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Medical Science Mcqs 5254 MCQs [All-Courses]

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Medical Science is the study of human health, diseases, prevention, and treatment, focusing on diagnosis, patient care, and medical research to improve healthcare outcomes.

All Topics  5254

Phosphofructokinase is the key enzyme of______________?
A Glycolysis
B Gluconeogenesis
C Beta oxidation
D TCA cycle
Correct Answer: Glycolysis
Which metabolite of TCA cycle is used in detoxification of ammonia in brain_____________?
A Alpha ketoglutarate
B Ornithine
C Oxalocetate
D Glycine
Correct Answer: Alpha ketoglutarate
In TCA cycle, citrate is converted in to after losing a molecule of H2O_____________?
A Isocitrate
B Cisaconitate
C Oxalocetate
D Glutarate
Correct Answer: Cisaconitate
In TCA cycle substrate level phosphorylation occurs at____________?
A Succinate dehydrogenase
B Malonate reduction
C Thiokinase
D None of the above
Correct Answer: Thiokinase
Which of the following is correctly matched ?
A Isocitrate to oxalo succinate -1 ATP is formed
B Succinyl CoA to succinate -1 ATP is formed
C Succinate to furmarate -1 ATP is formed
D Malate to oxaloacetate -1 ATP is formed
Correct Answer: Succinyl CoA to succinate -1 ATP is formed
The enzyme involved in the first committed step of glycolysis is____________?
A Phosphofructokinase
B Glucose-6-Phosphatase
C Hexokinase
D Enolase
Correct Answer: Hexokinase
The end product of glycolysis under anaerobic conditions is_______________?
A Lactic acid
B Pyruvic acid
C Acetoacetic acid
D Oxaloacetic acid
Correct Answer: Lactic acid
Which of the following is a non-reducing sugar____________?
A Glucose
B Maltose
C Lactose
D Sucrose
Correct Answer: Sucrose
What high energy phosphate compound is formed in the citric acid cycle through substrate level phosphorylation______________?
A ATP
B TTP
C ITP
D GTP
Correct Answer: GTP
The main enzyme responsible for activation of xenobiotics in (detoxification)____________?
A Cytochrome P-450
B Glutathione S-transferase
C NADPH cytochrome P-450 reductase
D Glucuronyl transferase
Correct Answer: Cytochrome P-450
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