HNF 150 EXAM 2 2025/2026 Exam
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Reasons why a moderate intake of lipids is an essential part of a healthy
diet - 🧠 ANSWER ✔✔essential since fats provide padding, muscle fuel, an
emergency energy reserve, nutrients, energy, satiety.
Explain the difference between energy density and nutrient density - 🧠
ANSWER ✔✔Energy density is the amount of energy stored in a food
relative to its mass (fats are energy dense, 9 kcal/g)
Nutrient density is how many nutrients a food has relative to its energy
content
Compare the three types of lipids. - 🧠 ANSWER ✔✔Triglycerides: 3 fatty
acids and a glycerol, Phospholipids: makes up cell membranes; hydrophilic
head and and hydrophobic tail to maintain concentration gradients, Sterols:
used to make vitamin D and cholesterol
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,Name 2 essential fatty acids - 🧠 ANSWER ✔✔Omega 6( linoleic acid) and
Omega 3(linolenic)
Why are Omega 6 and Omega 3 essential fatty acids? - 🧠 ANSWER
✔✔The body cannot make these two so we must obtain from the food,
important for growth and development, vision, assist in gene regulation etc.
Describe the process of digestion and absorption of triglycerides - 🧠
ANSWER ✔✔in the mouth, the hard fats are melted. When they enter the
stomach, lingual lipase hydrolyzes it to make a diglyceride and fatty acid. In
the SI, fat is emulsified by bile and pancreatic lipase converts it to
monoglycerides, fatty acids and glycerol
Describe the process of digestion and absorption of small fatty acid chains
- 🧠 ANSWER ✔✔get absorbed into the bloodstream and travel to the liver
via the portal vein
Describe the process of digestion and absorption of large chain fatty acids -
🧠 ANSWER ✔✔merge into micelles to be absorbed into intestinal cells,
once they're inside the intestinal cells, they don't immediately enter the
bloodstream, the monoglycerides and fatty acids assemble into new
triglycerides and are packaged up into a chylomicron. The chylomicron is
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,released into the lymphatic system which connects the bloodstream by
flowing into a large vein near the neck.
Describe lipid transport - 🧠 ANSWER ✔✔the movement of lipids to different
parts of the body, where needed. If they're not needed they're stored in
adipose
What do chylomicrons do? - 🧠 ANSWER ✔✔deliver triglycerides, carry
triglycerides from intestinal absorption to body cells
What do VLDLs do? - 🧠 ANSWER ✔✔carry triglycerides from the LIVER to
body cell
What do LDLs do? - 🧠 ANSWER ✔✔deliver cholesterol from the liver to
cells that require cholesterol
What do HDLs do? - 🧠 ANSWER ✔✔removes excess cholesterol from
destroyed or damaged cells, bringing it back to the liver for use or disposal
as bile
List the properties of saturated acids - 🧠 ANSWER ✔✔made of carbons
linked by single bonds saturated with hydrogen (solid at room temperature)
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, List the properties of polyunsaturated acids - 🧠 ANSWER ✔✔made of
carbons and have more than one double bond "kink" in it (liquid at room
temp)
List the properties of monosaturated fatty acids - 🧠 ANSWER ✔✔has one
double bond at the point of unsaturation, causes a kink, not as many
hydrogens.
List the properties of trans fatty acids - 🧠 ANSWER ✔✔hydrogens are on
opposite sides of the fatty acid, make it rigid
Food sources for cholesterol include - 🧠 ANSWER ✔✔animal foods like
meat, eggs, fish, butter, poultry etc.
Food sources of monounsaturated fatty acids include - 🧠 ANSWER
✔✔olive oil, avocado oil, and canola oil
Food sources of polyunsaturated fats - 🧠 ANSWER ✔✔sunflower oil, corn
oil, soybean oil, safflower oil
Food sources of trans fats - 🧠 ANSWER ✔✔peanut butterm crisco
oil(shortening), and stick margarine
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Questions and Detailed Answers | Get it
100% Correct Answers
Reasons why a moderate intake of lipids is an essential part of a healthy
diet - 🧠 ANSWER ✔✔essential since fats provide padding, muscle fuel, an
emergency energy reserve, nutrients, energy, satiety.
Explain the difference between energy density and nutrient density - 🧠
ANSWER ✔✔Energy density is the amount of energy stored in a food
relative to its mass (fats are energy dense, 9 kcal/g)
Nutrient density is how many nutrients a food has relative to its energy
content
Compare the three types of lipids. - 🧠 ANSWER ✔✔Triglycerides: 3 fatty
acids and a glycerol, Phospholipids: makes up cell membranes; hydrophilic
head and and hydrophobic tail to maintain concentration gradients, Sterols:
used to make vitamin D and cholesterol
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED 1
,Name 2 essential fatty acids - 🧠 ANSWER ✔✔Omega 6( linoleic acid) and
Omega 3(linolenic)
Why are Omega 6 and Omega 3 essential fatty acids? - 🧠 ANSWER
✔✔The body cannot make these two so we must obtain from the food,
important for growth and development, vision, assist in gene regulation etc.
Describe the process of digestion and absorption of triglycerides - 🧠
ANSWER ✔✔in the mouth, the hard fats are melted. When they enter the
stomach, lingual lipase hydrolyzes it to make a diglyceride and fatty acid. In
the SI, fat is emulsified by bile and pancreatic lipase converts it to
monoglycerides, fatty acids and glycerol
Describe the process of digestion and absorption of small fatty acid chains
- 🧠 ANSWER ✔✔get absorbed into the bloodstream and travel to the liver
via the portal vein
Describe the process of digestion and absorption of large chain fatty acids -
🧠 ANSWER ✔✔merge into micelles to be absorbed into intestinal cells,
once they're inside the intestinal cells, they don't immediately enter the
bloodstream, the monoglycerides and fatty acids assemble into new
triglycerides and are packaged up into a chylomicron. The chylomicron is
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED 2
,released into the lymphatic system which connects the bloodstream by
flowing into a large vein near the neck.
Describe lipid transport - 🧠 ANSWER ✔✔the movement of lipids to different
parts of the body, where needed. If they're not needed they're stored in
adipose
What do chylomicrons do? - 🧠 ANSWER ✔✔deliver triglycerides, carry
triglycerides from intestinal absorption to body cells
What do VLDLs do? - 🧠 ANSWER ✔✔carry triglycerides from the LIVER to
body cell
What do LDLs do? - 🧠 ANSWER ✔✔deliver cholesterol from the liver to
cells that require cholesterol
What do HDLs do? - 🧠 ANSWER ✔✔removes excess cholesterol from
destroyed or damaged cells, bringing it back to the liver for use or disposal
as bile
List the properties of saturated acids - 🧠 ANSWER ✔✔made of carbons
linked by single bonds saturated with hydrogen (solid at room temperature)
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619652435. TERMS OF USE. PRIVACY STATEMENT. ALL RIGHTS RESERVED 3
, List the properties of polyunsaturated acids - 🧠 ANSWER ✔✔made of
carbons and have more than one double bond "kink" in it (liquid at room
temp)
List the properties of monosaturated fatty acids - 🧠 ANSWER ✔✔has one
double bond at the point of unsaturation, causes a kink, not as many
hydrogens.
List the properties of trans fatty acids - 🧠 ANSWER ✔✔hydrogens are on
opposite sides of the fatty acid, make it rigid
Food sources for cholesterol include - 🧠 ANSWER ✔✔animal foods like
meat, eggs, fish, butter, poultry etc.
Food sources of monounsaturated fatty acids include - 🧠 ANSWER
✔✔olive oil, avocado oil, and canola oil
Food sources of polyunsaturated fats - 🧠 ANSWER ✔✔sunflower oil, corn
oil, soybean oil, safflower oil
Food sources of trans fats - 🧠 ANSWER ✔✔peanut butterm crisco
oil(shortening), and stick margarine
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER:
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