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Quiz 2

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MDCAT Practice Test - Practice Test - Biology - Bioenergetics - 2026 Quiz

Attempt 10 MCQs on MDCAT Practice Test - Practice Test - Biology - Bioenergetics (Year 2026) | Quiz 2

11. Approximately how many ATP are produced from complete oxidation of one palmitic acid (16:0) molecule?

38 ATP
50 ATP
106 ATP
130 ATP

12. Deamination of aspartate produces which intermediate?

Pyruvate
Acetyl-CoA
Oxaloacetate
Citrate

13. What process transfers an amino group from an amino acid to a keto acid without releasing ammonia?

Transamination
Oxidative deamination
Decarboxylation
Fermentation

14. What process produces ketone bodies from acetyl-CoA?

Glucose oxidation
Fatty acid oxidation
Ketogenesis
Amino acid catabolism

15. Which type of amino acids can give rise to glucose?

Only leucine and lysine
Glucogenic amino acids
Ketogenic amino acids
Essential amino acids

16. Which amino acids are exclusively ketogenic?

Glucogenic
Ketogenic
Both glucogenic and ketogenic
Neither

17. What is the typical order of fuel utilization during fasting?

Glucose then fats then proteins
Fats then glucose then proteins
Proteins then fats then glucose
Only glucose

18. What is the approximate caloric value of fat?

4 kcal/g
9 kcal/g
7 kcal/g
5 kcal/g

19. What system transports long-chain fatty acids into mitochondria?

Glycerol kinase
Carnitine shuttle
Fatty acid synthase
Lipoprotein lipase

20. Where are branched-chain amino acids mainly metabolized?

Liver
Kidney
Adipose tissue
Skeletal muscle

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