RD Exam Questions: Topics from Domain 1
(Study Schedule: Week 1, Day 2) UPDATED
ACTUAL Exam Questions and CORRECT
Answers
The breakdown of fatty acids to yield acetyl-CoA is called - CORRECT ANSWER - Beta-
Oxidation
Which of the following gastrointestinal hormones has the effect of increasing appetite? -
CORRECT ANSWER - Ghrelin
Which of the following includes energy-yielding substances?
-Carbohydrates, triglycerides, protein
-Alcohol, carbohydrates, triglycerides, protein
-Vitamins, minerals, carbohydrates, triglycerides, protein
-Carbohydrates, triglycerides, protein, vitamins, minerals, water - CORRECT ANSWER -
Alcohol, carbohydrates, triglycerides, protein
At what levels do leptin and ghrelin promote excess food intake - CORRECT ANSWER -
Low leptin, high ghrelin
Name the essential amino acids - CORRECT ANSWER - histidine, isoleucine, leucine,
lysine, methionine, phenylalanine, threonine, tryptophan, valine
What is the name of the substance that denatures protein in the stomach during digestion? -
CORRECT ANSWER - hydrochloric acid
,What is the name of the pancreatic digestive enzyme that catalyzes the hydrolysis of certain
proteins in the small intestine into polypeptides and amino acids? - CORRECT
ANSWER - Chymotrypsin
What is the name of the enzyme found especially in pancreatic juice that catalyzes the hydrolysis
of elastin? - CORRECT ANSWER - Elastase
What is the name of the digestive enzyme found in gastric juice that catalyzes the breakdown of
protein to peptides? - CORRECT ANSWER - Pepsin
Which of the following is classified as a nonessential amino acid?
Valine
Lysine
Glycine
Threonine - CORRECT ANSWER - Glycine
Where does carbohydrate digestion begin? - CORRECT ANSWER - Mouth
Which fat would be most susceptible to flavor reversion due to oxidative rancidity?
Butter fat
Coconut oil
Soybean oil
Olive oil - CORRECT ANSWER - Soybean oil
(oxidation primarily occurs with unsat fats)
, Which of the following is not a sugar alcohol?
Sorbitol
Xylitol
Mannitol
Glycogen - CORRECT ANSWER - Glycogen
The tricarboxylic cycle begins with the conversion of pyruvate to: - CORRECT
ANSWER - acetyl coA
Which fatty acids are essential and must be obtained by eating foods containing these fatty
acids? - CORRECT ANSWER - Linoleic and alpha-linolenic fatty acids
Which of the following enzymes acts on complex carbohydrates?
Lactase
Sucrase
Maltase
Amylase - CORRECT ANSWER - Amylase
After protein digestion, what is the predominant product absorbed into circulation? - CORRECT
ANSWER - Amino acids
Glycogenolysis is the breakdown of glycogen into glucose that occurs in the cells of the: -
CORRECT ANSWER - Liver and muscle
If the carbohydrate content of the diet is insufficient to meet the body's needs for energy, what
can be converted to glucose? - CORRECT ANSWER - Amino acids
(Study Schedule: Week 1, Day 2) UPDATED
ACTUAL Exam Questions and CORRECT
Answers
The breakdown of fatty acids to yield acetyl-CoA is called - CORRECT ANSWER - Beta-
Oxidation
Which of the following gastrointestinal hormones has the effect of increasing appetite? -
CORRECT ANSWER - Ghrelin
Which of the following includes energy-yielding substances?
-Carbohydrates, triglycerides, protein
-Alcohol, carbohydrates, triglycerides, protein
-Vitamins, minerals, carbohydrates, triglycerides, protein
-Carbohydrates, triglycerides, protein, vitamins, minerals, water - CORRECT ANSWER -
Alcohol, carbohydrates, triglycerides, protein
At what levels do leptin and ghrelin promote excess food intake - CORRECT ANSWER -
Low leptin, high ghrelin
Name the essential amino acids - CORRECT ANSWER - histidine, isoleucine, leucine,
lysine, methionine, phenylalanine, threonine, tryptophan, valine
What is the name of the substance that denatures protein in the stomach during digestion? -
CORRECT ANSWER - hydrochloric acid
,What is the name of the pancreatic digestive enzyme that catalyzes the hydrolysis of certain
proteins in the small intestine into polypeptides and amino acids? - CORRECT
ANSWER - Chymotrypsin
What is the name of the enzyme found especially in pancreatic juice that catalyzes the hydrolysis
of elastin? - CORRECT ANSWER - Elastase
What is the name of the digestive enzyme found in gastric juice that catalyzes the breakdown of
protein to peptides? - CORRECT ANSWER - Pepsin
Which of the following is classified as a nonessential amino acid?
Valine
Lysine
Glycine
Threonine - CORRECT ANSWER - Glycine
Where does carbohydrate digestion begin? - CORRECT ANSWER - Mouth
Which fat would be most susceptible to flavor reversion due to oxidative rancidity?
Butter fat
Coconut oil
Soybean oil
Olive oil - CORRECT ANSWER - Soybean oil
(oxidation primarily occurs with unsat fats)
, Which of the following is not a sugar alcohol?
Sorbitol
Xylitol
Mannitol
Glycogen - CORRECT ANSWER - Glycogen
The tricarboxylic cycle begins with the conversion of pyruvate to: - CORRECT
ANSWER - acetyl coA
Which fatty acids are essential and must be obtained by eating foods containing these fatty
acids? - CORRECT ANSWER - Linoleic and alpha-linolenic fatty acids
Which of the following enzymes acts on complex carbohydrates?
Lactase
Sucrase
Maltase
Amylase - CORRECT ANSWER - Amylase
After protein digestion, what is the predominant product absorbed into circulation? - CORRECT
ANSWER - Amino acids
Glycogenolysis is the breakdown of glycogen into glucose that occurs in the cells of the: -
CORRECT ANSWER - Liver and muscle
If the carbohydrate content of the diet is insufficient to meet the body's needs for energy, what
can be converted to glucose? - CORRECT ANSWER - Amino acids
