Where does the pyruvic acid required for cirtic acid cycle come from ?
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Where does the pyruvic acid required for cirtic acid cycle come from ?
Question 15 of 25 > Attempt 5 The pyruvic acid from glycolysis can be converted to acetic acid, which can enter the citric acid cycle. Because this process is a cycle, the atoms entering the cycle must balance the atoms that leave. Consider carbon balance in the citric acid cycle. How many Co, molecules leave the cycle for each acetic acid molecule that enters? For this question, assume that carbon only enters as acetic acid and exits as CO2. Note...
1. Where specifically within the cell does the citric acid cycle take place?__________________________________ 2. How many carbons from the original glucose molecule enter each round of the citric acid cycle?________ 3. How many carbons exit out of the citric acid cycle during each round, as a waste product?_________ Where did the carbons in this waste product originally come from (what molecule)? 4. The role of NAD+ in the citric acid cycle is the same as in glycolysis; namely, to taxi...
where does cancer come from?
5) A semi-permeable membrane is used to separate pyruvic acid from an aqueous solution of 0.1 mg/L pyruvic acid solution. a) Calculate the osmotic pressure expected in the solution, if pyruvic acid completely dissociates. b) Calculate the osmotic pressure expected in the solution if pyruvic acid does not dissociate. c) What is the pka of the solution if the observed osmotic pressure of the solution is 4920 Pa. (hint: Use the values from a and b to estimate the dissociation...
Part D Consider the structure of the following CE-keto carboxylic acid, pyruvic acid, which does not readily undergo decarboxylation: o= Based on the decarboxylation mechanism, identify the unfavorable intermediate that would be formed. ܘ: Eo ܘܒܕ ܘܒ Submit Request Answer
What is the fate of pyruvic acid in an organism that uses aerobic respiration? O A. It is reduced to lactic acid. OB. It is converted into acetyl CoA before the Krebs cycle. OC. It is oxidized in the electron transport chain. OD. It is catabolized in glycolysis. Reset Selection
What is the predominant form of pyruvic acid (pKa =2.50) and lactic acid (pKa = 3.86) at physiological pH (7.4)? Draw the predominant structure of each. In which amino acid does the R group bond to the amino group?
A 0.050 M solution of pyruvic acid, an intermediate in metabolism, has a pH of 1.86. Calculate K_a for pyruvic acid, a weak monoprotic acid.
Light independent reactions/ calvin cycle 1. Where does the Calvin cycle take place? 2. Before the Calvin cycle begins, where is the energy stored? 4. What are the inputs to the Calvin cycle? Where do they come from? 5. Circle the letter of each statement that is true about the Calvin cycle. Correct the false statements. a. The main products of the Calvin cycle are six carbon dioxide molecules. b. Carbon dioxide molecules enter the Calvin cycle from the atmosphere....
The carboxylic acid on the left below is commonly called "pyruvic acid". Draw the structures named to its right. the reaction on the right is used to make soap. the glycerin acts as: a Nucleophile a Leaving Group an acylating agent a base the proposed SnAc reaction on the right does NOT work. Why not.