Lords of biochemistry, I come in time of great need.
help me pls, pretty pls.
NADPH is required for biosynthesis and fatty acid degradation
Degradation of fatty acids is catalyzed only by cytosolic enzymes, and their synthesis by mitochondrial enzymes
The fatty acid synthase complex catalyzes the modification stage
of palmitic acid in order to obtain unsaturated fatty acids
Fatty acid degradation is more intense after a meal rich in carbohydrates and biosynthesis is more intense in starvation
Degradation of fatty acids is inhibited by malonyl-CoA and biosynthesis is inhibited by Acyl-CoA
2.Choose the correct answers regarding ?-oxidation of fatty acids:
The process takes place in the cytosol
Products obtained by the ?-oxidation of fatty acids with an odd number of carbon atoms can enter in the Krebs cycle directly
?-oxidation involves the removal of fragments of 2 carbon atoms from the carboxyl end of acetyl-CoA
A saturated acyl-Co A is degraded by a recurring sequence of four reactions
The final product of the ?-oxidation of fatty acids with an odd number of carbon atoms is propionyl-CoA
3.Which of the following statements regarding ketone bodies are true?
When ketone bodies are in high concentration, the liver oxidizes them to obtain energy
In peripheral tissues ?-hydroxy-butyrate is converted to acetoacetate
Increased amounts of ketone bodies lead to acidosis
Their biosynthesis involves the enzyme HMG-CoA reductase
The presence of ketone bodies in increased amounts is associated with insulin-dependent diabetes
4.A patient has an elevated cholesterol and a normal level of plasma triglycerides. This lipid profile could be caused by:
Decreased lipoprotein lipase activity
A structural abnormality of Apo B100 leads to decreased tissue uptake of LDL
Increased LCAT (lecithin-cholesterol acyl transferase) activity
A deficiency of the receptors involved in the cellular uptake of LDL particles
A deficiency in Apo CII synthesis
help me pls, pretty pls.
NADPH is required for biosynthesis and fatty acid degradation
Degradation of fatty acids is catalyzed only by cytosolic enzymes, and their synthesis by mitochondrial enzymes
The fatty acid synthase complex catalyzes the modification stage
of palmitic acid in order to obtain unsaturated fatty acids
Fatty acid degradation is more intense after a meal rich in carbohydrates and biosynthesis is more intense in starvation
Degradation of fatty acids is inhibited by malonyl-CoA and biosynthesis is inhibited by Acyl-CoA
2.Choose the correct answers regarding ?-oxidation of fatty acids:
The process takes place in the cytosol
Products obtained by the ?-oxidation of fatty acids with an odd number of carbon atoms can enter in the Krebs cycle directly
?-oxidation involves the removal of fragments of 2 carbon atoms from the carboxyl end of acetyl-CoA
A saturated acyl-Co A is degraded by a recurring sequence of four reactions
The final product of the ?-oxidation of fatty acids with an odd number of carbon atoms is propionyl-CoA
3.Which of the following statements regarding ketone bodies are true?
When ketone bodies are in high concentration, the liver oxidizes them to obtain energy
In peripheral tissues ?-hydroxy-butyrate is converted to acetoacetate
Increased amounts of ketone bodies lead to acidosis
Their biosynthesis involves the enzyme HMG-CoA reductase
The presence of ketone bodies in increased amounts is associated with insulin-dependent diabetes
4.A patient has an elevated cholesterol and a normal level of plasma triglycerides. This lipid profile could be caused by:
Decreased lipoprotein lipase activity
A structural abnormality of Apo B100 leads to decreased tissue uptake of LDL
Increased LCAT (lecithin-cholesterol acyl transferase) activity
A deficiency of the receptors involved in the cellular uptake of LDL particles
A deficiency in Apo CII synthesis
