Metabolism — Flashcards

Flashcard 591: Advanced Glycation End Products _____ proteins thereby reducing intimal integrity in arteries (allowing LDL to enter vessel walls and cause atherosclerosis)

Answer: crosslink

Extra: * via cross-linking proteins

Flashcard 592: Only _____-amino acids are found in proteins

Answer: L

Flashcard 593: What vitamin deficiency may be caused by malignant carcinoid syndrome? _____

Answer: Niacin (B3) deficiency

Extra: Refer to endocrine section: Atlas:

Flashcard 594: Mutation of the frataxin gene in Friedreich ataxia leads to impairment of _____ function

Answer: mitochondrial

Extra: Atlas: Other:

Flashcard 595: What polypeptide is co-secreted with insulin from β cells and assists in glycemic control? _____

Answer: Amylin

Flashcard 596: Does electron transport continue with uncoupling agents (e.g. 2,4-DNP)? _____

Answer: Yes**

Flashcard 597: Vitamin _____ is necessary for the enzyme dopamine β-hydroxylase, which converts dopamine to norepinephrine

Answer: C

Flashcard 598: Conjugated (direct) bilirubin is excreted in bile and metabolized by bacterial flora, producing _____

Answer: urobilinogen

Extra: UWorld:

Flashcard 599: Fructose is converted into _____ by the enzyme fructokinase

Answer: fructose-1-phosphate

Extra: Essential fructosuria is a benign, asymptomatic condition. Note: Hexokinase converts fructose to F6P, whereas fructokinase converts it to F1P.

Flashcard 600: Vitamin A is found in _____ and leafy vegetables

Answer: liver