NUTRITION 251 EXAM 3 | ACTUAL QUESTIONS AND MULTIPLE CHOICES ANSWERS | LATEST 2026/27 | RATED A+| 167 Qs & ANSWERS

NUTRITION 251 EXAM 3 | ACTUAL QUESTIONS
AND MULTIPLE CHOICES ANSWERS | LATEST
2026/27 | RATED A+| 167 Qs & ANSWERS

1. Describe how ATP concentration influences metabolic regulation.
e. e. e. e. e. e.




e . ATP concentration has no significant effect on metabolic
e. e. e. e. e. e. e.




e. pathways. e. e. ATP concentration only affects protein synthesis, not
e. e. e. e. e. e.




metabolism.
e.




e . ATP concentration is solely determined by enzyme activity.
e. e. e. e. e. e. e.




e. ATP concentration serves as an energy signal that can activate
e. e. e. e. e. e. e. e. e.



e. or inhibit metabolic pathways depending on the energy needs of
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e. the cell. e.




2. Which of the following is a main symptom of dry beriberi?
e. e. e. e. e. e. e. e. e. e.




e . nerve damage e.




e. dermatitis e.




e. blindness

e . hemorrhaging

3. If a patient with chronic alcoholism presents with symptoms of fat-
e. e. e. e. e. e. e. e. e. e.



soluble vitamin deficiencies, what metabolic process might be
e. e. e. e. e. e. e.



disrupted?
e.




e . Protein synthesis and amino acid metabolism
e. e. e. e. e.




e . Carbohydrate metabolism and glucose regulation e. e. e. e.




e . Bile production and fat digestion
e. e. e. e.

, e . Nucleotide synthesis and DNA repair
e. e. e. e.




4. What is the definition of metabolism?
e. e. e. e. e.




e . The process of breaking down proteins into amino acids.
e. e. e. e. e. e. e. e.

, e . The conversion of glucose into glycogen.
e. e. e. e. e.




e . The synthesis of fatty acids from carbohydrates.
e. e. e. e. e. e.




e . The sum of all chemical reactions in the body that transform
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e.food into energy. e. e.




5. Describe how moderate alcohol intake can influence cholesterol levels in
e. e. e. e. e. e. e. e. e.



the body.
e. e.




e. Moderate alcohol intake increases both HDL and LDL e. e. e. e. e. e. e.



cholesterol equally.
e. e.




e. Moderate alcohol intake can increase HDL cholesterol ande. e. e. e. e. e. e.



lower LDL cholesterol, contributing to better heart health.
e. e. e. e. e. e. e. e.




e. Moderate alcohol intake decreases HDL cholesterol and
e. e. e. e. e. e.



e. increases LDL cholesterol. e. e.




e . Moderate alcohol intake has no effect on cholesterol levels.
e. e. e. e. e. e. e. e.




6. Describe how a diet rich in carotenoids can influence overall health.
e. e. e. e. e. e. e. e. e. e.




e . A diet rich in carotenoids is essential for protein synthesis.
e. e. e. e. e. e. e. e. e.




A diet rich in carotenoids can help lower the risk of developing
e . e. e. e. e. e. e. e. e. e. e. e.



certain diseases, such as eye diseases, cancer, and cardiovascular
e. e. e. e. e. e. e. e.



conditions.
e.




e. A diet rich in carotenoids primarily aids in muscle recovery
e. e. e. e. e. e. e. e. e.



e. after exercise. e.




e . A diet rich in carotenoids has no significant impact on health.
e. e. e. e. e. e. e. e. e. e.




7. What are the two primary sources of Vitamin K?
e. e. e. e. e. e. e. e.




e. Ascorbic acid from fruits and tocopherols from nuts.
e. e. e. e. e. e. e.




e. e. Thiamine from grains and riboflavin from dairy. e. e. e. e. e. e.

, e . Phylloquinones from plants and menaquinones from fish oils e. e. e. e. e. e. e.



e. and synthesized by gut bacteria.
e. e. e. e.




e . Retinol from animal sources and carotenoids from plants.
e. e. e. e. e. e. e.




8. If a cell has a deficiency in FAD, what impact would this have on the
e. e. e. e. e. e. e. e. e. e. e. e. e. e.



TCA cycle and overall energy production?
e. e. e. e. e. e.




e . Reduced ATP production due to impaired electron transport.
e. e. e. e. e. e. e.




e . No impact on energy production as other coenzymes
e. e. e. e. e. e. e.




e. compensate. e. e. Increased glucose metabolism leading to excess e. e. e. e. e.




e. energy.

e . Enhanced fatty acid synthesis due to increased FAD levels. e. e. e. e. e. e. e. e.




9. Describe how Vitamin K contributes to bone health.
e. e. e. e. e. e. e.




e. Vitamin K enhances the absorption of calcium from the
e. e. e. e. e. e. e. e.




e. intestines. e. e. Vitamin K directly produces energy in the form of ATP.
e. e. e. e. e. e. e. e. e.




e . Vitamin K is involved in the synthesis of collagen for bone structure.
e. e. e. e. e. e. e. e. e. e. e.




e. Vitamin K plays a role in bone metabolism by helping to
e. e. e. e. e. e. e. e. e. e.



e. regulate calcium in the bones. e. e. e. e.




10. Describe the conditions under which the MEOS pathway is utilized
e. e. e. e. e. e. e. e. e.



for alcohol metabolism.
e. e. e.




e . The MEOS pathway is used exclusively for low alcohol
e. e. e. e. e. e. e. e.




intake.
e. e. The MEOS pathway is activated only during fasting.
e. e. e. e. e. e. e. e.




e . The MEOS pathway is utilized for moderate to excessive intake
e. e. e. e. e. e. e. e. e.



e. of alcohol. e.




e . The MEOS pathway is involved in carbohydrate metabolism.
e. e. e. e. e. e. e.