,BIOD 121 Module 3 Practice Exam Essentials in Nutrition |
Portage Learning 100 Questions with Correct Answers &
Rationales 2026 Edition
This practice exam contains 100 questions designed to help you
prepare for the BIOD 121 Module 3 Exam at Portage Learning.
Questions cover energy balance, basal metabolic rate (BMR),
thermic effect of food, body composition, obesity, weight
management, eating disorders, and digestion. Each question
includes the correct answer and a detailed rationale.
SECTION A: Energy Balance (Questions 1–15)
Question 1
Energy balance is defined as:
A) A state where energy intake exceeds energy expenditure
B) A state where energy expenditure exceeds energy intake
C) A state when energy intake is equivalent to the amount of
energy expended
D) A state where no energy is consumed
Correct Answer: C
,Rationale: Energy balance is defined as a state when
one's energy intake is equivalent to the amount of energy
expended (energy in equals energy out). When energy intake
equals energy expenditure, body weight remains stable.
Question 2
Positive energy balance occurs when:
A) More calories are consumed than expended
B) Fewer calories are consumed than calories expended
C) Energy intake equals energy expenditure
D) No calories are consumed
Correct Answer: A
Rationale: Positive energy balance occurs if more calories
(energy) are consumed than expended. This leads to weight
gain over time.
Question 3
Negative energy balance occurs when:
A) More calories are consumed than expended
B) Fewer calories are consumed than calories expended
C) Energy intake equals energy expenditure
D) No calories are expended
, Correct Answer: B
Rationale: Negative energy balance occurs if fewer calories are
consumed than calories expended. This leads to weight loss
over time.
Question 4
Which of the following is an example of a period in life when
positive energy balance is necessary?
A) Older adulthood
B) Illness
C) Pregnancy
D) Dieting for weight loss
Correct Answer: C
Rationale: Periods in life when positive energy balance is
necessary include pregnancy, childhood, and adolescence
during growth spurts. These are times when additional energy is
required for growth and development.
Question 5
Portage Learning 100 Questions with Correct Answers &
Rationales 2026 Edition
This practice exam contains 100 questions designed to help you
prepare for the BIOD 121 Module 3 Exam at Portage Learning.
Questions cover energy balance, basal metabolic rate (BMR),
thermic effect of food, body composition, obesity, weight
management, eating disorders, and digestion. Each question
includes the correct answer and a detailed rationale.
SECTION A: Energy Balance (Questions 1–15)
Question 1
Energy balance is defined as:
A) A state where energy intake exceeds energy expenditure
B) A state where energy expenditure exceeds energy intake
C) A state when energy intake is equivalent to the amount of
energy expended
D) A state where no energy is consumed
Correct Answer: C
,Rationale: Energy balance is defined as a state when
one's energy intake is equivalent to the amount of energy
expended (energy in equals energy out). When energy intake
equals energy expenditure, body weight remains stable.
Question 2
Positive energy balance occurs when:
A) More calories are consumed than expended
B) Fewer calories are consumed than calories expended
C) Energy intake equals energy expenditure
D) No calories are consumed
Correct Answer: A
Rationale: Positive energy balance occurs if more calories
(energy) are consumed than expended. This leads to weight
gain over time.
Question 3
Negative energy balance occurs when:
A) More calories are consumed than expended
B) Fewer calories are consumed than calories expended
C) Energy intake equals energy expenditure
D) No calories are expended
, Correct Answer: B
Rationale: Negative energy balance occurs if fewer calories are
consumed than calories expended. This leads to weight loss
over time.
Question 4
Which of the following is an example of a period in life when
positive energy balance is necessary?
A) Older adulthood
B) Illness
C) Pregnancy
D) Dieting for weight loss
Correct Answer: C
Rationale: Periods in life when positive energy balance is
necessary include pregnancy, childhood, and adolescence
during growth spurts. These are times when additional energy is
required for growth and development.
Question 5
