NUTRITION 100 EXAM 1 2025 QUESTIONS AND
ANSWERS GRADED A+
What are the essential fatty acids?
Linoleic (omega-6) and linolenic (omega-3). Both are types of polyunsaturated
fatty acids. They are essential because the body cannot produce omega-6 and
omega-3 fatty acids on its own, and therefore must obtain it through diet. However,
Americans consume much more omega-6 fatty acids than omega-3.
Triglyceride
The most common type of lipid found in foods and in the body. Triglycerides are
also known as fats.
Oils
Oils are lipids that are liquid at room temperature: particularly made up of
unsaturated fatty acids. Think olive oil (mostly monounsaturated). Butter is an
example of a saturated fatty acid food that is solid at room temperature.
What does emulsify mean?
,It means to keep incompatible substances such as water and oil together when
mixed. Emulsifiers are phospholipids because they have unique water and fat
loving properties.
What are sterols?
They are lipids that do not consist of glycerol or fatty acids. They are composed of
four connecting rings of carbon and hydrogen. The most commonly known sterol
is cholesterol.
Where does the majority of fat digestion occur?
Small intestine.
What enzyme is responsible for fat digestion?
Pancreatic lipase.
Dietary fat helps the body absorb which vitamins?
Fat soluble vitamins A, D, E, K
What is the AMDR of fat?
20-35% of daily calories.
, What foods are particularly high in omega-3 fatty acids (linolenic)?
Flaxseeds and fish.
What is the primary lipid in the body?
Triglyceride. Cholesterol and lecithin are two other types of lipids but not as
abundant as triglycerides (or fats).
What do fats provide in terms of energy?
Fats provide 9 calories per gram and are a major source of energy in the body.
They are also required for the absorption of fat soluble vitamins.
What does the structure of fats consist of?
Fats contain a glycerol backbone and three attached fatty acids.
Lipids
A broad category of compounds that contain carbon, hydrogen and oxygen which
are insoluble in water.
Fatty acid
ANSWERS GRADED A+
What are the essential fatty acids?
Linoleic (omega-6) and linolenic (omega-3). Both are types of polyunsaturated
fatty acids. They are essential because the body cannot produce omega-6 and
omega-3 fatty acids on its own, and therefore must obtain it through diet. However,
Americans consume much more omega-6 fatty acids than omega-3.
Triglyceride
The most common type of lipid found in foods and in the body. Triglycerides are
also known as fats.
Oils
Oils are lipids that are liquid at room temperature: particularly made up of
unsaturated fatty acids. Think olive oil (mostly monounsaturated). Butter is an
example of a saturated fatty acid food that is solid at room temperature.
What does emulsify mean?
,It means to keep incompatible substances such as water and oil together when
mixed. Emulsifiers are phospholipids because they have unique water and fat
loving properties.
What are sterols?
They are lipids that do not consist of glycerol or fatty acids. They are composed of
four connecting rings of carbon and hydrogen. The most commonly known sterol
is cholesterol.
Where does the majority of fat digestion occur?
Small intestine.
What enzyme is responsible for fat digestion?
Pancreatic lipase.
Dietary fat helps the body absorb which vitamins?
Fat soluble vitamins A, D, E, K
What is the AMDR of fat?
20-35% of daily calories.
, What foods are particularly high in omega-3 fatty acids (linolenic)?
Flaxseeds and fish.
What is the primary lipid in the body?
Triglyceride. Cholesterol and lecithin are two other types of lipids but not as
abundant as triglycerides (or fats).
What do fats provide in terms of energy?
Fats provide 9 calories per gram and are a major source of energy in the body.
They are also required for the absorption of fat soluble vitamins.
What does the structure of fats consist of?
Fats contain a glycerol backbone and three attached fatty acids.
Lipids
A broad category of compounds that contain carbon, hydrogen and oxygen which
are insoluble in water.
Fatty acid
