Metabolism — Flashcards

Flashcard 1091: What vitamin acts as a cofactor for aminotransferase enzymes? _____

Answer: B6 (Pyridoxal phosphate)

Flashcard 1092: Through which secondary messenger(s) does glucagon exert its actions on liver and adipose tissue?_____

Answer: cAMP

Flashcard 1093: Is conjugated (direct) bilirubin water soluble?_____

Answer: Yes

Flashcard 1094: What is the molecular shorthand for **reduced glutathione**?

Answer: GSH (Glutathione-SH)

Extra: Reduced glutathione (GSH) contains a sulfhydryl group. Two molecules of GSH are oxidized to form **GSSG** (oxidized glutathione), which contains a disulfide bond.

Flashcard 1095: CK-MB is predominantly found in myocardium, but can also be released from _____

Answer: skeletal muscle

Flashcard 1096: _____ may act as a buffer for H+, which subsequently affects Ca2+ levels as well

Answer: Plasma proteins

Flashcard 1097: Dihydropteroic acid is converted to _____ (prokaryotic folate synthesis)

Answer: dihydrofolic acid

Flashcard 1098: Electron transport inhibitors cause a _____ proton gradient and block of ATP synthesis

Answer: decreased

Flashcard 1099: Growth hormone is a single-chain polypeptide that is homologous with _____ and human placental lactogen

Answer: prolactin

Flashcard 1100: _____ is a form of hemoglobin bound to CO in place of O2

Answer: Carboxyhemoglobin