Compute the number of net atp molecules

Assignment Help Biology

Reference no: EM1385083

1. If C-1 of glucose is radioactively labeled and then enters glycolysis, which carbon of G-3-P will be labeled? What fraction of the molecules will carry the radioactive label?

2. 14-CO2 was bubbled through a suspension of liver cells that was undergoing gluconeogenesis from lactate to glucose. Which carbons in the glucose molecule synthesized would become radioactive?

3. (A) In the anaerobic oxidation of glucose to ethanol, which carbon or carbons of glucose would be most rapidly lost as CO2? (B) Conversely, under aerobic conditions pyruvate can be decarboxylated to yield acetyl CoA and CO2. Which carbons of glucose must be labeled with 14C to yield 14CO2?

4. Would 32Pi (radio-labelled phosphate) be incorporated into any glycolytic intermediate or pathway product

5. Pyruvate and ATP are end products of glycolysis. In active muscle cells, pyruvate is converted to lactate and excreted into the blood stream. Lactate is transported to the liver where it is recycled by gluconeogenesis to glucose. The glucose can then be transported back to the muscle for additional ATP synthesis. Why don't active muscle cells export pyruvate to the liver since it too can be converted to glucose by gluconeogenesis?

6. Indicate for the following statements about gluconeogenesis whether they are true or false (T or F).
A. ____ It occurs completely in the mitochondrial matrix.
B. ____ Pyruvate carboxylase if the first enzyme in the pathway.
C. ____ Precursors of glucose include lactate, pyruvate, glycerol and alanine.
D. ____ Only three reactions are needed to bypass the irreversible steps of glycolysis.
E. ____ Some reactions occur in the mitochondrial matrix and some in the cytoplasm.

7. What would be the effect in an individual in whom the enzyme triose phosphate isomerase (TPI) was either deficient or inhibited?

8. Calculate the number of "net ATP" molecules obtained the anaerobic conversion of each of the following sugars to lactate.
(a) Glucose.
(b) Fructose.
(c) Mannose.
(d) Sucrose.

9. What is the ATP yield for the oxidation of one glucose molecule? (a) "Net ATP" after glycolysis and TCA, but not the electron transport chain. (b) "Complete oxidation" going through everything

10. Complete oxidation of glyceraldehyde-3-phosphate (G-3-P) would net how many ATP equivalents?

Reference no: EM1385083

Questions Cloud

Describe happening of water lubrication film under ice skate : Similar reasoning is utilized to describe occurrence of water lubrication film beneath ice skates. Describe your opinion of this explanation?

Aware of the legal requirements of staffing systems : Determine the factors needed to get individual managers to be more aware of the legal requirements of staffing systems and to take steps to ensure that they themselves engage in legal staffing actions. Support your position with evidence or exampl..

Approximate how long it will take to heat a cup of soup : A rectangular barge, 5 m long and 2 m wide, floats in fresh water. How much deeper would it go if there were a 500kg horse on it.

Will trading equity for debt help the industry achieve : Tanenbaum's stock sells at book value. Will trading equity for debt help the industry achieve its EPS goal and if so illustrate what debt level will produce the desired EPS?

Compute the number of net atp molecules : Compute the number of "net ATP" molecules obtained the anaerobic conversion of each of the following sugars to lactate.

What is maximum permissible strength of electric field : how does your answer change if the bubble is elongated in the direction of the electric field and sphere and the dielectric shell are placed in an initially uniform electric field E 0 in the z direction.

Legal status of minors in counselling : You're a counselor at a high school. Critically discuss the legal status of minors and the implications of this status on the counseling relationship.

What is the change in internal energy for process : An engine goes through the following cycle with 2.20 sample of a diatomic gas. I. an isothermas expansion from point a to point b. II. a constant pressure compression from point b to point c. III.

Maximum acceptable tensile service load : Compute the maximum acceptable tensile service load T that may act on a single angle L6x4x3/4 that is welded along only one leg to a gusset plate; thus, there are no holes. The service load is three times the dead load. Solve for a0 A36 steel.

User Account

All Pages