Do brain cells store glucose as glycogen?
Do brain cells store glucose as glycogen?
Homework Answers
Ans) In humans, glycogen is made and stored primarily in the cells of the liver and skeletal muscle. Liver glycogen stores serve as a store of glucose for use throughout the body, particularly the central nervous system. The human brain consumes approximately 60% of blood glucose in fasted, sedentary individuals.
- And because the brain can't store energy as fat or glycogen—a storage molecule made of glucose—like other parts of the body can, it needs a continuous supply of fuel. Like every cell in the body, brain cells use glucose for energy, but that's all they'll eat.
During glycogenolysis, muscle cells consume most of the glucose released from the stored glycogen; while liver...
During glycogenolysis, muscle cells consume most of the glucose released from the stored glycogen; while liver cells export most of the glucose released from the stored glycogen. Why do the muscles and liver behave so differently and how do you explain this phenomenon?
CONNECT THE FOLLOWING TERMS: organismal respiration cellular respiration lungs brain cell mitochondria glycogen glucose ATP ADP...
CONNECT THE FOLLOWING TERMS: organismal respiration cellular respiration lungs brain cell mitochondria glycogen glucose ATP ADP oxygen carbon dioxide energy
Like humans, yeast (Saccharomyces cerevisiae) can store sugar in the form of glycogen. Thus when glucose...
Like humans, yeast (Saccharomyces cerevisiae) can store sugar in the form of glycogen. Thus when glucose is in short supply, glycogen can be broken down and its subunits can enter glycolysis. Use the following picture of a small glycogen molecule to assist when answering this question. Before baking bread it is often customary to pre-soak the yeast in water. In this water environment there is no simple sugar nor complex starches for the yeast to use as an energy source...
What is happening in a healthy individual about an hour into a glucose tolerance test? (Note:...
What is happening in a healthy individual about an hour into a glucose tolerance test? (Note: At this early time-point, blood glucose levels are still high. Also, remember that a person who is taking a glucose tolerance test was fasting for 12 hours prior to the test!) (Select ALL that apply!) Hint: Review pages 319-325, 462-467 and 489-491 of Tymoczko 3E before attempting this question. Glucose is being exported by the liver Glucose is being taken up by the liver...
Identify the FALSE statement about resting muscle cells: A.store glucose in the form of glycogen B.store...
Identify the FALSE statement about resting muscle cells: A.store glucose in the form of glycogen B.store creatine phosphate C.Use glucose as their preferred fuel source D.make more ATP than they currently need in order to have some extra on hand if they need to contract, and in order to make creatine phosphate E.aerobic respiration can provide a muscle cell with enough ATP to power activity for a long time
Question 5 3 pts What is the role of UDP-glucose in glycogen synthesis? O UDP-glucose reacts with a glycogen chain and extends its length by one glucose unit. O UDP-glucose adds a glucose unit to...
Question 5 3 pts What is the role of UDP-glucose in glycogen synthesis? O UDP-glucose reacts with a glycogen chain and extends its length by one glucose unit. O UDP-glucose adds a glucose unit to UTP O UDP glucose reacts with ATP to form UTP All of the above. Question 6 3 pts What is the role of "glucagon- and epinephrine-triggered cAMP cascades" in regulating or influencing glycogen synthesis? O These cascades turn on or stimulate glycogen synthesis. O These...
Model 2 - Feedback Control of Blood Glucose Pancreas .. Liver Other cells OO Blood glucose...
Model 2 - Feedback Control of Blood Glucose Pancreas .. Liver Other cells OO Blood glucose is too high. Cycle A Blood glucose drops. Baseline blood glucose level. Blood glucose rises. Glucose Insulin Glycogen Glucagon Cycle B Blood glucose is too low. 7. Where in the body does insulin and glucagon originate? 8. In what form is glucose stored in the liver and what is the consequence in terms of glucose blood levels? 10. Which hormone (insulin or glucagon) helps...
Hi I have an question that follow: "Glycogen that is broken down in muscle cells leads...
Hi I have an question that follow: "Glycogen that is broken down in muscle cells leads to the production of ATP. Briefly describe the catabolic processes that occurs that leads to the production of this high amount of energy." My teacher gave use this answer "Describe glycogenolysis and continue to include the complete breakdown of glucose to show how ATP is formed.". I understand that glycogenolysis is the breakdown of glycogen and we get glucose and glucose-6-phosphate but how do...
2. For the calculations of the purity of glycogen the estimated molecular mass of glucose in glycogen was less than tha...
2. For the calculations of the purity of glycogen the estimated molecular mass of glucose in glycogen was less than that of glucose alone. i) what is the theoretical mass difference and i) explain why the mass difference occurs. Total must be less than 50 words. (1 marks) i)
2. For the calculations of the purity of glycogen the estimated molecular mass of glucose in glycogen was less than that of glucose alone. i) what is the theoretical mass difference...
U glucagoni, un c. epinephrine; glucagon d. epinephrine; insulin e. glucagon; glycogen Glucagon increases blood glucose...
U glucagoni, un c. epinephrine; glucagon d. epinephrine; insulin e. glucagon; glycogen Glucagon increases blood glucose levels by stimulating what? O a. muscle cells to make glycogen Ob. muscle cells to break down muscle glycogen c. liver cells to break down liver glycogen d. both liver and muscle cells to break down their glycogen stores Ce. liver cells to make glycogen All statements regarding diabetes are true EXCEPT which one a. Usually when type 2 diabetics lose some excess body...
Like humans, yeast (Saccharomyces cerevisiae) can store sugar in the form of glycogen. Thus when glucose is in short supply, glycogen can be broken down and its subunits can enter glycolysis. Use the following picture of a small glycogen molecule to assist when answering this question. Before baking bread it is often customary to pre-soak the yeast in water. In this water environment there is no simple sugar nor complex starches for the yeast to use as an energy source...
Question 5 3 pts What is the role of UDP-glucose in glycogen synthesis? O UDP-glucose reacts with a glycogen chain and extends its length by one glucose unit. O UDP-glucose adds a glucose unit to UTP O UDP glucose reacts with ATP to form UTP All of the above. Question 6 3 pts What is the role of "glucagon- and epinephrine-triggered cAMP cascades" in regulating or influencing glycogen synthesis? O These cascades turn on or stimulate glycogen synthesis. O These...
Model 2 - Feedback Control of Blood Glucose Pancreas .. Liver Other cells OO Blood glucose is too high. Cycle A Blood glucose drops. Baseline blood glucose level. Blood glucose rises. Glucose Insulin Glycogen Glucagon Cycle B Blood glucose is too low. 7. Where in the body does insulin and glucagon originate? 8. In what form is glucose stored in the liver and what is the consequence in terms of glucose blood levels? 10. Which hormone (insulin or glucagon) helps...
2. For the calculations of the purity of glycogen the estimated molecular mass of glucose in glycogen was less than that of glucose alone. i) what is the theoretical mass difference and i) explain why the mass difference occurs. Total must be less than 50 words. (1 marks) i)
2. For the calculations of the purity of glycogen the estimated molecular mass of glucose in glycogen was less than that of glucose alone. i) what is the theoretical mass difference...
U glucagoni, un c. epinephrine; glucagon d. epinephrine; insulin e. glucagon; glycogen Glucagon increases blood glucose levels by stimulating what? O a. muscle cells to make glycogen Ob. muscle cells to break down muscle glycogen c. liver cells to break down liver glycogen d. both liver and muscle cells to break down their glycogen stores Ce. liver cells to make glycogen All statements regarding diabetes are true EXCEPT which one a. Usually when type 2 diabetics lose some excess body...
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