BIO 121 Module 4 | Essentials in Nutrition Exam Q&A |
Portage Learning
Here are 100 original multiple-choice practice questions for BIO 121 Module 4:
Nutrition. This set assumes Module 4 covers vitamins, minerals, water, and
electrolytes — including fat-soluble and water-soluble vitamins, major minerals, trace
minerals, deficiencies, toxicities, and fluid/electrolyte balance. They are not official
examination questions and are not copied from any textbook, test bank, or copyrighted
source.
Question 1:
Which vitamins are classified as fat-soluble?
A. B-complex and C
B. A, D, E, and K
C. C and D
D. B12 and folate
Correct answer: B
Rationale:
Vitamins A, D, E, and K are fat-soluble and stored in body tissues.
Question 2:
Which vitamins are classified as water-soluble?
A. A, D, E, K
B. B-complex and C
C. A and K
D. D and E
Correct answer: B
Rationale:
B-complex vitamins and vitamin C are water-soluble and excreted more readily.
Question 3:
Fat-soluble vitamins are more likely to cause toxicity because they:
A. Are stored in body tissues
B. Are excreted rapidly in urine
,C. Are not absorbed
D. Are water-soluble
Correct answer: A
Rationale:
Fat-soluble vitamins accumulate in the liver and adipose tissue, increasing toxicity risk.
Question 4:
Water-soluble vitamins are less likely to cause toxicity because they:
A. Are stored in large amounts
B. Are excreted in urine
C. Accumulate in fat tissue
D. Are not absorbed
Correct answer: B
Rationale:
Water-soluble vitamins are excreted in urine, reducing toxicity risk.
Question 5:
Vitamin A is important for:
A. Vision, immune function, and cell growth
B. Blood clotting
C. Calcium absorption
D. Oxygen transport
Correct answer: A
Rationale:
Vitamin A supports vision, immune function, and cell differentiation.
Question 6:
A deficiency of vitamin A can cause:
A. Night blindness and increased infection risk
B. Scurvy
C. Rickets
D. Beriberi
Correct answer: A
,Rationale:
Vitamin A deficiency impairs vision, especially night vision, and weakens immunity.
Question 7:
Preformed vitamin A is found primarily in:
A. Animal foods
B. Fruits
C. Vegetables
D. Grains
Correct answer: A
Rationale:
Preformed vitamin A (retinol) is found in animal foods such as liver, eggs, and dairy.
Question 8:
Provitamin A carotenoids are found primarily in:
A. Animal foods
B. Plant foods
C. Dairy products
D. Fish
Correct answer: B
Rationale:
Carotenoids such as beta-carotene are found in plant foods like carrots and sweet
potatoes.
Question 9:
Vitamin D is important for:
A. Calcium absorption and bone health
B. Blood clotting
C. Vision
D. Oxygen transport
Correct answer: A
Rationale:
Vitamin D promotes calcium absorption and bone mineralization.
, Question 10:
A deficiency of vitamin D can cause:
A. Rickets in children and osteomalacia in adults
B. Scurvy
C. Night blindness
D. Beriberi
Correct answer: A
Rationale:
Vitamin D deficiency causes rickets in children and osteomalacia in adults.
Question 11:
Vitamin D is synthesized in the skin upon exposure to:
A. Ultraviolet light
B. Infrared light
C. Visible light
D. X-rays
Correct answer: A
Rationale:
UVB radiation from sunlight converts 7-dehydrocholesterol to vitamin D3 in the skin.
Question 12:
Vitamin E functions primarily as:
A. An antioxidant
B. A coenzyme in energy metabolism
C. A blood-clotting factor
D. A calcium regulator
Correct answer: A
Rationale:
Vitamin E is a major antioxidant protecting cell membranes from oxidative damage.
Question 13:
A deficiency of vitamin E can cause:
Portage Learning
Here are 100 original multiple-choice practice questions for BIO 121 Module 4:
Nutrition. This set assumes Module 4 covers vitamins, minerals, water, and
electrolytes — including fat-soluble and water-soluble vitamins, major minerals, trace
minerals, deficiencies, toxicities, and fluid/electrolyte balance. They are not official
examination questions and are not copied from any textbook, test bank, or copyrighted
source.
Question 1:
Which vitamins are classified as fat-soluble?
A. B-complex and C
B. A, D, E, and K
C. C and D
D. B12 and folate
Correct answer: B
Rationale:
Vitamins A, D, E, and K are fat-soluble and stored in body tissues.
Question 2:
Which vitamins are classified as water-soluble?
A. A, D, E, K
B. B-complex and C
C. A and K
D. D and E
Correct answer: B
Rationale:
B-complex vitamins and vitamin C are water-soluble and excreted more readily.
Question 3:
Fat-soluble vitamins are more likely to cause toxicity because they:
A. Are stored in body tissues
B. Are excreted rapidly in urine
,C. Are not absorbed
D. Are water-soluble
Correct answer: A
Rationale:
Fat-soluble vitamins accumulate in the liver and adipose tissue, increasing toxicity risk.
Question 4:
Water-soluble vitamins are less likely to cause toxicity because they:
A. Are stored in large amounts
B. Are excreted in urine
C. Accumulate in fat tissue
D. Are not absorbed
Correct answer: B
Rationale:
Water-soluble vitamins are excreted in urine, reducing toxicity risk.
Question 5:
Vitamin A is important for:
A. Vision, immune function, and cell growth
B. Blood clotting
C. Calcium absorption
D. Oxygen transport
Correct answer: A
Rationale:
Vitamin A supports vision, immune function, and cell differentiation.
Question 6:
A deficiency of vitamin A can cause:
A. Night blindness and increased infection risk
B. Scurvy
C. Rickets
D. Beriberi
Correct answer: A
,Rationale:
Vitamin A deficiency impairs vision, especially night vision, and weakens immunity.
Question 7:
Preformed vitamin A is found primarily in:
A. Animal foods
B. Fruits
C. Vegetables
D. Grains
Correct answer: A
Rationale:
Preformed vitamin A (retinol) is found in animal foods such as liver, eggs, and dairy.
Question 8:
Provitamin A carotenoids are found primarily in:
A. Animal foods
B. Plant foods
C. Dairy products
D. Fish
Correct answer: B
Rationale:
Carotenoids such as beta-carotene are found in plant foods like carrots and sweet
potatoes.
Question 9:
Vitamin D is important for:
A. Calcium absorption and bone health
B. Blood clotting
C. Vision
D. Oxygen transport
Correct answer: A
Rationale:
Vitamin D promotes calcium absorption and bone mineralization.
, Question 10:
A deficiency of vitamin D can cause:
A. Rickets in children and osteomalacia in adults
B. Scurvy
C. Night blindness
D. Beriberi
Correct answer: A
Rationale:
Vitamin D deficiency causes rickets in children and osteomalacia in adults.
Question 11:
Vitamin D is synthesized in the skin upon exposure to:
A. Ultraviolet light
B. Infrared light
C. Visible light
D. X-rays
Correct answer: A
Rationale:
UVB radiation from sunlight converts 7-dehydrocholesterol to vitamin D3 in the skin.
Question 12:
Vitamin E functions primarily as:
A. An antioxidant
B. A coenzyme in energy metabolism
C. A blood-clotting factor
D. A calcium regulator
Correct answer: A
Rationale:
Vitamin E is a major antioxidant protecting cell membranes from oxidative damage.
Question 13:
A deficiency of vitamin E can cause:
