Write the overall reaction for Step 6 of the TCA cycle (succinate -> fumarate), showing structures...
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Write the overall reaction for Step 6 of the TCA cycle (succinate
-> fumarate), showing structures...
Write the overall reaction for Step 8 of the TCA cycle (malate -> oxaloacetate), showing the...
Write the overall reaction for Step 8 of the TCA cycle (malate -> oxaloacetate), showing the structures for malate and oxaloacetate. What other molecule is involved in Step 8 and what is it converted to (acronyms are fine)?
A) Write the overall reaction for step 5 of the TCA Cycle (succinyl-CoA -> succinate), showing structures for succiny...
A) Write the overall reaction for step 5 of the TCA Cycle (succinyl-CoA -> succinate), showing structures for succinyl- CoA and succinate. Be sure to include the other molecules that take part in this step (there should be another reactant besides succinyl-CoA and two other products besides succinate). B) Step 5 is an example of an acyl transfer reaction. Circle the atoms in succinyl-CoA that make up the acyl group being transferred.
Part B Use the structures given in the cycle shown before this part identify the enzymes involved in each step of the citric acid cycle by completing each sentence Match the words in the left column...
Part B Use the structures given in the cycle shown before this part identify the enzymes involved in each step of the citric acid cycle by completing each sentence Match the words in the left column to the appropriate blanks in the sentences on the right. View Available Hint(s) Reset Help isocitrate dehydrogenase aconitase citrate synthase fumarate hydratase succinate dehydrogenase succinyl-CoA synthetase a-ketoglutarate dehydrogenase malate dehydrogenase In step 1, oxaloacetate condenses with acetyl-CoA to form citrate, which is catalyzed by...
(35 pts) The overall objective of metabolism is to generate energy in the form of ATP by oxidizing carbon and reducing oxygen. (a) (2 pts) Write chemical reaction for the only oxidation step i...
(35 pts) The overall objective of metabolism is to generate energy in the form of ATP by oxidizing carbon and reducing oxygen. (a) (2 pts) Write chemical reaction for the only oxidation step in glycolysis with full chemical structures of the reactant(s) and product(s), list the name(s) of the enzyme(s) and cofactor(s) involved in the equation. Indicate which carbons are oxidized in the chemical structures (b) (8 pts) Write the chemical reactions for all oxidation steps for citrate acid cycle...
Question 6 6. (10 pts) For the following step in the citric acid cycle, COO H...
Question 6
6. (10 pts) For the following step in the citric acid cycle, COO H COO CH Succinate dehydrogenase + FAD + FADH CH, OOC H COO Succinate Fumarate a. What class of enzyme catalyzes this reaction? b. How does this step ultimately contribute to the formation of ATP? Be specific, c. Knowing that the next step is a hydration of the alkene, briefly explain why this step needed to occur? That is, why not hydrate the succinate?
6. (10 pts) For the following step in the citric acid cycle, COO H COO CH...
6. (10 pts) For the following step in the citric acid cycle, COO H COO CH Succinate dehydrogenase + FAD + FADH CH, OOC H COO Succinate Fumarate a. What class of enzyme catalyzes this reaction? b. How does this step ultimately contribute to the formation of ATP? Be specific, c. Knowing that the next step is a hydration of the alkene, briefly explain why this step needed to occur? That is, why not hydrate the succinate?
This is a biochemistry question i need answers to 6-12 What is the purpose of fermentation...
This is a biochemistry question i need answers to 6-12
What is the purpose of fermentation of pyruvate to lactate or ethanol? to produce additional ATP to provide a precursor for lactose synthesis to regenerate NAD* for glycolysis to prevent pyruvate from entering the TCA cycle none of the above Pyruvate kinase catalyzes what reaction? conversion of phosphoenol-pyruvate to pyruvate phosphorylation of pyruvate to 3-phosphoglycerate conversion of pyruvate to acetaldehyde and CO_2 conversion of pyruvate to lactate conversion of pyruvate...
QUESTION 5 This question explores the Calvin cycle in plants. A summary of the three stages of CO...
QUESTION 5 This question explores the Calvin cycle in plants. A summary of the three stages of CO, assimilation in photosynthetic organisms is shown below (Fig. 20-31 from the text book). All the reactions of the Calvin cycle in detail are shown on the last page. Only the first three reactions are directly involved in carbon-fxation, assimilation and reduction, to Stage 3: ATP3 Regeneration of (3) Stage 1a Ribulose 1.5 e (GAP). The rest of the pathway results in the...
Photosynthesis Worksheet 1. Write the overall reaction for photosynthesis: 2. What does photosynthesis require in addition...
Photosynthesis Worksheet 1. Write the overall reaction for photosynthesis: 2. What does photosynthesis require in addition to water and carbon dioxide? 3. What is the principal pigment of plants? 4. Circle the letter of the region(s) of the visible spectrum in which chlorophyll absorbs light best. a. blue region b. green region c. red region d. yellow region 5. Chloroplasts contain saclike photosynthetic membranes called 6. The fluid surrounding the thylakoid membranes in the chloroplasts is called the 7. What are the two stages of photosynthesis called? 8. Complete...
FIGURE 1 ! Figure 1. Lactate metabolism in tumors: a simplified cartoon showing lactate being shuttled...
FIGURE 1 ! Figure 1. Lactate metabolism in tumors: a simplified cartoon showing lactate being shuttled to and from cancer cells and its potential role as a signaling molecule in driving angiogenesis. Increasing pyruvate inhibits formation of 2- oxoglutarate, with the net effect of less degradation of HIF-ia in the proteasome and increased VEGF and angiogenesis. Note that pyruvate can be increased by hypoxia "backing up" the TCA cycle, or by importation of lactate via MCT1s. Some lactate shuttling likely...
Part B Use the structures given in the cycle shown before this part identify the enzymes involved in each step of the citric acid cycle by completing each sentence Match the words in the left column to the appropriate blanks in the sentences on the right. View Available Hint(s) Reset Help isocitrate dehydrogenase aconitase citrate synthase fumarate hydratase succinate dehydrogenase succinyl-CoA synthetase a-ketoglutarate dehydrogenase malate dehydrogenase In step 1, oxaloacetate condenses with acetyl-CoA to form citrate, which is catalyzed by...
(35 pts) The overall objective of metabolism is to generate energy in the form of ATP by oxidizing carbon and reducing oxygen. (a) (2 pts) Write chemical reaction for the only oxidation step in glycolysis with full chemical structures of the reactant(s) and product(s), list the name(s) of the enzyme(s) and cofactor(s) involved in the equation. Indicate which carbons are oxidized in the chemical structures (b) (8 pts) Write the chemical reactions for all oxidation steps for citrate acid cycle...
Question 6
6. (10 pts) For the following step in the citric acid cycle, COO H COO CH Succinate dehydrogenase + FAD + FADH CH, OOC H COO Succinate Fumarate a. What class of enzyme catalyzes this reaction? b. How does this step ultimately contribute to the formation of ATP? Be specific, c. Knowing that the next step is a hydration of the alkene, briefly explain why this step needed to occur? That is, why not hydrate the succinate?
6. (10 pts) For the following step in the citric acid cycle, COO H COO CH Succinate dehydrogenase + FAD + FADH CH, OOC H COO Succinate Fumarate a. What class of enzyme catalyzes this reaction? b. How does this step ultimately contribute to the formation of ATP? Be specific, c. Knowing that the next step is a hydration of the alkene, briefly explain why this step needed to occur? That is, why not hydrate the succinate?
This is a biochemistry question i need answers to 6-12
What is the purpose of fermentation of pyruvate to lactate or ethanol? to produce additional ATP to provide a precursor for lactose synthesis to regenerate NAD* for glycolysis to prevent pyruvate from entering the TCA cycle none of the above Pyruvate kinase catalyzes what reaction? conversion of phosphoenol-pyruvate to pyruvate phosphorylation of pyruvate to 3-phosphoglycerate conversion of pyruvate to acetaldehyde and CO_2 conversion of pyruvate to lactate conversion of pyruvate...
QUESTION 5 This question explores the Calvin cycle in plants. A summary of the three stages of CO, assimilation in photosynthetic organisms is shown below (Fig. 20-31 from the text book). All the reactions of the Calvin cycle in detail are shown on the last page. Only the first three reactions are directly involved in carbon-fxation, assimilation and reduction, to Stage 3: ATP3 Regeneration of (3) Stage 1a Ribulose 1.5 e (GAP). The rest of the pathway results in the...
FIGURE 1 ! Figure 1. Lactate metabolism in tumors: a simplified cartoon showing lactate being shuttled to and from cancer cells and its potential role as a signaling molecule in driving angiogenesis. Increasing pyruvate inhibits formation of 2- oxoglutarate, with the net effect of less degradation of HIF-ia in the proteasome and increased VEGF and angiogenesis. Note that pyruvate can be increased by hypoxia "backing up" the TCA cycle, or by importation of lactate via MCT1s. Some lactate shuttling likely...
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