. Avidin is a protein that binds extremely tightly to biotin, so avidin is apotent inhibitor of biotin-requiring enzyme reactions. Consider glucose biosynthesis from cach of the following substrates and predict which of thesepathways would be inhibited by avidin.(a) Lactate(b) Oxaloacetate(c) Malate(d) Fructose-6-phosphate(e) Phosphoenolpyruvate

The synthesis of glucose from various precursors in the body is called gluconeogenesis. Glucose is…

Answered: . Avidin is a protein that binds…

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter10: From Proteins To Phenotypes

Section: Chapter Questions

Problem 14QP: If phenylalanine was not an essential amino acid, would diet therapy (the elimination of...

See similar textbooks

Similar questions

.Intramitochondrial ATP concentrations are about 5 mM, and phosphate con- centration is about 10 mM. If ADP is five times more abundant than AMP, calculate the molar concentrations of ADP and AMP at an energy charge of 0.85. Calculate AG for ATP hydrolysis at 37 °C under these conditions. The energy charge is the concentration of ATP plus half the concentration of ADP divided by the total adenine nucleotide concentration: [ATP] + 1/2[ADP] [ATP] + [ADP] + [AMP]
After the training of marathon, lactic acid is accumulated in the athlete's thigh muscle. Compare the physiological functions and Vmax of glycogen phosphorylase in actively working skeletal muscle and that in liver After vigorous exercise, the athlete faints due to low blood glucose level. A liver biopsy test shows excess amount of glycogen is present in the liver. Suggest with explanation, which type of enzyme is defective in this case.
. What is down-regulation, and what may cause it to occur?Give an example of down-regulation in the body.
Are these high, low or no activity?
Please help
If you can clearly visualize the chymotrypsin mechanism of action, you should be able to picture the structure of the transition state right after the enzyme attacks the first substrate. Think hard about what we have covered, and visualize that transition state accurately:
Decide whether each of the following statements is true about leucine transaminase. It's an enzyme, and leucine is its substrate. It speeds up the rate at which leucine is converted to other substances. It's a small molecule, with a molecular weight around 50 mol If you were to write a chemical equation for certain biochemical reactions of leucine, leucine transaminase would appear on both sides. Otrue Ofalse Otrue Ofalse Otrue Ofalse Otrue Ofalse X
What are some of the interactions made between ATP and the kinase? Can you please describe bonds that the protein makes with (a) the phosphate groups, (b) the sugar, and (c) the adenine base? Please don't just copy answers from google.. I already read most of em.. :(
In the regulation of glycogen phosphorylase, which of the following statements is true? The inactive T form becomes activated when it gets dephosphorylated. The active R form is inhibited by glucose. Phosphoprotein phosphatase catalyzes the attachment of a phosphate group to a Ser residue in glycogen phosphorylase. The allosteric modulator glucose-6-phosphate promotes the conformation change from inactive T state to active R state.
Match the following molecules with their functions. Molecules CAMP Protein kinase A Glycogen phosphorylase Phosphoglucomutase Functions Converts glucose 1-P to glucose 6-P Phosphorylates a substrate using an inorganic phosphate Second messenger that can activate downstream proteins Phosphorylates a protein using ATP
In class, I mentioned that fructose is metabolized differently in the liver compared to glucose. Refer to the figure shown below to calculate the number ofATPs you would expect from the metabolism of fructose in the liver. Show your work! Fructokinase Fructose Fructose-1-P АТР ADP Aldolase B Dihydroxy- acetone phosphate Glyceraldehyde АТР Triose kinase Triose phosphate isomerase ADP 4 - Glyceraldehyde-3-P Glycolysis Руruvate Acetyl-CoA Fatty acids and triglycerides
Ingesting large amounts of glucose before a marathon might seem to be a good way of increasing the fuel stores. However, experienced runners do not ingest glucose before a race. What is the biochemical reason for their avoidance of this potential fuel? (Hint: Consider the effect of glucose ingestion on the level of insulin.)

SEE MORE QUESTIONS

Recommended textbooks for you

Human Heredity: Principles and Issues (MindTap Co…

Biology

ISBN:

9781305251052

Author:

Michael Cummings

Publisher:

Cengage Learning