Homework Answers
1. Answer: CO2.
Solution: Pyruvate is formed by the glycolytic breakdown of glucose. Pyruvate is decarboxylated into acetyl CoA and the reaction is catalyzed by Pyruvate Dehydrogenase Complex. This enzyme complex requires five different coenzymes or prosthetic groups and thiamine pyrophosphate (TPP) is one of them. In the absence of thiamine, the enzyme would not be working and pyruvate would not enter into Kreb's cycle for its complex breakdown into CO2. Therefore, these liver cells would have less CO2 than the normal liver cells with thiamine.
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A patient presents with a deficiency of thiamine. If this patient's...
35. Which of the following alipose tissue secreted factors would you considera as a therapeute Adiponectin...
35. Which of the following alipose tissue secreted factors would you considera as a therapeute Adiponectin Leptie c Resistin Retinal Sinding protein 4 INF alpha 36. Wich of the following is an antagonisti pair for the short-term regulation of hunger? h 2 CC and leptin relin and CCK plocagon and insulin insulin and PYY leptin and insulin thermogenesis is due to the production of across the inner mitochondrial membranes which causes leakage of onshig b. boshivering: insulin protons C glucose...
The patient was a 2 year old boy who presented with fasting hypoglycemia and acidosis. The...
The patient was a 2 year old boy who presented with fasting hypoglycemia and acidosis. The liver was enlarged three-fold and kidneys two-fold. Hypoglycemia responded to oral doses of glucose but not to administered glucagon or epinephrine. During hypoglycemic episodes, lactic acid in the blood increased almost 10-fold higher than normal. Unlike the response in normal individuals, administration of oral galactose did not increase blood glucose concentrations but blood lactate levels were increased. Urine contained high levels of lactate. A...
Which of the following metabolic changes will occur in a typical human after a meal balanced...
Which of the following metabolic changes will occur in a typical human after a meal balanced in carbohydrates, protein, and fat is consumed? (Select ALL that apply!) Liver glycogen synthesis increases Muscle glycogenolysis (glycogen breakdown) increases Liver gluconeogenesis decreases Insulin levels in the blood decrease Ketone body production in the liver is increased ..... Which of the following metabolic changes will occur in a typical human during 12 hours of fasting? (Select ALL that apply.) Liver glycogen synthesis decreases Liver...
match the following 1. Fructose 1,6-bisphosphate is converted to Fructose 6- phosphate through this enzyme _____...
match the following 1. Fructose 1,6-bisphosphate is converted to Fructose 6- phosphate through this enzyme _____ 2. Synthesis of glucose from noncarbohydrate precursors _____ 3. Stage in which two molecules of ATP are consumed _____ 4. This is formed from pyruvate in yeast and several other microorganisms through fermentation _____ 5. The isomerization of glucose 6-phosphate to fructose 6-phosphate is a coversion of an aldose into a …._____ 6. Pyruvate is converted by pyruvate carboxylase into this intermediate _____ 7....
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...
1. 2. 3. 4. Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate...
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Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate ~2-phosphoglycerate 1) fructose-6-phosphate→ fructose-1,6-bisphosphate . glucose glucose-6-phosphate Select all that apply. Alcohol fermentation: consumes ATP as it produces ethanol. O produces carbon dioxide begins as pyruvate is decarboxylated to acetaldehyde in a reaction catalyzed by alcohol dehydrogenase m regenerates NAD requires the enzyme alcohol dehydrogenase, In the figure below, what is the reaction occurring at the location...
1. What is happening in a healthy individual about an hour into a glucose tolerance test? (Note: At this early time-poin...
1. 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. A. Glucose is being exported by the liver B. Glucose is being taken up...
Can someone quick answer/check these questions? Thank you, will rate! (the answers that I have came...
Can someone quick answer/check these questions? Thank you, will rate! (the answers that I have came up with are in bold) Please help 51- Glycogenesis involves the following steps a) isomerisation b) activation c) elongation or coupling d) branching e) all of the above 52 During the breakdown of glycogen, free glucose is formed from A. the reducing end. B. the non-reducing end. C. glucose residues in an a 1-->4 linkage to the chain. D. glucose residues in an...
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...
1. There's a branching point in cellular respiration involving pyruvate. Pyruvate can undergo lactic acid fermentation...
1. There's a branching point in cellular respiration involving pyruvate. Pyruvate can undergo lactic acid fermentation or enter the mitochondria to enter the citric acid cycle. What determines what happens to pyruvate? A. Energy demands of the cell B. 15% concentrated power of will C. pH of the intracellular fluid D. Presence/absence of oxygen In the fed state, how is glucose used in the body? Select all correct answer choices. A. Used in glycogenesis to create glycogen in skeletal muscles...
35. Which of the following alipose tissue secreted factors would you considera as a therapeute Adiponectin Leptie c Resistin Retinal Sinding protein 4 INF alpha 36. Wich of the following is an antagonisti pair for the short-term regulation of hunger? h 2 CC and leptin relin and CCK plocagon and insulin insulin and PYY leptin and insulin thermogenesis is due to the production of across the inner mitochondrial membranes which causes leakage of onshig b. boshivering: insulin protons C glucose...
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...
1.
2.
3.
4.
Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate ~2-phosphoglycerate 1) fructose-6-phosphate→ fructose-1,6-bisphosphate . glucose glucose-6-phosphate Select all that apply. Alcohol fermentation: consumes ATP as it produces ethanol. O produces carbon dioxide begins as pyruvate is decarboxylated to acetaldehyde in a reaction catalyzed by alcohol dehydrogenase m regenerates NAD requires the enzyme alcohol dehydrogenase, In the figure below, what is the reaction occurring at the location...
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