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Biochemistry 3
Biochem First Aid 2012
18
Medical
Professional
05/28/2013

Additional Medical Flashcards

 


 

Cards

Term
Amino acid needed to make creatinine, urea, and NO
Definition
Arginine
Term
Amino acid needed to make GABA and Glutathione
Definition
Glutamate
Term

What is thyroxine made from?

 

Definition
Phenylalanine→Tyrosine→Thyroxine
Term
What is Melanin made from?
Definition
Phenylalanine→Tyrosine→Dopa→Melanin
Term
What is Dopa made from?
Definition
Phenylalanine→ (via phenylalanine hydroxylase +THB) Tyrosine→ (via tyrosine hydroxylase +THB) Dopa
Term
What enzyme converts Dopa to Dopamine?
Definition
Dopa carboxylase + Vit. B6
Term
What enzyme converts Dopamine to NE?
Definition
Dopamine β-hydroxylase + Vit.C
Term
What enzyme converts NE to Epi?
Definition
Phenylethanolamine N-methyl transferase (PMNT)+ SAM
Term
NE breaks down into ___
Definition
VMA
Term
Epinephrine breaks down into ___
Definition
Metanephrine
Term
Glucagon affects promote glycogenolysis what organ(s)?
Definition
liver
Term
Epinephrine promotes glycogenolysis in what organ(s)?
Definition
liver and muscle
Term
Action of glucagon or epinephrine on Glycogen phosphorylase kinase
Definition
activate cAMP which activates PKA which phosphorylates and activates Glycogen phosphorylase kinase (for glycogenolysis)
Term
Action of Insulin on Glycogen phosphorylase kinase
Definition
Causes tyrosine resceptor to dimerize which activates protein phosphatase which dephosphorylates (and inactivates) Glycogen phosphorylase kinase to prevent Glycogenolysis
Term
What pancreatic lipase does
Definition
degrades dietary TG in small intestine (to make chylomicrons)
Term
What LPL (lipoprotein lipase) does
Definition

degrades TG circulating in chylomicrons and VLDLs

 

(chylomicrons into chylomicron remnants + FFA, and VLDL into IDL + FFA)

Term
What Hepatic TG lipase (HL) does
Definition
degrades TG remaining in IDL to make LDL
Term
What Hormone-sensitive lipase does
Definition
degrades TG stored in adipocytes
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