Biochemistry Questions
Explore questions in the Biochemistry category that you can ask Spark.E!
During TCA cycle, we loss two CO2, where do they come from?
which enzyme in the TCA cycle is not soluble in the matrix of the mitochondria rather it reside in the inner membrane of mitochondria?
name the enzymes that are not irreversible between Glucose and G3P
Which subunit of ATP synthase is responsible for the catalysis of ATP formation?cAlphaBetaGamma
How many cytochrome c molecules are oxidized by Complex IV for each molecule of oxygen (O2) that is reduced?4312
As glucose levels in the bloodstream increase, insulin levels _________.
Which of the following occurs when the catalytic subunit of ATP synthase is in the loose state?ADP and Pi bindADP and Pi are converted to ATPATP is releasedATP is hydrolyzed
The hormone ____ stimulates the liver to generate glucose by glycogenolysis and gluconeogenesis.GlucagonInsulinEpinephrineNorepinephrineLeptin
Glucose is the preferred fuel of muscles because it can be metabolized under which of the following conditions?Low pHAnaerobicLow temperatureAlkaline
What organelle is found in much higher amounts in brown adipose tissue than white adipose tissue?lysosomemitochondriachloroplastendoplasmic reticulum
The effect of epinephrine upon the liver is most similar to which of the following hormones?resistininsulinleptinglucagon
In the Glucose-Alanine cycle, what amino acid is transported from the muscle to the liver?alanineaspartateglycineglutamine
Question 80.5 / 0.5 ptsWhich of the following pathways is active in the muscle only during the well-fed state?fatty acid oxidationglycogen storageketone body synthesisglycolysis
Which of the following is the most common type of diabetes in the US?type 1type 2 resulting from a genetic defect in the insulin receptortype 2 without a genetic defect in the insulin receptortype 3
Indicate the cellular compartment where each of the following metabolic pathways takes place:Urea synthesisGlycolysisGluconeogenesis (majority)Citric acid cycle
Identify the metabolic effects of insulin from the list below:Enhances glucose transportDecreases glycogen synthesisIncreases blood glucose levelsIncreases gluconeogensisStimulates glycogen synthesisDecreases gluconeogenesis
In the Cori cycle, muscles break down [ Select ] ["starch", "glycogen", "fatty acids"] into glucose , which undergoes glycolysis. The end product of glycolysis in active muscle is [ Select ] ["ethanol", "lactate"] , which is transported in the blood to the [ Select ] ["liver", "kidneys"] . The liver uses fatty acid oxidation to drive [ Select ] ["fermentation", "gluconeogenesis"] , and the glucose produced is transported back to the muscle via the bloodstream.
Which of the following organs can generate glucose?Adipose tissueKidneysLiverMuscles
Glycogen phosphorylase has its greatest activity when _____; glycogen synthase has its greatest activity when _____.phosphorylated; not phosphorylatednot phosphorylated; phosphorylatedphosphorylated; phosphorylatednot phosphorylated; not phosphorylated
The alpha cells of the pancreatic islets secrete _____ in response to _____ glucose levels.glucagon; highepinephrine; lowglucagon; lowinsulin; high