Lead (Pb) poisoning leads to inhibition of the enzymes _____ and ferrochelatase (heme synthesis)
#2
_____, probably acting through an aporepressor molecule, acts as a negative regulator of the synthesis of ALA Synthase-1 in the hepatic biosynthesis of Heme
#3
Heme is composed of _____ and protoporphyrin
#4
Each subunit of hemoglobin contains a _____ moiety, which is an iron-binding porphyrin, and a polypeptide chain
#5
The enzyme deficient in hereditary coproporphyria is _____.
#6
_____ is the most commonly used indicator for iron in low anemic areas
#7
iron absorption inhibitors are
_____
#8
total body iron is _____ gm
#9
1 gm of Hb contains _____ mg iron
#10
In splenic macrophages, heme is metabolized to _____ by the enzyme heme oxygenase
Heme Synthesis and Porphyrias Indian Medical PG Flashcards - Medical Study Cards
Master Heme Synthesis and Porphyrias with OnCourse flashcards. These spaced repetition flashcards are designed for medical students preparing for NEET PG, USMLE Step 1, USMLE Step 2, MBBS exams, and other medical licensing examinations.
Heme Synthesis and Porphyrias Flashcard Deck - 10 Cards
Flashcard 1: Lead (Pb) poisoning leads to inhibition of the enzymes _____ and ferrochelatase (heme synthesis)
Answer: -aminolevulinic acid dehydratase
Flashcard 2: _____, probably acting through an aporepressor molecule, acts as a negative regulator of the synthesis of ALA Synthase-1 in the hepatic biosynthesis of Heme
Answer: Heme
Flashcard 3: Heme is composed of _____ and protoporphyrin
Answer: iron
Flashcard 4: Each subunit of hemoglobin contains a _____ moiety, which is an iron-binding porphyrin, and a polypeptide chain
Answer: heme
Flashcard 5: The enzyme deficient in hereditary coproporphyria is _____.
Answer: coproporphyrinogen oxidase (CPOX)
Flashcard 6: _____ is the most commonly used indicator for iron in low anemic areas
Answer: serum ferritin
Extra:
Flashcard 7: iron absorption inhibitors are
_____
Answer: physates
oxalates
calcium
tannins
Extra:
Flashcard 8: total body iron is _____ gm
Answer: 3-5
Extra:
Flashcard 9: 1 gm of Hb contains _____ mg iron
Answer: 3.5
Extra:
Flashcard 10: In splenic macrophages, heme is metabolized to _____ by the enzyme heme oxygenase
Answer: biliverdin
Keywords: Heme Synthesis and Porphyrias flashcards, medical flashcards, NEET PG preparation, USMLE Step 1 flashcards, Anki alternative, spaced repetition medical, OnCourse flashcards
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