Homework Answers
Alcoholic fermentation converts one mole of glucose into two moles of ethanol and two moles of carbon dioxide, producing two moles of ATP in the process. The overall chemical formula for alcoholic fermentation is: C6H12O6 → 2 C2H5OH + 2 CO. Sucrose is a dimer of glucose and fructose molecules...
So, it is a CO2 gas which is produce during fermentation of sugars in the presence of yeast.
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Question 12 2 pts A Finish This photo shows yeast fermenting sugars. What gas has been...
In fermentation of sugars by yeast, what are the reactants? O C.H12O6 + 2 CO2 O...
In fermentation of sugars by yeast, what are the reactants? O C.H12O6 + 2 CO2 O C6H1206 O2 CO2 + 2 ATP O 2 C2H5OH + 2 ATP O 2 CO2+ 2 C2H5OH + 2 ATP
Incorrect Question 2 0/1 pts What are the waste products of alcohol fermentation in yeast? O...
Incorrect Question 2 0/1 pts What are the waste products of alcohol fermentation in yeast? O carbon dioxide and pyruvate O carbon dioxide and water carbon dioxide and lactic ac id O carbon dioxide and ethanol
Question 12 2 pts How long has it been that scientists have accepted that the nucleus...
Question 12 2 pts How long has it been that scientists have accepted that the nucleus of the atom consists of neutrons and protons? Think of your answers in terms of order of magnitude. about a decade about a century about a thousand years since Aristotle
Microbiology question. The metabolism of anaerobic ciliates has just been elucidated and it shows a chain of commensal reactions. Draw a diagram and describe this chain of commensalism where the produ...
Microbiology question. The metabolism of anaerobic ciliates has just been elucidated and it shows a chain of commensal reactions. Draw a diagram and describe this chain of commensalism where the products of one prokaryote in the ciliate are used by the next. The prokaryotes involved are a methanogen, a hydrogenosome prokaryote, 2 different sulphate reducing bacteria and a methanotroph. (Hint: start with the products of the host ciliate fermenting bacterial prey).
Question 12 5 pts In the reaction of nitrogen gas, N2, with hydrogen gas, H2, to...
Question 12 5 pts In the reaction of nitrogen gas, N2, with hydrogen gas, H2, to form ammonia gas, NH3, how many moles of hydrogen are needed to react with 2 moles of nitrogen? N2 + 3H2 - 2 NH3
13. Yeast are eukaryotic, single-celled fungus (this is not part of this homework question, but you...
13. Yeast are eukaryotic, single-celled fungus (this is not part of this homework question, but you could test yourself by describing the carbon cycle around yeast). Yeast reproduce quickly (under optimal conditions, yeast cells can double their population every 100 minutes). Yeast signal to potential partners by producing an attractive pheromone - a chemical smell, but the effect of the strong signal depends on the environment. In Environment A, yeast with the strong signaling allele are preferred as mates, but...
Question 7 1 pts The following two-step mechanism has been proposed for the gas phase decomposition...
Question 7 1 pts The following two-step mechanism has been proposed for the gas phase decomposition of nitrous oxide: N20 (g) → N2 (g) + O (g) step 1 N20 (g) + O (g) - N2(g) + O2(g) step 2 Overall Reaction: 2 N20 (g) → 2N2 (g) + O2 (g) What is the molecularity of the first and second elementary steps of the mechanism? The first step is termolecular, and the second step is bimolecular, Both steps are bimolecular,...
Question 1 3 pts What are the products of glycolysis when yeast ferment? ATP and glucose CO2 and alcohol pyruvates and...
Question 1 3 pts What are the products of glycolysis when yeast ferment? ATP and glucose CO2 and alcohol pyruvates and ATP Question 2 3 pts Leaded gasoline, originally developed to decrease pollution, is now banned because the lead(II) bromide, PbBr2, emitted when it burns decomposes in the atmosphere into two serious pollutants, lead and bromine. Determine the oxidation number for each atom in the equation. Pb and Br2 are 0; and PbBr2 are +2 and -1 respectively only the...
(sorry for the poor quality photo) but any help is appreciated on parts (b) and (c) with work 12- 2. (12 pts total)...
(sorry for the poor quality photo) but any help is appreciated
on parts (b) and (c) with work
12- 2. (12 pts total) A map of equipotential surfaces is shown below. The equipotential surfaces are labeled with units of Volts and the x-y units on the map are in mm. [mmけ a. (3 pts) Rank the magnitudes of the electric fields at points A, B, and C from smallest to largest. Justify your answer bX6 pts) Estimate the magnitude of...
Question 12 2 pts Carbon has an atomic number of 6. This means it has 6...
Question 12 2 pts Carbon has an atomic number of 6. This means it has 6 protons and 6 electrons. How many valence electrons does carbon have? 2 pts Question 13 What is the major difference between ionic and covalent bonds?
In fermentation of sugars by yeast, what are the reactants? O C.H12O6 + 2 CO2 O C6H1206 O2 CO2 + 2 ATP O 2 C2H5OH + 2 ATP O 2 CO2+ 2 C2H5OH + 2 ATP
Incorrect Question 2 0/1 pts What are the waste products of alcohol fermentation in yeast? O carbon dioxide and pyruvate O carbon dioxide and water carbon dioxide and lactic ac id O carbon dioxide and ethanol
Question 12 2 pts How long has it been that scientists have accepted that the nucleus of the atom consists of neutrons and protons? Think of your answers in terms of order of magnitude. about a decade about a century about a thousand years since Aristotle
Question 12 5 pts In the reaction of nitrogen gas, N2, with hydrogen gas, H2, to form ammonia gas, NH3, how many moles of hydrogen are needed to react with 2 moles of nitrogen? N2 + 3H2 - 2 NH3
13. Yeast are eukaryotic, single-celled fungus (this is not part of this homework question, but you could test yourself by describing the carbon cycle around yeast). Yeast reproduce quickly (under optimal conditions, yeast cells can double their population every 100 minutes). Yeast signal to potential partners by producing an attractive pheromone - a chemical smell, but the effect of the strong signal depends on the environment. In Environment A, yeast with the strong signaling allele are preferred as mates, but...
Question 7 1 pts The following two-step mechanism has been proposed for the gas phase decomposition of nitrous oxide: N20 (g) → N2 (g) + O (g) step 1 N20 (g) + O (g) - N2(g) + O2(g) step 2 Overall Reaction: 2 N20 (g) → 2N2 (g) + O2 (g) What is the molecularity of the first and second elementary steps of the mechanism? The first step is termolecular, and the second step is bimolecular, Both steps are bimolecular,...
Question 1 3 pts What are the products of glycolysis when yeast ferment? ATP and glucose CO2 and alcohol pyruvates and ATP Question 2 3 pts Leaded gasoline, originally developed to decrease pollution, is now banned because the lead(II) bromide, PbBr2, emitted when it burns decomposes in the atmosphere into two serious pollutants, lead and bromine. Determine the oxidation number for each atom in the equation. Pb and Br2 are 0; and PbBr2 are +2 and -1 respectively only the...
(sorry for the poor quality photo) but any help is appreciated
on parts (b) and (c) with work
12- 2. (12 pts total) A map of equipotential surfaces is shown below. The equipotential surfaces are labeled with units of Volts and the x-y units on the map are in mm. [mmけ a. (3 pts) Rank the magnitudes of the electric fields at points A, B, and C from smallest to largest. Justify your answer bX6 pts) Estimate the magnitude of...
Question 12 2 pts Carbon has an atomic number of 6. This means it has 6 protons and 6 electrons. How many valence electrons does carbon have? 2 pts Question 13 What is the major difference between ionic and covalent bonds?
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