UMKC bio441 exam 3 Questions With Complete Solutions
alanine is a precursor for Correct Answer gluconeogenesis
anabolism Correct Answer biosynthesis; process that forms
larger macromolecules from smaller molecules; requires energy
input
assembly of glycogen Correct Answer branched series of
monomers joined via alpha 1,6 and alpha 1,4 glycosidic bonds
ATP can transfer/donate its phosphoryl group to other
compounds with lower potentials Correct Answer phosphoryl
group transfer potential
bifunctional enzyme Correct Answer Insulin leads to the
dephosphorylated bifunctional enzyme that forms fructose 2,6-
bisP and promotes glycolysis [PFK-2 is active]
Glucagon leads to the phosphorylated bifunctional enzyme that
degrades fructose 2,6-bisP and promotes gluconeogenesis [PFK-
2 is inactive]
bifunctional enzyme is coordinately regulated via Correct
Answer phosphorylation in response to glucagon
both NADPH and ribose-5-phosphate are needed Correct
Answer PPP
carbon oxidation to ATP synthesis steps Correct Answer
aldehyde group to oxidized; creates NADH
, 1,3-BPG phosphorylates ADP; creates ATP
cascade that leads to glycogen degradation in muscle and in liver
Correct Answer cascade system exhibits highly sensitive
switch-like responses to changes in cyclic AMP concentration
more sensitive in muscle
catabolism Correct Answer degradative; breaks the bonds of
larger molecules forming smaller molecules; releases energy
cells regenerate NAD+ through the Correct Answer further
metabolism of pyruvate
coordinate regulation Correct Answer one pathway is inactive
while the other is active
Degradation of glycogen Correct Answer glycogenolysis- this
process produces glucose 1-6 phosphate from breaking alpha-1,4
and alpha-1,6 glycosidic bonds
Describe the oxidative and non-oxidative phases of the pentose
phosphate pathway Correct Answer oxidative: irreversible,
converts glucose-6-P into ribulose-5-P and produces NADPH
non-oxidative: produces ribose-5-phosphate and pentose sugars,
reversible
differences between catabolic and anabolic pathways Correct
Answer catabolic pathways release energy, anabolic pathways
require energy
alanine is a precursor for Correct Answer gluconeogenesis
anabolism Correct Answer biosynthesis; process that forms
larger macromolecules from smaller molecules; requires energy
input
assembly of glycogen Correct Answer branched series of
monomers joined via alpha 1,6 and alpha 1,4 glycosidic bonds
ATP can transfer/donate its phosphoryl group to other
compounds with lower potentials Correct Answer phosphoryl
group transfer potential
bifunctional enzyme Correct Answer Insulin leads to the
dephosphorylated bifunctional enzyme that forms fructose 2,6-
bisP and promotes glycolysis [PFK-2 is active]
Glucagon leads to the phosphorylated bifunctional enzyme that
degrades fructose 2,6-bisP and promotes gluconeogenesis [PFK-
2 is inactive]
bifunctional enzyme is coordinately regulated via Correct
Answer phosphorylation in response to glucagon
both NADPH and ribose-5-phosphate are needed Correct
Answer PPP
carbon oxidation to ATP synthesis steps Correct Answer
aldehyde group to oxidized; creates NADH
, 1,3-BPG phosphorylates ADP; creates ATP
cascade that leads to glycogen degradation in muscle and in liver
Correct Answer cascade system exhibits highly sensitive
switch-like responses to changes in cyclic AMP concentration
more sensitive in muscle
catabolism Correct Answer degradative; breaks the bonds of
larger molecules forming smaller molecules; releases energy
cells regenerate NAD+ through the Correct Answer further
metabolism of pyruvate
coordinate regulation Correct Answer one pathway is inactive
while the other is active
Degradation of glycogen Correct Answer glycogenolysis- this
process produces glucose 1-6 phosphate from breaking alpha-1,4
and alpha-1,6 glycosidic bonds
Describe the oxidative and non-oxidative phases of the pentose
phosphate pathway Correct Answer oxidative: irreversible,
converts glucose-6-P into ribulose-5-P and produces NADPH
non-oxidative: produces ribose-5-phosphate and pentose sugars,
reversible
differences between catabolic and anabolic pathways Correct
Answer catabolic pathways release energy, anabolic pathways
require energy
