1. Oxidation is a favorable process in an aerobic environment, which is the reason cells are able to derive energy from the oxidation of macromolecules. Once carbon has been oxidized to __________, its most stable form, it can only cycle back into the organic portion of the carbon cycle through __________. a. CH3, combustion b. CO, reduction c. CO2, respiration d. CO2, photosynthesis

1. Oxidation is a favorable process in an aerobic environment, which is the reason cells are able to derive energy from the oxidation of macromolecules. Once carbon has been oxidized to , its most stable form, it can only cycle back into the organic portion of the carbon cycle through . a. CH3, combustion b. CO, reduction c. CO2, respiration d. CO2, photosynthesis

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter6: Where It Starts-photosynthesis

Section: Chapter Questions

Problem 11SA: The Calvin-Benson cycle starts with _______. a. the absorption of photon energy b. carbon fixation...

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26. Oxidation is a favorable process in an aerobic environment, which is the reason cells are able to derive energy its most stable form, it from the oxidation of macromolecules. Once carbon has been oxidized to can only cycle back into the organic portion of the carbon cycle through A. CO2; photosynthesis B. CH3; combustion C. CO2; respiration D. CO; reduction
Ethanol is one example of alternative fuels for powering our cars and trucks. Ethanol can be produced in different ways, but most often by microorganisms acting on plant materials such as corn. Advocates argue that burning ethanol would not alter the net emission of CO2 even though when ethanol is involved in combustion it produces CO2. What are the pros and cons of producing and burning ethanol?
1. Find the incorrect statement. a. During cellular respiration, carbon-containing molecules become successively more oxidized until they reach their most oxidized form, as CO2. b. The cycling of carbon through the biosphere first requires the incorporation of inorganic CO2 into organic molecules. c, Plants and algae are photosynthetic organisms that release O2 into the atmosphere. d. Only plants and algae are capable of performing photosynthesis. e. The oxidation of a molecule is always coupled to the reduction of another molecule. 2.You are required to prepare a 0.25 M solution of glucose (f.w. 180 g/mole) in your rotation lab. Your mentor forgot to indicate how much, so you assume she wants a whole liter of it. How many grams of glucose do you need? How is the volume adjusted? a. Place 90 g of glucose in an Erlenmeyer flask or beaker and add 1 L of tap water. b. Place 90 g of glucose in a graduated cylinder or a volumetric flask and fill with deionized…
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17.Which of the following diagrams represents the correct cycling of gases? O A. H2 Photosynthesis Respiration O2 В. O2 Photosynthesis Respiration . O2 Respiration Photosynthesis CO2 O D. CO2 Respiration Photosynthesis H2
A. Highlight all the organisms that CAN do photosynthesis (you might need to google search what these are) Venus fly trap Mycorrhizal fungus Cyanobacteria Red algae Sponges Corn (Zea mays) B. Summarize the purpose of photosynthesis______ C. How could you tell or measure the rate of photosynthesis? ____ D. What is a redox reaction? ___ E. When the water molecule donates its electron to the chlorophyll molecule the water molecule was ______ while the chlorophyll was ______. F. When the carbon chain gains electrons from NADPH the carbon chain has been _____. G. Discuss how the chloroplast structure is arranged using the following terms (include picture too) chloroplast, thylakoid, stroma, chlorophyll, H. Light reaction and Calvin cycle: what is the overall purpose of each one?
The following equation (look photo) summarizes the reactants and products of A. Aeorbic respiration B. Photosynthesis
2. Synthesis gas, a mixture that includes the fuels CO and H2 is used to produce liquid hydrocarbons and methanol. It is made at pressures up to 100. atm by oxidation of methane followed by the steam re-forming and water-gas shift reactions. Because the process is exothermic, temperatures reach 950-1100°C, and the conditions are such that the amounts of H2, CO, CO2, CH4, and H20 leaving the reactor are close to their equilibrium amounts in these reactions: CH4 (g) + H20 (g) CO (g) + 3 H2 (g) CO (g) + H2O (g) 5 CO2 (g) + H2 (g) (steam re-forming) (water-gas shift) Calculate the AH°, AS°, AG°, and K (at 298 K) for these two steps in this industrial a. process b. Assuming relatively little change in H or G, what is S for these two steps at 1000.°C? C. If the overall reaction for these two reactions is: 2 CH4 (g) + 3 H2O (g) 5 CO2 (g) + CO (g) + 7 H2 (g) Using standard molar formation thermodynamic values, is this reaction spontaneous at 1000.°C?
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1. Which form of carbon is found in aquatic environments, but never as a gas in the atmosphere? A. calcium carbonate (CaCO:) B. carbon monoxide (CO) C. carbon dioxide (CO2) D. methane (CH4) E. water (H2O)
Photo-oxidation is: A. photorespiration B. photolysis C. light and oxygen induced breakdown D. All of the above