FNDH 620 Exam Questions and Answers |Complete Solutions Graded A+ |100% Correct
What is the most common DIGESTIBLE polysaccharide? Strach, 20%= amylose 80%=
amylopectin
When pancreatic amylase acts on amylopectin, the products are Maltose and isomaltose
Which GLUT transporter requires insulin for activation and is responsible for lowering glucose
levels? GLUT 4
What starts the digestion of starches? amylase in the mouth
How will glucose be release in amylopectin? from the nonreducing ends first
What can't cellulose be digested? the B-1,4 linkage can non-breakable by human enzymes
What bonds can the body break? alpha 1-6 and 1-4
Why does aerobic metabolism create more ATP than anaerobic? aerobic metabolism occurs
in the mitochondria, which can oxidize
Where does anaerobic reactions happen? intestinal, white muscle, and red blood cells
Where do aerobic reactions occur? Brain, red muscle, heart and liver cells
Which muscle cell type uses anaerobic metabolism? white muscle fiber
What is a key enzyme? The enzyme or enzymes in a reaction that may limit or reduce the
products of a reaction if interrupted
, What is the key enzyme in glycogenesis? glucokinase/hexokinase
allosteric regulation When a enzymes function at one site is affected by the binding of a
regulatory molecule to a separate site.
Non-competitive inhibition when one substrate or inhibitor changes the structure of of the
enzyme stopping the other from binding, inhibiting decreases the speed of the reaction
Can glucokinase or hexokinase be inhibited by allosteric means? Only hexokinase
What is the key enzyme in glycogenolysis? glycogen phosphorylase
What are two allosterically regulated enzymes that found in the skeletal muscle? hexokinase
and phosphofructokinase
In glycogenolysis, when does glucose become free glucose? (Dephosphorylated) after it goes
to the liver, only organ (kidney can but not much) that can dephosphorylate glucose
In the process of cleaving glucose from glycogen (glycogenolysis) to lactic acid, how many ATP
are produced and why this number? 3, this is because glycogenolysis only spends 1 atp in
the first step, so after it makes 4 atp, it has a total of three atp made
What occurs in the entry step for the Krebs cycle? Pyruvate loses a carbon, becomes acetyl
CoA
Why do we need oxaloaceatate from glucose? Without a steady supply we wouldn't not be
able to repeat the Krebs cycle
What is the most common DIGESTIBLE polysaccharide? Strach, 20%= amylose 80%=
amylopectin
When pancreatic amylase acts on amylopectin, the products are Maltose and isomaltose
Which GLUT transporter requires insulin for activation and is responsible for lowering glucose
levels? GLUT 4
What starts the digestion of starches? amylase in the mouth
How will glucose be release in amylopectin? from the nonreducing ends first
What can't cellulose be digested? the B-1,4 linkage can non-breakable by human enzymes
What bonds can the body break? alpha 1-6 and 1-4
Why does aerobic metabolism create more ATP than anaerobic? aerobic metabolism occurs
in the mitochondria, which can oxidize
Where does anaerobic reactions happen? intestinal, white muscle, and red blood cells
Where do aerobic reactions occur? Brain, red muscle, heart and liver cells
Which muscle cell type uses anaerobic metabolism? white muscle fiber
What is a key enzyme? The enzyme or enzymes in a reaction that may limit or reduce the
products of a reaction if interrupted
, What is the key enzyme in glycogenesis? glucokinase/hexokinase
allosteric regulation When a enzymes function at one site is affected by the binding of a
regulatory molecule to a separate site.
Non-competitive inhibition when one substrate or inhibitor changes the structure of of the
enzyme stopping the other from binding, inhibiting decreases the speed of the reaction
Can glucokinase or hexokinase be inhibited by allosteric means? Only hexokinase
What is the key enzyme in glycogenolysis? glycogen phosphorylase
What are two allosterically regulated enzymes that found in the skeletal muscle? hexokinase
and phosphofructokinase
In glycogenolysis, when does glucose become free glucose? (Dephosphorylated) after it goes
to the liver, only organ (kidney can but not much) that can dephosphorylate glucose
In the process of cleaving glucose from glycogen (glycogenolysis) to lactic acid, how many ATP
are produced and why this number? 3, this is because glycogenolysis only spends 1 atp in
the first step, so after it makes 4 atp, it has a total of three atp made
What occurs in the entry step for the Krebs cycle? Pyruvate loses a carbon, becomes acetyl
CoA
Why do we need oxaloaceatate from glucose? Without a steady supply we wouldn't not be
able to repeat the Krebs cycle
