TOPIC PRACTICE TEST • 2026/2027
D440
Macronutrients &
Micronutrients
100-Question Practice Test
Carbohydrates, protein, fats, vitamins, minerals, food sources, deficiency patterns, nutrient
interactions, and clinical application.
100 A-D 100
Practice Questions Multiple Choice Immediate Explanations
Original study and revision material • Clean print-ready format
, D440 Macronutrients & Micronutrients
100 original questions with the answer and explanation immediately after every question.
Instructions: Select the best answer for each question. The correct answer and detailed explanation appear
immediately after every item. Questions focus on D440 macronutrients, micronutrients, food sources, deficiency patterns,
nutrient interactions, and clinical application.
Macronutrient Energy & Digestion
1 Which macronutrient provides the most energy per gram?
A Carbohydrate
B Protein
C Fat
D Water
Answer: C. Fat
Explanation: Fat provides about 9 kcal per gram, whereas carbohydrate and protein each provide about 4 kcal per gram.
Water does not provide calories.
2 Which nutrient is the body's preferred fuel for many high-intensity activities?
A Carbohydrate
B Vitamin C
C Calcium
D Water
Answer: A. Carbohydrate
Explanation: Carbohydrate is readily converted to glucose, which supports rapid ATP production during higher-intensity
activity. Fat is an important fuel at rest and during lower-intensity activity.
D440 • Macronutrients & Micronutrients • 100 Questions Page 2
, 3 Where does most nutrient absorption occur?
A Stomach
B Small intestine
C Large intestine
D Esophagus
Answer: B. Small intestine
Explanation: The small intestine is the primary site for absorption of digested carbohydrate, protein, fat, vitamins, and
minerals. The large intestine mainly reabsorbs water and electrolytes.
4 Which digestive secretion helps emulsify dietary fat?
A Bile
B Saliva
C Hydrochloric acid only
D Intrinsic factor
Answer: A. Bile
Explanation: Bile breaks large fat globules into smaller droplets, increasing the surface area available to pancreatic lipase.
This supports efficient fat digestion and absorption.
5 Which enzyme begins starch digestion in the mouth?
A Pepsin
B Salivary amylase
C Pancreatic lipase
D Trypsin
Answer: B. Salivary amylase
Explanation: Salivary amylase begins the breakdown of starch in the mouth. Protein and fat digestion depend on different
enzymes later in the gastrointestinal tract.
D440 • Macronutrients & Micronutrients • 100 Questions Page 3
, 6 Which hormone generally lowers blood glucose after a carbohydrate-containing meal?
A Glucagon
B Insulin
C Cortisol
D Aldosterone
Answer: B. Insulin
Explanation: Insulin promotes glucose uptake and storage after meals, helping lower circulating glucose. Glucagon
generally acts in the opposite direction during fasting.
7 Which statement about alcohol is most accurate nutritionally?
A It is an essential macronutrient
B It provides about 7 kcal per gram but is not an essential nutrient
C It provides no energy
D It is classified as a vitamin
Answer: B. It provides about 7 kcal per gram but is not an essential nutrient
Explanation: Alcohol contributes energy at about 7 kcal per gram, but the body does not require it for normal function. It is
therefore not considered an essential nutrient.
8 A meal contains 50 g carbohydrate, 20 g protein, and 10 g fat. Approximately how many
kilocalories does it provide?
A 290 kcal
B 370 kcal
C 420 kcal
D 500 kcal
Answer: B. 370 kcal
Explanation: Carbohydrate contributes 200 kcal, protein 80 kcal, and fat 90 kcal. The total is approximately 370 kcal.
D440 • Macronutrients & Micronutrients • 100 Questions Page 4
D440
Macronutrients &
Micronutrients
100-Question Practice Test
Carbohydrates, protein, fats, vitamins, minerals, food sources, deficiency patterns, nutrient
interactions, and clinical application.
100 A-D 100
Practice Questions Multiple Choice Immediate Explanations
Original study and revision material • Clean print-ready format
, D440 Macronutrients & Micronutrients
100 original questions with the answer and explanation immediately after every question.
Instructions: Select the best answer for each question. The correct answer and detailed explanation appear
immediately after every item. Questions focus on D440 macronutrients, micronutrients, food sources, deficiency patterns,
nutrient interactions, and clinical application.
Macronutrient Energy & Digestion
1 Which macronutrient provides the most energy per gram?
A Carbohydrate
B Protein
C Fat
D Water
Answer: C. Fat
Explanation: Fat provides about 9 kcal per gram, whereas carbohydrate and protein each provide about 4 kcal per gram.
Water does not provide calories.
2 Which nutrient is the body's preferred fuel for many high-intensity activities?
A Carbohydrate
B Vitamin C
C Calcium
D Water
Answer: A. Carbohydrate
Explanation: Carbohydrate is readily converted to glucose, which supports rapid ATP production during higher-intensity
activity. Fat is an important fuel at rest and during lower-intensity activity.
D440 • Macronutrients & Micronutrients • 100 Questions Page 2
, 3 Where does most nutrient absorption occur?
A Stomach
B Small intestine
C Large intestine
D Esophagus
Answer: B. Small intestine
Explanation: The small intestine is the primary site for absorption of digested carbohydrate, protein, fat, vitamins, and
minerals. The large intestine mainly reabsorbs water and electrolytes.
4 Which digestive secretion helps emulsify dietary fat?
A Bile
B Saliva
C Hydrochloric acid only
D Intrinsic factor
Answer: A. Bile
Explanation: Bile breaks large fat globules into smaller droplets, increasing the surface area available to pancreatic lipase.
This supports efficient fat digestion and absorption.
5 Which enzyme begins starch digestion in the mouth?
A Pepsin
B Salivary amylase
C Pancreatic lipase
D Trypsin
Answer: B. Salivary amylase
Explanation: Salivary amylase begins the breakdown of starch in the mouth. Protein and fat digestion depend on different
enzymes later in the gastrointestinal tract.
D440 • Macronutrients & Micronutrients • 100 Questions Page 3
, 6 Which hormone generally lowers blood glucose after a carbohydrate-containing meal?
A Glucagon
B Insulin
C Cortisol
D Aldosterone
Answer: B. Insulin
Explanation: Insulin promotes glucose uptake and storage after meals, helping lower circulating glucose. Glucagon
generally acts in the opposite direction during fasting.
7 Which statement about alcohol is most accurate nutritionally?
A It is an essential macronutrient
B It provides about 7 kcal per gram but is not an essential nutrient
C It provides no energy
D It is classified as a vitamin
Answer: B. It provides about 7 kcal per gram but is not an essential nutrient
Explanation: Alcohol contributes energy at about 7 kcal per gram, but the body does not require it for normal function. It is
therefore not considered an essential nutrient.
8 A meal contains 50 g carbohydrate, 20 g protein, and 10 g fat. Approximately how many
kilocalories does it provide?
A 290 kcal
B 370 kcal
C 420 kcal
D 500 kcal
Answer: B. 370 kcal
Explanation: Carbohydrate contributes 200 kcal, protein 80 kcal, and fat 90 kcal. The total is approximately 370 kcal.
D440 • Macronutrients & Micronutrients • 100 Questions Page 4
