of your blood cholesterol is derived from food?
15 percent
Only 15 percent of your blood cholesterol is from food. The other 85 percent of your blood cholesterol is produced by your body.
25 percent
50 percent

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What is atherosclerosis?
another term for high cholesterol
a form of heart disease
plaque build up in blood vessels
Atherosclerosis is excess plaque build-up in the arteries, which can lead to blocked blood vessels. High cholesterol causes atherosclerosis.

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What may happen when blood vessels become blocked with plaque?
stroke in the brain
heart attack
both of the above
When the coronary arteries in the heart become blocked, a heart attack may occur. Similarly, a blocked blood vessel in the brain may lead to a stroke.

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What is the recommended daily intake of cholesterol?
under 300 milligrams
The American Heart Association recommends limiting daily intake of cholesterol to 300 milligrams or less.
under 400 milligrams
under 500 milligrams

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What are apoproteins?
They kill bad cholesterol.
They are carrier proteins for cholesterol.
Apoproteins are carrier molecules that are composed of protein. They help with the transportation of cholesterol in the body.
They help us digest cholesterol.

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What are lipoproteins?
They kill bad cholesterol.
They kill good cholesterol.
A combination of apoproteins and cholesterol.
When apoproteins combine with cholesterol, they form a compound called lipoproteins.

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Low-density lipoproteins are also referred to as _____________.
bad cholesterol
Low-density lipoproteins (LDL) are known as bad cholesterol, since higher levels of LDL particles cause health problems and cardiovascular disease.
good cholesterol
inactive cholesterol

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What makes good cholesterol so good?
protects against heart attacks
protects against strokes
both of the above
Good cholesterol, also known as high-density lipoproteins (HDL), protects against artery blockage. Good cholesterol helps with removing excess cholesterol from arteries and transports it to the liver for disposal.

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What are the consequences for the liver if there are high levels of LDL in the blood?
reduced LDL receptors
If a liver cell has an excess of cholesterol, it will begin reducing its number of LDL receptors. This results in increased amounts of LDL in the blood, since the LDL cannot enter the liver cells.
increased LDL receptors
cirrhosis of the liver.

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What is the function of very low-density lipoproteins?
They serve no function and are very harmful to the body.
They help with restoring liver function.
They deliver triglycerides to muscles and fatty tissue.
Very low-density lipoproteins deliver trigylcerides to the body's muscles and fatty tissue, at which point they are converted to low-density lipoprotiens.

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LDL and HDL levels predict risk for heart attacks. Who is at risk?
Anyone with a blood cholesterol level of 275 or greater.
Anyone with low high-density lipoproteins.
both of the above
Both high LDL levels and low HDL levels predict risk for heart attacks, because they contribute to plaque build up in the arteries.

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What dietary habits place you at risk for high cholesterol levels?
eating foods such as hydrogenated vegetable oils and avocados
eating foods such as eggs and red meat
both of the above
Eating foods that contain high levels of saturated fat, such as hydrogenated vegetable oils, as well as eating foods high in cholesterol, such as eggs, places you at risk for high cholesterol levels.

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________ foods from animal origin contain cholesterol.
All
Keep in mind, though, that this does not mean plant-based foods are healthier, as some plant based foods have high saturated fat levels.
Almost all
Some

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When are women most at risk for developing high cholesterol?
during pregnancy
during post-partum
during menopause
Decreased estrogen levels during menopause is believed to cause LDL levels to rise. Women, therefore, are at increased risk of developing high cholesterol during menopause.

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iStockphoto.comEduard Härkönen
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