Practice questions

PDH complex and the TCA cycle- NBME style questions set-2

Energy metabolism, Learning resources, Library, Metabolism of Carbohydrates, Multiple-choice questions, Multiple-Choice questions, Multiple-choice questions, Practice questions, Practice questions, USMLE Content, USMLE Style questions, USMLE styled question bank /

1. The cytosolic isoform of which of the following TCA cycle enzymes requires NADP⁺ as a coenzyme, which can be utilized in the reduced state for reductive biosynthesis? A. Aconitase B. Citrate Synthase C. Isocitrate Dehydrogenase D. Malate Dehydrogenase E. Succinate Dehydrogenase The correct answer is C: Isocitrate Dehydrogenase: The cytosolic isoform of isocitrate dehydrogenase […]

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PDH complex and the TCA cycle- NBME style questions set-1

Energy metabolism, Learning resources, Library, Metabolism of Carbohydrates, Multiple-choice questions, Multiple-choice questions, Multiple-Choice questions, Practice questions, Practice questions, USMLE Content, USMLE Style questions, USMLE styled question bank /

1. A 24-year-old woman presents with diarrhea, dysphagia, jaundice, and white transverse lines on her fingernails (Mee’s lines). She is diagnosed with arsenic poisoning. Arsenic poisoning inhibits which of the following enzymes? A. Citrate synthase B. Isocitrate dehydrogenase C. Malate dehydrogenase D. Succinate dehydrogenase E. α-Keto glutarate dehydrogenase complex Correct answer: E. α-Keto glutarate dehydrogenase

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Carbohydrate Metabolism – A Quick Revision with Multiple Choice Questions Covering All Pathways

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Revise the essential concepts of carbohydrate metabolism with this comprehensive set of multiple-choice questions spanning all major pathways—glycolysis, gluconeogenesis, TCA cycle, glycogen metabolism, and the pentose phosphate pathway. Ideal for USMLE prep and biochemistry exams, this resource offers rapid revision with clear explanations for each answer.

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Amino Acid Metabolism- Set 2- Multiple-Choice Questions

Practice questions, Amino acid metabolism, Learning resources, Library, Metabolism of Amino acids, Multiple-choice questions, Multiple-Choice questions, Multiple-choice questions, Practice questions, Question Bank, Question Bank, USMLE Content, USMLE Style questions, USMLE styled question bank /

Q.1 – A 12-year-old boy develops convulsions. After an Electroencephalogram (EEG), a neurologist determines that the child has epilepsy. He is started on benzodiazepine, which promotes the activity of GABA. GABA is derived from Glutamate by which of the following reactions?A) DeaminationB) DecarboxylationC) DehydrogenationD) HydroxylationE) TransaminationAnswer: B) DecarboxylationExplanation: GABA (gamma-aminobutyric acid) is synthesized from glutamate

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Amino acid Metabolism- Multiple-Choice Questions- Set 1

Amino acid metabolism, Learning resources, Library, Metabolism of Amino acids, Multiple-choice questions, Multiple-choice questions, Multiple-Choice questions, Practice questions, Practice questions, Question Bank, Question Bank, USMLE Content, USMLE styled question bank /

Test your understanding of amino acid metabolism with this high-yield multiple-choice question set designed for medical and health science students. Covering key pathways, clinical correlations, and enzyme functions, this Amino Acid MCQ Set 1 is perfect for USMLE, board exams, and biochemistry reviews. Each question includes a detailed explanation to support deep learning and exam readiness.

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Biochemistry-Practice Questions (Problem-based multiple-choice questions)

Practice questions, USMLE styled question bank /

1)- Several complexes in the electron transport chain contain non-heme iron. Which of the following amino acids is bound tightly to the iron in these complexes? a) Serine b) Tyrosine c) Cysteine d) Methionine e) Glutamine 2)- A 27 –year-old female with epilepsy has been taking Phenytoin to control her seizures. She is pregnant and

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Biochemistry- multiple-choice questions (a quick revision of important topics)

Practice questions /

1) The energy yield during the conversion of Succinate to Fumarate is- a) 2ATP b) 1ATP c) 3ATP d) No ATP 2)  Which of the following occurs in non-shivering thermogenesis? a) Glucose is oxidized to lactate b) Fatty acids uncouple oxidative phosphorylation c) ATP is spent on heat production d) Glycogen is excessively degraded 3) Which

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