Exam 3

amines
Which of the following classes of compounds are weak bases?
one molecule of a carboxylic acid and one molecule of an amine
What are the two components of a carboxylic amide?
+1
What is the charge on an amine molecule at pH 7.4?
tryptophan
Serotonin arises in the CNS through metabolism of:
tyrosine
The catecholamines are all produced from which one of the following amino acids?
dopamine
Decreased levels of which one of the following appears to play a role in Parkinson’s disease?
acetylcholine
Which neurotransmitter serves at the neuromuscular junction?
alkyl ammonium ion
When an amine reacts with acid which one of the following is produced?
1
Which carbon atom is the anomeric carbon atom?
amylose and cellulose (both a and b)
Which of the following polysaccharides contain no branching?
The linkage between the monosaccharide units
What is the difference between amylose and cellulose?
alpha 1 -> 6
What is the linkage at the branch points of glycogen?
carboxylic ester
Which one of the following linkages are found in triglycerides?
arachidonic acid
What fatty acid contains 20 carbons and 4 double bonds?
membrane structure
What is the primary role of the phospholipids?
energy storage
What is the primary role of triglycerides?
cholesterol
What is the primary biological inhibitor of cholesterol synthesis in the body?
LDL
Which lipoprotein is responsible for the transport of cholesterol from the liver to peripheral tissues?
HDL
Which lipoprotein is responsible for the transport of cholesterol from the peripheral tissues to the liver?
cholesterol
Bile salts arise from oxidation of which of the following?