Metabolism — Flashcards

Flashcard 1131: Vitamin B12 (cobalamin) is found in _____ products

Answer: animal

Flashcard 1132: Fructose is extruded from the intestinal cell into the blood by _____

Answer: GLUT-2 (facilitated diffusion)

Flashcard 1133: The acetyl-CoA from acetoacetyl-CoA (ketone body metabolism) is used to generate energy via the _____

Answer: Kreb's cycle

Flashcard 1134: One non-volatile acid is _____ acid, which is generated from metabolism of sulfur-containing amino acids (protein)

Answer: sulfuric

Flashcard 1135: Which steroid hormone enzyme deficiency (21- or 11-hydroxylase) presents with decreased renin activity?_____

Answer: 11-hydroxylase

Flashcard 1136: Which two organs does galactose primarily enter?

Answer: Liver and kidneys

Extra: Galactose metabolism primarily occurs in the liver, with a secondary contribution from the kidneys. Both organs express the GLUT2 transporter, allowing for insulin-independent uptake of galactose. While galactose is used in the brain for the synthesis of galactolipids (like cerebrosides), the bulk of dietary galactose is cleared by the liver and kidneys.

Flashcard 1137: Conversion of succinyl CoA into succinate produces a molecule of _____

Answer: GTP

Flashcard 1138: What enzyme converts DHF back to THF?_____

Answer: Dihydrofolate reductase

Flashcard 1139: Collagenase requires _____ as a cofactor

Answer: zinc

Flashcard 1140: Which form of C3 convertase is produced via the alternative complement pathway? _____

Answer: C3bBb