KU BIOL 600 EXAM 4 2025 QUESTIONS AND ANSWERS
the second round of fa synthesis involves the condensation reaction of __________ and __________ -
(answer)malonyl acp, butyryl acp
the reaction of acetyl acp with malonyl acp produces a __________ compound calledacetoacetyl acp -
(answer)4 c
fa synthesis requires what for molecules - (answer)acetyl coa, atp, co2, nadph
fa synthase is multifunctional enzyme where all the components are located on a polypeptide chin but
exists a __________ dimer - (answer)single, homo
the er performs what two key functions in fa synthesis - (answer)elongation past c16, introduces double
bonds into saturated fa
phosphatidate is converted to __________ as the active precursor to the synthesis of cadiolipin and
phosphotidylinositol 4,5-bisphosphate - (answer)cdp diacylglycerol
if an alcohol is the active precursor and not diacylglycerol, the phospholipids __________ and
__________ are synthesized - (answer)phosphatidylethanoalamine, phosphatidylcholine
ceramide has __________ as its backbone structure instead of glycerol - (answer)sphingosine
the key regulatory enzyme in lipid synthesis is - (answer)phosphatidic acid phosphatase
what are the three stages of cholesterol - (answer)mevalonate to isopentyl pyrophosphate, six
molecules of isopentyl pyrophosphate are condensed to squalene, squalene is cyclized and converted
into cholesterol
how does the formation of ketone bodies contribute to cholesterol synthesis - (answer)with the
breakdown of fatty acids into ketone bodies which are then converted to acetoacetyl coa, which can
then react with acetyl coa to form the precursor of cholesterol, called hmc coa
, KU BIOL 600 EXAM 4 2025 QUESTIONS AND ANSWERS
one regulation method is transcriptional regulation. describe this process when cholesterol levels are
low - (answer)when cholesterol levels are low the scap protein attached to the srebp proteins move to
the golgi complex where the srebp is cleaved twice to cleave off the sre. sre then moves to the nucleus
and binds to dna resulting in the increase of those enzymes involved in cholesterol production
what separates ldl's from hdl's - (answer)ldl's have a higher lipid/protein ratio than hdl's
ldl's are delivered into the cellular cytoplasm by what method - (answer)receptor mediated endocytosis
what vitamin made from cholesterol uses sunlight for its synthesis - (answer)vitamin d
name enzymes involved in the digestion of fats - (answer)lipases
name enzymes involved in the digestion of proteins - (answer)trypsin, chymotrypsin, pepsin
name enzymes involved in the digestion of starch - (answer)elastase
in amino acid degradation, the amino group is transferred by __________ into __________ to form the
amino acid __________ - (answer)aminotransferase, a-ketoglutarate, glutamate
in terrestrial vertebrates, the ultimate fate of nh4 is the formation of __________ - (answer)urea
fish excrete nh4 as __________ - (answer)ammonia
birds excrete nitrogen as __________ - (answer)uric acid
the enzyme that releases nh4 from glutamate is __________, and this enzyme requires the cofactor
__________ - (answer)glutamate dehydrogenase, nadh
the second round of fa synthesis involves the condensation reaction of __________ and __________ -
(answer)malonyl acp, butyryl acp
the reaction of acetyl acp with malonyl acp produces a __________ compound calledacetoacetyl acp -
(answer)4 c
fa synthesis requires what for molecules - (answer)acetyl coa, atp, co2, nadph
fa synthase is multifunctional enzyme where all the components are located on a polypeptide chin but
exists a __________ dimer - (answer)single, homo
the er performs what two key functions in fa synthesis - (answer)elongation past c16, introduces double
bonds into saturated fa
phosphatidate is converted to __________ as the active precursor to the synthesis of cadiolipin and
phosphotidylinositol 4,5-bisphosphate - (answer)cdp diacylglycerol
if an alcohol is the active precursor and not diacylglycerol, the phospholipids __________ and
__________ are synthesized - (answer)phosphatidylethanoalamine, phosphatidylcholine
ceramide has __________ as its backbone structure instead of glycerol - (answer)sphingosine
the key regulatory enzyme in lipid synthesis is - (answer)phosphatidic acid phosphatase
what are the three stages of cholesterol - (answer)mevalonate to isopentyl pyrophosphate, six
molecules of isopentyl pyrophosphate are condensed to squalene, squalene is cyclized and converted
into cholesterol
how does the formation of ketone bodies contribute to cholesterol synthesis - (answer)with the
breakdown of fatty acids into ketone bodies which are then converted to acetoacetyl coa, which can
then react with acetyl coa to form the precursor of cholesterol, called hmc coa
, KU BIOL 600 EXAM 4 2025 QUESTIONS AND ANSWERS
one regulation method is transcriptional regulation. describe this process when cholesterol levels are
low - (answer)when cholesterol levels are low the scap protein attached to the srebp proteins move to
the golgi complex where the srebp is cleaved twice to cleave off the sre. sre then moves to the nucleus
and binds to dna resulting in the increase of those enzymes involved in cholesterol production
what separates ldl's from hdl's - (answer)ldl's have a higher lipid/protein ratio than hdl's
ldl's are delivered into the cellular cytoplasm by what method - (answer)receptor mediated endocytosis
what vitamin made from cholesterol uses sunlight for its synthesis - (answer)vitamin d
name enzymes involved in the digestion of fats - (answer)lipases
name enzymes involved in the digestion of proteins - (answer)trypsin, chymotrypsin, pepsin
name enzymes involved in the digestion of starch - (answer)elastase
in amino acid degradation, the amino group is transferred by __________ into __________ to form the
amino acid __________ - (answer)aminotransferase, a-ketoglutarate, glutamate
in terrestrial vertebrates, the ultimate fate of nh4 is the formation of __________ - (answer)urea
fish excrete nh4 as __________ - (answer)ammonia
birds excrete nitrogen as __________ - (answer)uric acid
the enzyme that releases nh4 from glutamate is __________, and this enzyme requires the cofactor
__________ - (answer)glutamate dehydrogenase, nadh
