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UNE MEDICAL BIOCHEMISTRY COMPILED EXAMS BUNDLE 2023/24|ALL GRADED A+|GUARANTEED SUCCESS
UNE MEDICAL BIOCHEMISTRY COMPILED EXAMS BUNDLE 2023/24|ALL GRADED A+|GUARANTEED SUCCESS
[Meer zien]UNE MEDICAL BIOCHEMISTRY COMPILED EXAMS BUNDLE 2023/24|ALL GRADED A+|GUARANTEED SUCCESS
[Meer zien]Succinate is a substrate for which complex in the electron transport chain? 
 
a.) Complex 1 (NADH-1 oxidoreductase) 
 
b.) Complex IV (Cyt c oxidase) 
 
c.) Complex V (ATP synthase) 
 
d.) complex II (Succinate-Q reductase) 
Complex II (succinate-Q reductase) (D) 
 
 
 
Which of the following would...
Voorbeeld 4 van de 32 pagina's
In winkelwagenSuccinate is a substrate for which complex in the electron transport chain? 
 
a.) Complex 1 (NADH-1 oxidoreductase) 
 
b.) Complex IV (Cyt c oxidase) 
 
c.) Complex V (ATP synthase) 
 
d.) complex II (Succinate-Q reductase) 
Complex II (succinate-Q reductase) (D) 
 
 
 
Which of the following would...
The glucose-alanine cycle is a method of transferring ammonia from the skeletal muscle to the liver. In this process the non-toxic carrier of ammonia is which of the following compounds? 
Alanine 
 
 
 
Which of the following enzymes is correctly paired with its activator? 
N-acetylglutamate synthat...
Voorbeeld 3 van de 26 pagina's
In winkelwagenThe glucose-alanine cycle is a method of transferring ammonia from the skeletal muscle to the liver. In this process the non-toxic carrier of ammonia is which of the following compounds? 
Alanine 
 
 
 
Which of the following enzymes is correctly paired with its activator? 
N-acetylglutamate synthat...
How do most enzymes reduce the activation energy needed to move a reaction forward? 
Providing an active site most complementary the transition state 
 
 
 
We have an expert-written solution to this problem! 
An enzyme has a mutation within the substrate binding of the coenzyme needed for covalent ...
Voorbeeld 3 van de 16 pagina's
In winkelwagenHow do most enzymes reduce the activation energy needed to move a reaction forward? 
Providing an active site most complementary the transition state 
 
 
 
We have an expert-written solution to this problem! 
An enzyme has a mutation within the substrate binding of the coenzyme needed for covalent ...
Succinate is a substrate for which complex in the electron transport chain? 
 
a.) Complex 1 (NADH-1 oxidoreductase) 
 
b.) Complex IV (Cyt c oxidase) 
 
c.) Complex V (ATP synthase) 
 
d.) complex II (Succinate-Q reductase) 
Complex II (succinate-Q reductase) (D) 
 
 
 
Which of the following would...
Voorbeeld 4 van de 42 pagina's
In winkelwagenSuccinate is a substrate for which complex in the electron transport chain? 
 
a.) Complex 1 (NADH-1 oxidoreductase) 
 
b.) Complex IV (Cyt c oxidase) 
 
c.) Complex V (ATP synthase) 
 
d.) complex II (Succinate-Q reductase) 
Complex II (succinate-Q reductase) (D) 
 
 
 
Which of the following would...
Succinate is a substrate for which complex in the electron transport chain? 
 
a.) Complex 1 (NADH-1 oxidoreductase) 
 
b.) Complex IV (Cyt c oxidase) 
 
c.) Complex V (ATP synthase) 
 
d.) complex II (Succinate-Q reductase) 
Complex II (succinate-Q reductase) (D) 
 
 
 
Which of the following would...
Voorbeeld 4 van de 42 pagina's
In winkelwagenSuccinate is a substrate for which complex in the electron transport chain? 
 
a.) Complex 1 (NADH-1 oxidoreductase) 
 
b.) Complex IV (Cyt c oxidase) 
 
c.) Complex V (ATP synthase) 
 
d.) complex II (Succinate-Q reductase) 
Complex II (succinate-Q reductase) (D) 
 
 
 
Which of the following would...
UNE MEDICAL BIOCHEMISTRY UNIT 1 TEST WITH 100% CORRECT ANSWERS
Voorbeeld 2 van de 8 pagina's
In winkelwagenUNE MEDICAL BIOCHEMISTRY UNIT 1 TEST WITH 100% CORRECT ANSWERS
what percentage of water is in the body? 
60% 
 
 
 
Relationship between protons and acids & bases 
Acids donate proton. Bases accept proton 
 
 
 
Strong Acids Vs Weak Acids 
Strong acids fully dissociate (100%) and weak acids partially dissociate 
 
 
 
properties of water 
dipole dipole 
polar 
...
Voorbeeld 2 van de 13 pagina's
In winkelwagenwhat percentage of water is in the body? 
60% 
 
 
 
Relationship between protons and acids & bases 
Acids donate proton. Bases accept proton 
 
 
 
Strong Acids Vs Weak Acids 
Strong acids fully dissociate (100%) and weak acids partially dissociate 
 
 
 
properties of water 
dipole dipole 
polar 
...
Which of the following proteins is likely to have quaternary structure? 
A multimeric protein that contains multiple peptide chains 
 
 
 
Prosthetic groups are complex nonprotein molecules that participate in catalysis by providing functional groups that form a covalent intermediate between the enz...
Voorbeeld 2 van de 10 pagina's
In winkelwagenWhich of the following proteins is likely to have quaternary structure? 
A multimeric protein that contains multiple peptide chains 
 
 
 
Prosthetic groups are complex nonprotein molecules that participate in catalysis by providing functional groups that form a covalent intermediate between the enz...
Which of the following lipoproteins distributes dietary lipids? 
chylomicron 
 
 
 
The interaction of chylomicrons with lipoprotein lipase is stimulated by which of the following Apo proteins? 
ApoC II 
 
 
 
Nascent chylomicrons are synthesized in which tissue? 
Intestine 
 
 
 
Bile salts are syn...
Voorbeeld 4 van de 39 pagina's
In winkelwagenWhich of the following lipoproteins distributes dietary lipids? 
chylomicron 
 
 
 
The interaction of chylomicrons with lipoprotein lipase is stimulated by which of the following Apo proteins? 
ApoC II 
 
 
 
Nascent chylomicrons are synthesized in which tissue? 
Intestine 
 
 
 
Bile salts are syn...
Cortisol is a steroid hormone that increases protein catabolism from skeletal muscle. It does this through which of the following mechanisms? 
Transcriptional regulation 
 
 
 
Pyruvate dehydrogenase complex is highly regulated. The enzyme will be most active when which of the following compounds is...
Voorbeeld 2 van de 8 pagina's
In winkelwagenCortisol is a steroid hormone that increases protein catabolism from skeletal muscle. It does this through which of the following mechanisms? 
Transcriptional regulation 
 
 
 
Pyruvate dehydrogenase complex is highly regulated. The enzyme will be most active when which of the following compounds is...
Ribose and NADPH 
A family presents for genetic counseling. The couple has two female children who are alive and well; however, their infant son recently died in the nursery with severe hemolysis (lysis of red blood cells) and jaundice. The wife recalls she lost a brother in infancy with severe hemo...
Voorbeeld 2 van de 11 pagina's
In winkelwagenRibose and NADPH 
A family presents for genetic counseling. The couple has two female children who are alive and well; however, their infant son recently died in the nursery with severe hemolysis (lysis of red blood cells) and jaundice. The wife recalls she lost a brother in infancy with severe hemo...
What enzyme is used by the gluconeogenic pathway but NOT in the glycolytic pathway? 
Phosphoenolpyruvate Carboxykinase PEPCK 
 
 
 
Newborn screening results show a biotinidase deficiency in a 2 day old infant. The deficiency impairs the infant's ability to reuse and recycle biotin. Due to the enzy...
Voorbeeld 2 van de 7 pagina's
In winkelwagenWhat enzyme is used by the gluconeogenic pathway but NOT in the glycolytic pathway? 
Phosphoenolpyruvate Carboxykinase PEPCK 
 
 
 
Newborn screening results show a biotinidase deficiency in a 2 day old infant. The deficiency impairs the infant's ability to reuse and recycle biotin. Due to the enzy...
3, 2, 4, 1 
Order the following statements to illustrate the correct cascade of events that occurs after ligand binding of G-protein coupled receptor (heptahelical receptor). 
 
1. Degradation of cAMP by phosphodiesterase 
 
2. Dissociation of Gβ and Gγ subunits 
 
3. G protein exchanges GDP for G...
Voorbeeld 2 van de 5 pagina's
In winkelwagen3, 2, 4, 1 
Order the following statements to illustrate the correct cascade of events that occurs after ligand binding of G-protein coupled receptor (heptahelical receptor). 
 
1. Degradation of cAMP by phosphodiesterase 
 
2. Dissociation of Gβ and Gγ subunits 
 
3. G protein exchanges GDP for G...
Folding of the secondary structures 
A 19-year-old male is diagnosed with Creutzfeldt-Jakob Disease, which is caused by the introduction of an amyloid fold in the disease-causing protein. The introduction of this fold causes the protein to transition from a primarily α-helical structure to an aggre...
Voorbeeld 2 van de 6 pagina's
In winkelwagenFolding of the secondary structures 
A 19-year-old male is diagnosed with Creutzfeldt-Jakob Disease, which is caused by the introduction of an amyloid fold in the disease-causing protein. The introduction of this fold causes the protein to transition from a primarily α-helical structure to an aggre...
The cellular uptake of LDL increase intracellular cholesterol levels. This has which of the following impacts on de novo cholesterol synthesis? 
Increases degradation of HMG-CoA reductase 
 
 
 
Dietary cholesterol is primarily transported in the body by which of the following lipoproteins? 
Chylomi...
Voorbeeld 2 van de 14 pagina's
In winkelwagenThe cellular uptake of LDL increase intracellular cholesterol levels. This has which of the following impacts on de novo cholesterol synthesis? 
Increases degradation of HMG-CoA reductase 
 
 
 
Dietary cholesterol is primarily transported in the body by which of the following lipoproteins? 
Chylomi...
The cellular uptake of LDL increase intracellular cholesterol levels. This has which of the following impacts on de novo cholesterol synthesis? 
Increases degradation of HMG-CoA reductase 
 
 
 
Dietary cholesterol is primarily transported in the body by which of the following lipoproteins? 
Chylomi...
Voorbeeld 2 van de 14 pagina's
In winkelwagenThe cellular uptake of LDL increase intracellular cholesterol levels. This has which of the following impacts on de novo cholesterol synthesis? 
Increases degradation of HMG-CoA reductase 
 
 
 
Dietary cholesterol is primarily transported in the body by which of the following lipoproteins? 
Chylomi...
-3 
A series of reactions have the following ΔG. 
 
A + B --> C ΔG = -1 
 
C + D --> E ΔG = +3 
 
E + F --> G ΔG = -5 
 
The overall ΔG for this series of reactions is determined to be which of the following values? 
 
 
 
ΔG0 would be negative 
What is consistent with an exergonic re...
Voorbeeld 1 van de 4 pagina's
In winkelwagen-3 
A series of reactions have the following ΔG. 
 
A + B --> C ΔG = -1 
 
C + D --> E ΔG = +3 
 
E + F --> G ΔG = -5 
 
The overall ΔG for this series of reactions is determined to be which of the following values? 
 
 
 
ΔG0 would be negative 
What is consistent with an exergonic re...
A 19-year-old boy is diagnosed with Creutzfeldt-Jakob disease which is caused by the introduction of an amyloid fold in the disease-causing protein. The introduction of this fold causes the protein to transition from a primarily alpha helical structure to an aggregate of mostly beta sheets. This cha...
Voorbeeld 2 van de 11 pagina's
In winkelwagenA 19-year-old boy is diagnosed with Creutzfeldt-Jakob disease which is caused by the introduction of an amyloid fold in the disease-causing protein. The introduction of this fold causes the protein to transition from a primarily alpha helical structure to an aggregate of mostly beta sheets. This cha...
Under low energy conditions, AMP will bind to phosphofructokinase I and glycogen phosphorylase at site unique to the active site. This enhances the activity of these enzymes. This is an example of which of the follow types of enzyme regulation? 
Allosteric activation 
 
 
 
An example of enzyme acti...
Voorbeeld 2 van de 12 pagina's
In winkelwagenUnder low energy conditions, AMP will bind to phosphofructokinase I and glycogen phosphorylase at site unique to the active site. This enhances the activity of these enzymes. This is an example of which of the follow types of enzyme regulation? 
Allosteric activation 
 
 
 
An example of enzyme acti...
Transketolase 
 
Transaldolase is responsible for the transfer of 3 carbon units between sugars in the non-oxidative portion of the pentose phosphate pathway. Transketolase is responsible for the transfer of 2 carbon units between sugars in the non-oxidative portion of the pentose phosphate pathway....
Voorbeeld 1 van de 3 pagina's
In winkelwagenTransketolase 
 
Transaldolase is responsible for the transfer of 3 carbon units between sugars in the non-oxidative portion of the pentose phosphate pathway. Transketolase is responsible for the transfer of 2 carbon units between sugars in the non-oxidative portion of the pentose phosphate pathway....
Allosteric activators of hemoglobin will increase substrate binding through which of the following mechanisms? 
Binding the protein and keeping it in the R conformation. Allosteric activators of hemoglobin stabilize the R state, allowing increased affinity for oxygen and rapid saturation. 
 
 
 
The...
Voorbeeld 2 van de 7 pagina's
In winkelwagenAllosteric activators of hemoglobin will increase substrate binding through which of the following mechanisms? 
Binding the protein and keeping it in the R conformation. Allosteric activators of hemoglobin stabilize the R state, allowing increased affinity for oxygen and rapid saturation. 
 
 
 
The...
Under fasting conditions (ratio of insulin: glucagon <1), elevated glucagon will activate which of the following enzymes? 
hormone sensitive lipase 
 
 
 
Ketonuria, hypoglycemia, and severe acidosis are prime diagnostic indicators of the presentation of type 1 diabetic ketoacidosis. Which of the...
Voorbeeld 2 van de 10 pagina's
In winkelwagenUnder fasting conditions (ratio of insulin: glucagon <1), elevated glucagon will activate which of the following enzymes? 
hormone sensitive lipase 
 
 
 
Ketonuria, hypoglycemia, and severe acidosis are prime diagnostic indicators of the presentation of type 1 diabetic ketoacidosis. Which of the...
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