True or false: Bile is a digestive enzyme that breaks down triglycerides.
2 Macronutrients Online Quiz Questions
Use this free practice quiz with 20 questions to review 2 Macronutrients, test your knowledge, and prepare for your next test or exam.
What simple sugar can the body store as glycogen in the liver and muscles?
Starches are long chains of .
Which enzyme begins carbohydrate digestion in the mouth?
- A
Salivary amylase
- B
Pancreatic amylase
- C
Pepsin
- D
Pancreatic lipase
True or false: Essential amino acids must be obtained from food because the body cannot make enough of them.
- A
True
- B
False
Which enzyme begins breaking peptide bonds during protein digestion in the stomach?
An unsaturated fatty acid has one or more carbon–carbon .
Select all the food groups identified as sources of dietary fiber.
- A
Beans and lentils
- B
Whole grains
- C
Nuts and seeds
- D
Sweetened drinks
Select all the options identified as sources of unsaturated fats.
- A
Vegetable oils
- B
Avocados
- C
Many fish
- D
Plain water
Which group of vitamins does dietary fat help the body absorb?
- A
B and C
- B
C and the B vitamins
- C
A, D, E, and K
- D
C and K
After many long-chain fatty acids are repackaged inside intestinal cells, which route do they take first?
- A
Directly into the bloodstream, then through the lymph
- B
Through the lymph, then into the bloodstream
- C
Through the liver, then back into the intestine
- D
Directly into the large intestine
A serving contains 5 g of digestible carbohydrate. Using the average energy yield of 4 kcal/g, how much energy does it provide?
- A
10 kcal
- B
15 kcal
- C
20 kcal
- D
45 kcal
Someone wants to make general, nutrient-conscious food choices. Name one carbohydrate-rich food that commonly provides fiber and one source of unsaturated fat. Then explain why broad dietary guidance should not be treated as a personalized prescription.
Which statement correctly compares the energy provided by the macronutrients?
- A
Digestible carbohydrate and protein provide about 4 kcal per gram, while fat provides about 9 kcal per gram.
- B
All three provide about 4 kcal per gram.
- C
Fat provides about 4 kcal per gram, while carbohydrate and protein provide about 9 kcal per gram.
- D
Carbohydrate provides about 9 kcal per gram, while fat and protein provide about 4 kcal per gram.
How are sucrose and lactose classified based on the number of sugar units they contain?
- A
They are single sugars, like glucose and fructose.
- B
They are double sugars, each made of two sugar units.
- C
They are starches made of long chains of sugar units.
- D
They are types of dietary fiber that resist digestion.
True or false: Bile is a digestive enzyme that breaks triglycerides apart.
- A
True
- B
False
What happens to dietary fiber during digestion?
- A
It is fully broken down into glucose in the stomach.
- B
It is absorbed intact in the small intestine and used as a protein-building block.
- C
It resists full digestion by human enzymes; some can be fermented by microbes in the large intestine.
- D
It is converted into bile before reaching the large intestine.
What is the name of the form in which glucose can be stored in the liver and muscles?
Which description best explains the basic structure of a protein?
- A
A chain of amino acids joined by peptide bonds and folded into a specific shape.
- B
A chain of glucose units joined by peptide bonds.
- C
A glycerol backbone attached to three amino acids.
- D
A collection of fatty acids joined to form a sugar.
A person has reduced pancreatic amylase activity. Which component of a meal would have its digestion most directly affected in the small intestine?