1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
EleoNora [17]
3 years ago
15

1) Glycogen phosphorylase catalyzes the removal of glucose from glycogen. The ∆G°’ for this reaction is 3.1 kJ/mole 1. Calculate

the ratio of [Pi]/[glucose-1-phosphate] when the reaction is at equilibrium. Assume a temperature of 37 °C. (Hint: the removal of glucose units from glycogen does not change the glycogen concentration. And yes, I do mean Pi/glucose-1-phosphate, not the other way around2) The measured ratio of [Pi]/[glucose-1-phosphate] in myocytes (muscle cells) under physiological conditions is more than 100:1. This system is NOT at equilibrium under physiological conditions. 2. Why would a reaction in a cell (and especially a reaction that is part of a larger pathway) not exist at equilibrium?3)What does the ratio of [Pi]/[glucose-1-phosphate] tell you about the relative rates of glycogen phosphorylase and phosphoglucomutase in myocytes?
Biology
1 answer:
Andru [333]3 years ago
4 0

Answer:

1. G° = -RT ln (G1P/P)

3.1 = 8.314 × 310 × ln (G1P/P)

3.1 / 2577.34 = ln (G1P/P)

0.0012 = ln (G1P/P)

0.0012 = (log G1P/P)/log 2.71828

0.4342 × 0.0012 = log G1P/P

0.00052 = log G1P/P

G1P/P = 10^0.00052 = 1.0012

P/G1P = 1/1.0012 = 0.9988

2. The cleavage of glycogen phosphorolytically is beneficial for the cell to conduct the process as the discharged glucose is phosphorylated. A general hydrolytic cleavage would give rise to only a glucose, which has to be phosphorylated again with the help of ATP.  

Another merit of phosphorylated glucose is that it comprises the negative charge and cannot diffuse out of the muscle cell. Thus, the reaction will not be at equilibrium under the physiological conditions and always encourages the generation of the products. The formation of products will amend the change in free energy in such a manner that the reaction will always carry in the forward direction.  

3. Greater the ratio of [Pi]/[glucose-1-phosphate], higher will be the relative rate of glycogen phosphorylase in comparison to the phosphoglucomutase as the transformation of Glu-1-P becomes slow because of lesser accessibility of substrate.  

You might be interested in
The state of maintaining a stable internal environment regardless of changing external conditions is called
Nostrana [21]

Answer:

homeostasis

Explanation:

5 0
3 years ago
Dr. Nachman and his colleagues collected rock pocket mice across 35 kilometers of the Arizona Sonoran Desert, which included bot
vlada-n [284]

Answer:

1)

  • frequencies of light-colored mice  ≅ 0.74
  • frequencies of dark-colored mice ≅ 0.26

2)

  • frequencies of light-colored mice ≅ 0.13
  • frequencies of dark-colored mice ≅ 0.87

3)

  • q² = 0.74
  • p² = 0.02
  • 2pq = 0.24      

4)

  • q² = 0.13
  • p² = 0.4
  • 2pq = 0.46

5)

The dark-colored fur seems to have the greatest overall selective advantage

6)

Dark lava, that changed the color of the substrate, from light to dark.

7)

Because to produce dark color, animals from the different regions suffered different mutations that drove them to have almost the same dark fur color. All of the animals are inhabiting dark substrate, which means that this environmental condition is favoring the same phenotype.

8)

To see if the mice population is evolving, you need to take a sample of animals per year, through many years, and analyze if it is changing or not. If the population is evolving, you will notice a change in the allelic and genotypic frequencies over the years, favoring one genotype or the other. If the population is not evolving, the frequencies will keep equal through the years, it will not change.

Explanation:

Due to technical problems, you will find the complete explanation in the attached files.

Download pdf
8 0
2 years ago
Why are protists like animals?
AfilCa [17]

Answer:

A protozoa is animal-like

Explanation:

They share some traits of animals, they eat things outside of themselves.

4 0
3 years ago
Trichodesmium is a nitrogen-fixing cyanobacteria. Why might this cyanobacteria be important to other organisms in nitrogen-poor
katen-ka-za [31]
Cyanobacteria convert nitrates from the water into nitrogen gas (N2<span>) that is released into the atmosphere</span>
4 0
3 years ago
Read 2 more answers
Explain why the genetic makeup of a population changes over time and not the genetic makeup of the individual.
Scrat [10]
This happens because everyone has a different set of chromosomes and DNA make creating genetic diversity <span />
4 0
3 years ago
Read 2 more answers
Other questions:
  • The Bible gives us no information about science...
    8·1 answer
  • What is true about cardiac muscle structure ?
    6·1 answer
  • When Mendel crossed true–breeding pea plants that have inflated pods (PP) with those that have constricted pods (pp), it was obs
    5·2 answers
  • What is the difference between asexual and sexual reproduction? This is a Science question. PLZ HELP!!!!!!
    8·2 answers
  • What kind of molecule passes through the lipid bilayer of the cell wall memebrane?
    5·1 answer
  • How the does the shape of an enzyme affect the reaction?
    7·1 answer
  • An alcoholic who believes that he is just being a typical college student and does not think his drinking is a problem is most l
    13·1 answer
  • What is fusion and how does it relate to e=mc squared?
    12·1 answer
  • Human blood has a pH of 7.4. How do buffers in the blood affect the pH?
    12·1 answer
  • Design a conceptual or theoretical to explain how the environment climate change has changed over time and to mitigate these cha
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!