a. Discuss the reciprocal/opposite “hormonal” regulation of the most highly regulated steps of these two pathways....
a. Discuss the reciprocal/opposite “hormonal” regulation of the most highly regulated steps of these two pathways. (Remember: there are multiple ways hormones can affect enzyme regulated reactions) (3 pts) [answer here] b. Discuss the reciprocal/opposite “reversible covalent modification” of these two pathways. (3 pts) [answer here] c. Discuss any other reciprocal/opposite type of regulation that occurs in the regulation of these two pathways of glucose metabolism. (3 pts) The two pathway are glycolysis and gluconeogenesis
Homework Answers
Glycolysis is a set of reactions that occur in the cytoplasm. It
is a catabolic pathway that is independent of the presence or
absence of oxygen. It involves oxidation of one glucose molecule to
two pyruvate molecules.
Gluconeogenesis refers to the biosynthesis of glucose from
non-carbohydrate sources. It is an anabolic pathway that occurs
when blood glucose levels are low.
Green metabolites = Activators
Red metabolites = Inhibitors
Insulin promotes glycolysis while glucagon inhibits it.
Epinephrine promotes gluconeogenesis.
Add Answer to:
a. Discuss the reciprocal/opposite “hormonal” regulation of the
most highly regulated steps of these two pathways....
11. Providing at least three appropriate examples, describe mechanisms that biological systems use to avoid futile...
11. Providing at least three appropriate examples, describe mechanisms that biological systems use to avoid futile cycles (opposing reactions occurring at the same time A futile cycle occurs when two metabolic pathways run simultaneously in opposite directions and have no net effect other than to dissipate energy in the form of heat. 1. if glycolysis and gluconeogenesis were to be active at the same time, glucose would be converted to pyruvate by glycolysis and then converted back to glucose by...
3. (36 points total) A doctor from Cairo, Egypt is perplexed by two twin infants that...
3. (36 points total) A doctor from Cairo, Egypt is perplexed by two twin infants that he is treating for deficiencies in energy production. He has many theories on what could be the issue, but he wants you to help. He presented their case to your lab. You sequence these infants DNA and try to uncover what metabolic problem they may have that is causing this energy-deficient illness they have. A. (10 points) You characterize the enzymes for glycolysis, PDH,...
A drug company attempted to bypass the need for insulin in diabetics by testing a drug...
A drug company attempted to bypass the need for insulin in diabetics by testing a drug that inhibits adenylate cyclase. Discuss the following questions in regard to glycolysis/gluconeogenesis. 1. What would a decrease in adenylate cyclase do to glucose metabolism in the liver (explain in detail pathway/enzyme regulation/overall effect)? How would this possibly affect blood sugar? a. b. Will this drug be a success? What is the potential overall effect of this drug in diabetic humans (would energy usage or...
This discussion focuses on the regulation of glycolysis and gluconeogenesis by phosphofructokinase-2 and will help you...
This discussion focuses on the regulation of glycolysis and
gluconeogenesis by phosphofructokinase-2 and will help you apply
your understanding of these pathways and their regulation to
adaptations in cancerous cells.
You have successfully completed your internship rotation
with the antibiotic group at
MethylTranspharmiX and have moved into
their Cancer Therapeutics division.
In many cancers, cells use aerobic glycolysis rather than
oxidative phosphorylation as their main energy source. This is
known as the Warburg effect, and was first described by Otto...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
Bio 121 I need to make (yeast fermentation) lab report. This is the lab experiment and...
Bio 121
I need to make (yeast fermentation) lab
report.
This is the lab experiment and results:
This is a guide to making the lab report:
General Biology BIO121 Yeast Fermentation Lab Introduction Organisms stay alive by the utilization of energy through metabolism. The energy acquiring pathways in photosynthesis convert radiant energy from the sun into the chemical bond energy of carbohydrates. This photosynthetic process is limited to the producers or autotrophs, which include plants, photosynthetic bacteria and some protists....
1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
3. (36 points total) A doctor from Cairo, Egypt is perplexed by two twin infants that he is treating for deficiencies in energy production. He has many theories on what could be the issue, but he wants you to help. He presented their case to your lab. You sequence these infants DNA and try to uncover what metabolic problem they may have that is causing this energy-deficient illness they have. A. (10 points) You characterize the enzymes for glycolysis, PDH,...
A drug company attempted to bypass the need for insulin in diabetics by testing a drug that inhibits adenylate cyclase. Discuss the following questions in regard to glycolysis/gluconeogenesis. 1. What would a decrease in adenylate cyclase do to glucose metabolism in the liver (explain in detail pathway/enzyme regulation/overall effect)? How would this possibly affect blood sugar? a. b. Will this drug be a success? What is the potential overall effect of this drug in diabetic humans (would energy usage or...
This discussion focuses on the regulation of glycolysis and
gluconeogenesis by phosphofructokinase-2 and will help you apply
your understanding of these pathways and their regulation to
adaptations in cancerous cells.
You have successfully completed your internship rotation
with the antibiotic group at
MethylTranspharmiX and have moved into
their Cancer Therapeutics division.
In many cancers, cells use aerobic glycolysis rather than
oxidative phosphorylation as their main energy source. This is
known as the Warburg effect, and was first described by Otto...
Bio 121
I need to make (yeast fermentation) lab
report.
This is the lab experiment and results:
This is a guide to making the lab report:
General Biology BIO121 Yeast Fermentation Lab Introduction Organisms stay alive by the utilization of energy through metabolism. The energy acquiring pathways in photosynthesis convert radiant energy from the sun into the chemical bond energy of carbohydrates. This photosynthetic process is limited to the producers or autotrophs, which include plants, photosynthetic bacteria and some protists....
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
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