Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← Human Body & HealthWhy does thiamine (vitamin B1) deficiency primarily disrupt carbohydrate metabolism?
A)Reduced red blood cell production
B)Impaired protein synthesis initiation
C)Thiamine pyrophosphate is a cofactor✓
D)Inhibition of fatty acid oxidation
💡 Explanation
Thiamine pyrophosphate (TPP), a derivative of thiamine, acts as a crucial cofactor for enzymes like pyruvate dehydrogenase in carbohydrate metabolism. A deficiency impairs these enzymes because the cofactor is missing, therefore carbohydrate metabolism is specifically disrupted, rather than affecting fat or protein pathways.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Human Body & Health →- Why does thyroid hormone (T4) production decrease when iodine intake acutely drops below the minimum required for thyroglobulin iodination?
- Why does progressive presbyopia necessitate increasingly stronger reading glasses as individuals age?
- A patient undergoing chemotherapy experiences peripheral neuropathy, leading to decreased tactile sensitivity. Which failure mode affecting mechanoreceptor signaling explains why the patient struggles to button their shirt?
- A mountain climber ascends rapidly to 14,000 feet. Which consequence will occur in their blood due to the Bohr effect interacting with 2,3-BPG?
- A patient with a history of deep vein thrombosis is prescribed warfarin. What happens to Vitamin K-dependent clotting factors when warfarin inhibits Vitamin K epoxide reductase?
- During intense exercise, if cutaneous vasodilation alone proves insufficient to maintain thermoregulation, which compensatory mechanism is triggered to further lower core body temperature?
