“Discover key insights into fatty acid metabolism, ketogenesis, and triglyceride synthesis through clinical scenarios. This guide explains enzyme deficiencies like MCAD, hormonal regulation by insulin, and the role of beta-oxidation and omega oxidation pathways in energy production.”
“Clinical Biochemistry: Fatty Acid Metabolism, Ketogenesis, and Energy Regulation” Read More »
“Dear students,
Assess your understanding of fatty acid and triglyceride metabolism with this 32-question timed quiz. Complete it in one sitting and attempt it multiple times to solidify your knowledge. Explanations for all questions will be available tomorrow. Start your self-assessment journey today!”
Fatty acid and Triglyceride metabolism- a quiz for self-assessment Read More »
1. An exclusively breast-fed infant presents with vomiting, weight loss, jaundice, hepatomegaly, and bilateral cataracts. Which condition is most likely responsible for these symptoms? A. Breast milk jaundice B. Classical Galactosemia C. Hereditary fructose intolerance D. Type 1 Diabetes mellitus E. Von Gierke’s disease Correct Answer: B. Classical Galactosemia Explanation: Classical galactosemia is a rare
Fructose and Galactose metabolism- Multiple-choice questions with explanations Read More »
1. A 45-year-old patient presents to the clinic with significant weight loss and fatigue. Blood tests reveal elevated levels of epinephrine and glucagon. Given this clinical context, when these hormones bind to receptors on the adipose cell membrane, which of the following is NOT expected to occur? A. Fatty acids are activated, enter the mitochondria,
Fatty acid metabolism – Case-based multiple-choice questions-set 2 Read More »
1. Which of the following TCA cycle intermediates plays a crucial role in de novo fatty acid synthesis by providing substrate and positively regulating the rate-limiting enzyme involved in fatty acid synthesis? A. Citrate B. Isocitrate C. Malate D. Oxaloacetate E. Succinate Correct Answer: A. Citrate. Citrate plays a crucial role in de novo
Fatty acid and Triglyceride synthesis- Case-based multiple-choice questions Read More »
1. A 3-month-old male infant presents with poor feeding, hypotonia, and cardiomegaly on physical exam. Blood tests reveal elevated lactate, uric acid, and creatine kinase levels. Echocardiogram demonstrates hypertrophic cardiomyopathy. A muscle biopsy shows excessive glycogen storage in lysosomes. Which enzyme deficiency is most likely responsible for this infant’s condition? A. Glucose-6-phosphatase B. Debranching enzyme
Glycogen Storage Diseases- Multiple-Choice Questions Read More »
1. Imagine you’re preparing for a long-distance marathon and need sustained energy throughout the race. Which of the following organs stores the maximum amount of glycogen that your body can use during prolonged exercise? A. Adipose tissue B. Cardiac muscle C. Kidney D. Liver E. Skeletal muscle The correct answer is E. Skeletal muscle:
Glycogen Metabolism- Multiple-Choice Questions with Complete explanations-Part-1 Read More »
1. A researcher is investigating the effect of an enzyme whose reaction product is crucial for de novo fatty acid synthesis. Which of the following enzymes is most likely the focus of this study? A. Acyl CoA Dehydrogenase B. Glucose-6-Phosphatase C. Glucose-6-Phosphate Dehydrogenase (G-6PD) D. Lactate Dehydrogenase E. Phosphofructokinase-1 (PFK-1) Correct Answer – C.
11. During fasting and feeding states, several enzymes are regulated to maintain glucose and energy homeostasis. Specific biochemical processes occur in an individual at rest who has fasted for 12 hours to adapt to the energy demand. Which of the following occurs in such a state? A. Phosphodiesterase is activated by insulin B. Pyruvate carboxylase
Gluconeogenesis- Case-based multiple-choice questions- Set 2 Read More »
1. A 4-month-old boy is being evaluated for seizures, psychomotor retardation, and hypotonia. Work-up reveals elevated serum levels of lactate, alanine, pyruvate, and ketoacids. Based on the clinical presentation, pyruvate carboxylase activity is measured using fibroblasts from a skin biopsy and is found to be markedly decreased. This enzyme is normally used to directly synthesize
Gluconeogenesis- Case-based Multiple-Choice Questions- Set 1 Read More »
