Oregon Dietitian Licensure Exam
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2027
Q&A| Instant Download Pdf.
1. Which macronutrient provides approximately 4 kcal per gram?
A. Fat
B. Alcohol
C. Carbohydrate
D. Water
Carbohydrate provides approximately 4 kilocalories per gram and serves as
an important source of energy for many tissues, particularly the brain and
exercising skeletal muscle.
2. Which macronutrient provides approximately 9 kcal per gram?
A. Protein
B. Carbohydrate
C. Fat
D. Water
Dietary fat provides approximately 9 kilocalories per gram, making it the
most energy-dense of the three macronutrients.
3. What is the primary function of dietary protein?
A. Provide the body's only source of glucose
B. Provide amino acids needed for tissue synthesis, repair, enzymes,
hormones, and other physiological functions
,C. Prevent all carbohydrate absorption
D. Replace water in cells
Protein supplies amino acids required for maintaining and repairing tissues
and for producing numerous functional proteins, enzymes, transport
molecules, and hormones.
4. Which amino acids are classified as essential?
A. Amino acids that can never be incorporated into proteins
B. Amino acids synthesized only during exercise
C. Amino acids that the body cannot synthesize in sufficient amounts and
therefore must be obtained from the diet
D. Amino acids found only in animal foods
Essential amino acids must be supplied through dietary intake because
endogenous synthesis cannot meet physiological requirements.
5. Which food is generally considered a complete protein source?
A. White rice alone
B. Apples
C. Eggs
D. Olive oil
Eggs contain all nine essential amino acids in proportions that support
human protein needs and are therefore considered a complete protein
source.
6. Which carbohydrate is a monosaccharide?
A. Sucrose
B. Lactose
C. Glucose
D. Starch
,Glucose is a monosaccharide, meaning it consists of a single sugar unit.
Sucrose and lactose are disaccharides, while starch is a polysaccharide.
7. Which carbohydrate is composed of glucose and fructose?
A. Lactose
B. Maltose
C. Sucrose
D. Glycogen
Sucrose is a disaccharide composed of one glucose molecule and one
fructose molecule.
8. What is the primary storage form of carbohydrate in humans?
A. Cellulose
B. Glycogen
C. Sucrose
D. Lactose
Glycogen is the storage form of glucose in humans and is stored primarily
in skeletal muscle and the liver.
9. Which organ plays a major role in maintaining blood glucose between
meals through glycogenolysis and gluconeogenesis?
A. Gallbladder
B. Liver
C. Esophagus
D. Spleen
The liver helps maintain blood glucose during fasting by breaking down
glycogen and producing glucose through gluconeogenesis.
10. Which type of dietary fiber is generally associated with forming
viscous solutions and slowing gastric emptying?
, A. Insoluble fiber only
B. Soluble fiber
C. Resistant starch exclusively
D. Lignin only
Many soluble fibers form viscous gels or solutions that can slow gastric
emptying and influence glucose and lipid metabolism.
11. Which vitamin is fat-soluble?
A. Vitamin C
B. Thiamin
C. Vitamin D
D. Folate
Vitamins A, D, E, and K are fat-soluble vitamins and can be stored in body
tissues more readily than water-soluble vitamins.
12. Which vitamin is especially important for collagen synthesis and
wound healing?
A. Vitamin D
B. Vitamin K
C. Vitamin C
D. Vitamin B12
Vitamin C is required for collagen synthesis and contributes to wound
healing, immune function, and antioxidant activity.
13. Which vitamin is essential for normal calcium absorption and
bone metabolism?
A. Vitamin C
B. Vitamin B1
C. Vitamin D
D. Vitamin B12
Practice Questions And Correct Answers
(Verified Answers) Plus Rationale 2027
Q&A| Instant Download Pdf.
1. Which macronutrient provides approximately 4 kcal per gram?
A. Fat
B. Alcohol
C. Carbohydrate
D. Water
Carbohydrate provides approximately 4 kilocalories per gram and serves as
an important source of energy for many tissues, particularly the brain and
exercising skeletal muscle.
2. Which macronutrient provides approximately 9 kcal per gram?
A. Protein
B. Carbohydrate
C. Fat
D. Water
Dietary fat provides approximately 9 kilocalories per gram, making it the
most energy-dense of the three macronutrients.
3. What is the primary function of dietary protein?
A. Provide the body's only source of glucose
B. Provide amino acids needed for tissue synthesis, repair, enzymes,
hormones, and other physiological functions
,C. Prevent all carbohydrate absorption
D. Replace water in cells
Protein supplies amino acids required for maintaining and repairing tissues
and for producing numerous functional proteins, enzymes, transport
molecules, and hormones.
4. Which amino acids are classified as essential?
A. Amino acids that can never be incorporated into proteins
B. Amino acids synthesized only during exercise
C. Amino acids that the body cannot synthesize in sufficient amounts and
therefore must be obtained from the diet
D. Amino acids found only in animal foods
Essential amino acids must be supplied through dietary intake because
endogenous synthesis cannot meet physiological requirements.
5. Which food is generally considered a complete protein source?
A. White rice alone
B. Apples
C. Eggs
D. Olive oil
Eggs contain all nine essential amino acids in proportions that support
human protein needs and are therefore considered a complete protein
source.
6. Which carbohydrate is a monosaccharide?
A. Sucrose
B. Lactose
C. Glucose
D. Starch
,Glucose is a monosaccharide, meaning it consists of a single sugar unit.
Sucrose and lactose are disaccharides, while starch is a polysaccharide.
7. Which carbohydrate is composed of glucose and fructose?
A. Lactose
B. Maltose
C. Sucrose
D. Glycogen
Sucrose is a disaccharide composed of one glucose molecule and one
fructose molecule.
8. What is the primary storage form of carbohydrate in humans?
A. Cellulose
B. Glycogen
C. Sucrose
D. Lactose
Glycogen is the storage form of glucose in humans and is stored primarily
in skeletal muscle and the liver.
9. Which organ plays a major role in maintaining blood glucose between
meals through glycogenolysis and gluconeogenesis?
A. Gallbladder
B. Liver
C. Esophagus
D. Spleen
The liver helps maintain blood glucose during fasting by breaking down
glycogen and producing glucose through gluconeogenesis.
10. Which type of dietary fiber is generally associated with forming
viscous solutions and slowing gastric emptying?
, A. Insoluble fiber only
B. Soluble fiber
C. Resistant starch exclusively
D. Lignin only
Many soluble fibers form viscous gels or solutions that can slow gastric
emptying and influence glucose and lipid metabolism.
11. Which vitamin is fat-soluble?
A. Vitamin C
B. Thiamin
C. Vitamin D
D. Folate
Vitamins A, D, E, and K are fat-soluble vitamins and can be stored in body
tissues more readily than water-soluble vitamins.
12. Which vitamin is especially important for collagen synthesis and
wound healing?
A. Vitamin D
B. Vitamin K
C. Vitamin C
D. Vitamin B12
Vitamin C is required for collagen synthesis and contributes to wound
healing, immune function, and antioxidant activity.
13. Which vitamin is essential for normal calcium absorption and
bone metabolism?
A. Vitamin C
B. Vitamin B1
C. Vitamin D
D. Vitamin B12
