Font size
WorksheetsCHEM 465 Glycogenolysis and Glycogenesis
Total questions: 33
Worksheet time: 24mins
What three enzymes are Glycogenolysis?
Glycogen Phosphorylase
Glycogen Debranching Enzyme
Phospho-glucomutase
UDG-Glucose Pyrophoylase
Glycogen Synthase
What three enzymes are Glycogenesis?
Glycogen Phosphorylase
Amylo to Transglycosylase
Phospho-glucomutase
UDG-Glucose Pyrophoylase
Glycogen Synthase
Where Glycogenolysis occurs
(a)
Where is glycogen mainly stored?
Liver Tissue
Skeletal Muscles
Bone Tissue
Gut Tissue
The first enzyme in Glycogenolysis
(a)
Where does the glucose go after ___ enzyme occurs?
Enzyme: Glycogen phosphorylase
Goes to Glycolysis
Enzyme: UDG-Glucose Pyrophosphorylase
Goes to Gluconeogenesis
Enzyme: UDG-Glucose Pyrophosphorylase
Goes to Glycolysis
Enzyme: Glycogen phosphorylase
Goes to Glucoenogenesis
Enzyme: Glycogen Synthase
Goes to the next step in glycogenolysis
This element measures the Glucose in Glycogenolysis by oxidizind the glucose molecule
Copper
Magnesium
Zinc
Phosphorus
Glycogen Phosphorylase contains (a) for Pi Transfer
What is true?
i. The Oxidizing of glucose molecule is the Reducing End
ii. The PLP Attacks the Reducing End of the Glycogen molecule
i. only
ii. only
both i. and ii.
neither i. and ii.
PLP attacks the ___ ends of Glycogen.
Also indicate if the end is the oxidized or reduced form of glucose
Non reducing ends of glucose
The Glucose is reduced
The non reducing ends of glucose The glucose is oxidized
The reducing ends of glucose
The glucose is reduced
The reducing ends of glucose
The glucose is oxidized
What is the coenzyme involved in the Glycogen Phosphorylase?
PLP
NADH
TPP
FADH
What carbon on the glucose molecule indicates that the glucose is reduced or not?
Carbon 1
Carbon 4
Carbon 6
Carbon 3
The type of linkage on glycogen is (a) #-># Linkage
Is the reaction using the enzyme Glycogen Phosphorylase a favorable or non-favorable reaction?
Favorable
Non-Favorable
Its just exergonic
The ΔG is irrelevant
The enzyme Glycogen Phosphorylase changes what linkages?
____ linkage -> ____ linkage
Ether, Ester
Ester, Ether
Ester, Anhydride
Ether, Anhydride
How is PLP attached to its enzyme?
Schiff's Base
Non-covalently Attached
Uses an Ester
Uses an Ether
The Amino Acid involved in Schiff's Base
(a)
Schiff's Base used what two functional groups?
Aldehyde
Amino
Carboxylic Acid
Ester
Carboxyl
When the Glycogen Phosphorylase reaches a branching point 4-5 residues away, this enzyme is used
(a)
The Glycogen Debranching enzyme ____ the ___ Carbon
Hydrolyzes
Sixth
Decarboxylizes
Sixth
Hydrolyzes
Fourth
Decraboylize
Fourth
How the debranching enzyme does its job
Glycogen Phosphorylase reaches to a stopping point
The use of transferase of breaking of the enzyme leaving a α1-6 glucose attached
Glucosidase moves the chain of glucoses to another non-reducing end
Glycogen phosphorylase continues its job
What is the product of Glycogen Phosphorylase?
Glucose-1-P
Fructose
Glucose with nothing attached to it
Glucose-6-P
Phosphoglucomutase involves what amino acid residue?
(a)
Why does phosphoglucomutase need to occur?
Because Glucose needs to be converted into Glucose-1-Phosphate For Glycolysis to occur
Because Glucose need to be converted into Glucose-1-Phosphate for Glycogenesis to occur
Because Glucose need to be converted into Glycogen once again to go through glycolysis
Glucose 6-Phosphate in the (a) can directly get into Glycolysis
Where does the glycogen breakdown occur when needed to raise blood glucose levels?
(a)
In the liver, the glucose 6-phosphate goes into the blood by which organelle?
The ER
The cytosol
The mitochondria
The Lysosomes
The transporter name to deliver Glucose-6-Phosphate into the blood
(a)
What tissues would NOT have glucose 6-phosphatase?
Muscle Tissue
Adipose Tissue
Skeletal Tissue
Liver Tissue
Why can't Glucose 6-Phosphate escape the cell?
The charge of the molecule
The size of the molecule
There is a phosphate on the molecule
What is the first enzyme in glycogenesis?
UDG-Glucose Pyrophosphorylase
Glycogen Synthase
Amylo to transglycosylase
Glycogen Phosphorylase
The process of creating a glycosidic bond
(a)
What is pyrophosphate made out of
2 phosphoryl group
A phosphoryl group
An anhydride and a phosphoryl group
An ester and a phosphoryl group
