Homework Answers
Lactate is produced by the reduction of pyruvic acid.
H+ is produced by the oxidation of NADH into NAD+ and H+.
Both of these products are formed during fermentation. Fermentation is the process of anaerobic breakdown of glucose. Glucose is first broken down into pyruvic acid by the process of glycolysis. Then pyruvic acid is reduced in to lactate by the action of enzyme lactate dehydrogenase. This is lactic acid fermentation. Pyruvic acid is the final electron acceptor. The electrons are removed from coenzyme NADH to form NAD+ and H+. This leads to the formation of NAD+.
The goal of fermentation is to regenerate the pool of NAD+ so that it can enter aerobic respiration. Fermentation is energetically very poor process because it produces only two molecules of ATP. After NAD+ is reforms, it enters aerobic respiration where one molecule of glucose produces 32 molecules of ATP.
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In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate...
In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate is excreted into the blood and returns to the liver. In the liver, lactate is converted back into glucose by gluconeogenesis. For each given enzyme, identify whether it is involved in the glycolysis pathyway, gluconeogenesis pathway, both pathways, or neither pathway. The enzyme aldolase is involved in The enzyme pyruvate carboxylase is involved in neither pathway. the gluconeogenesis pathway. the glycolysis pathway. The enzyme...
In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate...
In the Cori cycle, when glucose is degraded by glycolysis to
lactate in muscle, the lactate is excreted into the blood and
returns to the liver where it is converted back into glucose by
gluconeogenesis. For each enzyme below, identify whether it is
involved in the glycolysis pathyway, gluconeogenesis pathway, both
pathways or neither pathway.
n the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle the lactate is excreted into MapdEb the blood and returns to...
2a. What is the net yield of ATP from 1 glucose molecule metabolized anaerobically to lactate?...
2a. What is the net yield of ATP from 1 glucose molecule metabolized anaerobically to lactate? b. Why is the end product of anaerobic glycolysis in cells lactate, rather than pyruvate?
In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate...
In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate is excreted into the blood and returns to the liver where it is converted back into glucose by gluconeogenesis. For each enzyme below, identify whether it is involved in the glycolysis pathway, gluconeogenesis pathway, both pathways or neither pathway. aldoses glycolysis gluconeogenesis both neither phosphoenolpyruvate carboxykinase glycolysis gluconeogenesis both neither transketolase glycolysis gluconeogenesis both neither pyruvate kinase glycolysis gluconeogenesis both neither phosphoglycerate kinase glycolysis...
QUESTION 5 Glucose (C&H1206) 2 Lactate (C H,Os) o Compare anaerobic and aerobic catabolism of glu...
Please show calculations, thank
you!
QUESTION 5 Glucose (C&H1206) 2 Lactate (C H,Os) o Compare anaerobic and aerobic catabolism of glucose under standard conditions. The net reactions are shown on the right: He' ~-194 kJ/mol (99%) TAS® ~ +2 kJ/mol ( 1%) ΔGo, ~-196 kJ/mol (a) List possible reason(s) for the aerobic catabolism of glucose yielding so much more ATP than anaerobic catabolism of glucose. Glucose (CH 602 - 6 CO2+ 6 H2O o ΔΗΡ. ~-2800 kJ/mol (98%) T So,...
1. The lactate threshold is when… a. there is a dramatic surge in accumulation of lactate...
1. The lactate threshold is when… a. there is a dramatic surge in accumulation of lactate b. there is a rise of more than .5 to 1 mmol/L in a non-linear fashion c. an untrained subject reaches 65 to 80% of their VO2 max d. a trained subject reaches a 65 to 80% of their VO2 max 2. When is lactate accumulation least likely? a. during aerobic metabolism b. during oxygen deficit c. during glycolysis d. during lactate threshold 3....
o co₂ H₂O Sugar (Glucose) RESPIRATION WILD Gele BION TP но со 1. What two types...
o co₂ H₂O Sugar (Glucose) RESPIRATION WILD Gele BION TP но со 1. What two types of cells contain chloroplasts? 2. Autotrophs make their own food using energy from 3. The food making process is called 4. What are the raw materials for photosynthesis? 5. What simple sugar is produced? 6. What gas is used in the process? What gas is released? 7. Where are most photosynthetic cells in plants found? 8. What compound can be made from glucose and...
In a liver cell converting lactate to glucose by gluconeogensis, which of the following keeps the...
In a liver cell converting lactate to glucose by gluconeogensis, which of the following keeps the concentration of glucose low in the cytosol high energy charge of the cell the flow of glucose into the mitochondria formation of glucose in the endoplasmic reticulum high concentration of fructose 2,6 phosphate in the cytosol Save
a. what requires the coenzyme NADH?? glucose to pyruvate, pyruvate to CoA, or pyruvate to lactate...
a. what requires the coenzyme NADH?? glucose to pyruvate, pyruvate to CoA, or pyruvate to lactate b. what is the step in the synthesis of proteins from RNA called where the genetic message contained in RNA dictates the specific amino acid sequence protein? c.what is the third stage of catabolism for glucose? electron transport chain, citric acid cycle, glycolisis
why does glucose meatabolism end with lactate in the mature RBC instead of with CO2 and...
why does glucose meatabolism end with lactate in the mature RBC instead of with CO2 and H2O as it does in WBC's and nucleares RBC's?
In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate is excreted into the blood and returns to the liver. In the liver, lactate is converted back into glucose by gluconeogenesis. For each given enzyme, identify whether it is involved in the glycolysis pathyway, gluconeogenesis pathway, both pathways, or neither pathway. The enzyme aldolase is involved in The enzyme pyruvate carboxylase is involved in neither pathway. the gluconeogenesis pathway. the glycolysis pathway. The enzyme...
In the Cori cycle, when glucose is degraded by glycolysis to
lactate in muscle, the lactate is excreted into the blood and
returns to the liver where it is converted back into glucose by
gluconeogenesis. For each enzyme below, identify whether it is
involved in the glycolysis pathyway, gluconeogenesis pathway, both
pathways or neither pathway.
n the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle the lactate is excreted into MapdEb the blood and returns to...
2a. What is the net yield of ATP from 1 glucose molecule metabolized anaerobically to lactate? b. Why is the end product of anaerobic glycolysis in cells lactate, rather than pyruvate?
In the Cori cycle, when glucose is degraded by glycolysis to lactate in muscle, the lactate is excreted into the blood and returns to the liver where it is converted back into glucose by gluconeogenesis. For each enzyme below, identify whether it is involved in the glycolysis pathway, gluconeogenesis pathway, both pathways or neither pathway. aldoses glycolysis gluconeogenesis both neither phosphoenolpyruvate carboxykinase glycolysis gluconeogenesis both neither transketolase glycolysis gluconeogenesis both neither pyruvate kinase glycolysis gluconeogenesis both neither phosphoglycerate kinase glycolysis...
Please show calculations, thank
you!
QUESTION 5 Glucose (C&H1206) 2 Lactate (C H,Os) o Compare anaerobic and aerobic catabolism of glucose under standard conditions. The net reactions are shown on the right: He' ~-194 kJ/mol (99%) TAS® ~ +2 kJ/mol ( 1%) ΔGo, ~-196 kJ/mol (a) List possible reason(s) for the aerobic catabolism of glucose yielding so much more ATP than anaerobic catabolism of glucose. Glucose (CH 602 - 6 CO2+ 6 H2O o ΔΗΡ. ~-2800 kJ/mol (98%) T So,...
o co₂ H₂O Sugar (Glucose) RESPIRATION WILD Gele BION TP но со 1. What two types of cells contain chloroplasts? 2. Autotrophs make their own food using energy from 3. The food making process is called 4. What are the raw materials for photosynthesis? 5. What simple sugar is produced? 6. What gas is used in the process? What gas is released? 7. Where are most photosynthetic cells in plants found? 8. What compound can be made from glucose and...
In a liver cell converting lactate to glucose by gluconeogensis, which of the following keeps the concentration of glucose low in the cytosol high energy charge of the cell the flow of glucose into the mitochondria formation of glucose in the endoplasmic reticulum high concentration of fructose 2,6 phosphate in the cytosol Save
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