Practice questions Flashcards
What are important of lipid absorption across the plasma membrane of intestinal cells?
Micelles
The result of lipase activity in digestion is
Monoacylgcerol & 2 FFAs
What molecule does the final carbon group use for oxidation in Stage 3 for the ultimate ATP production?
Acetyl CoA
The key enzyme that regulates the pace of glycolysis is
Phosphofructokinase
What are the two 3 C molecules generated by the split of fructose 1,6-bisphosphate?
Glyceraldehydes-3-phosphate & Dihydroxyacetone phosphate
Reversible Cleavage of F-1,6-BP to DHAP & GAP is the reaction that is catalyzed by ______
aldolase
What is the conversion of noncarbohydrate precursors to glucose?
Gluconeogenesis
The 1st step in gluconeogenesis is the carboxylation of ______ to form ________
Pyruvate
oxaloacetate
Gluconeogenesis occurs in which of the following tissue?
Liver
In the presence of oxygen, pyruvate is converted to _____ in order to enter the cycle
Acetyl CoA
A group of enzymes that convert pyruvate to Acetyl CoA are known as the _______
Pyruvate dehydrogenase complex
Pyruvate is decarboxylated by which subunit of the PDH?
E1
The purpose of phosphorylation of glucose in cytosol is to trap glucose in the cell and to convert it to a more _____ _____
soluble form
Which of the following is an electron done for biosynthesis?
NADPH
Which of the following his the activated electron carried used for fuel oxidation?
NADH
What process is regulated by Transcriptional regulation of the amount of enzyme?
Metabolic processes
What process is regulated by allosteric control of enzyme activity?
Metabolic Processes
What process is regulated by accessibility of substrates by compartmentalization?
Metabolic Processes
Metabolic pathways that use ATP for biosynthesis processes are ______ pathways
Anabolic
What is the common product from all macronutrients at stage 2 catabolism?
Acetyl CoA
Bicarbonate ions are released by what organ to buffer the pH of the stomach juices?
Pancreas
the release of bicarbonate ions by the pancreas is stimulated by ______
Secretin
Pepsinogen requires __________ to achieve activity
zymogen activation
