BIO 117/118-LAB MANUAL>CUSTOM<
15th Edition
ISBN: 9781307026757
Author: Mader
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 7, Problem 2TC
Rotenone is a broad-spectrum insecticide that inhibits the electron transport chain. Why might it be toxic to humans?
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Extremophiles are microorganisms that can survive and proliferate in extreme environments. One group of such microorganisms are lithotrophs. These are found deep
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carbon.
Imagine that you are studying a newly discovered lithotroph and are trying to determine what it uses as a source of electrons for reducing CO2 and for producing energy.
Which one of the following conditions must be met for a molecule to serve as a useful electron donor?
Oxidation of the molecule occurs with a decrease in free energy.
Oxidation of the molecule occurs with an increase in free energy.
Reduction of the molecule occurs with a decrease in free energy.
O Reduction of the molecule occurs with an increase in free energy.
Write the name of inhibitors of all complexes of electron
transport chain.
Nitrosomonas is a photophobic (light-avoiding) chemoautotrophic bacterium that converts ammonia into nitrite. Explain how the organism can fix CO2 via the Calvin cycle in the absence of sunlight.
Chapter 7 Solutions
BIO 117/118-LAB MANUAL>CUSTOM<
Ch. 7.1 - Describe the overall equation for cellular...Ch. 7.1 - Prob. 2LOCh. 7.1 - Prob. 3LOCh. 7.1 - Explain the role of NAD+ and FAD in cellular...Ch. 7.1 - Distinguish between the aerobic and anaerobic...Ch. 7.1 - Prob. 3CYPCh. 7.1 - Prob. 1ACh. 7.1 - Prob. 2ACh. 7.1 - Prob. 3ACh. 7.1 - Prob. 4A
Ch. 7.1 - Prob. 5ACh. 7.2 - Describe the location and inputs and outputs of...Ch. 7.2 - Explain why ATP is both an input and output of...Ch. 7.2 - Explain why there is an energy-investment phase...Ch. 7.2 - Prob. 2CYPCh. 7.2 - 6. During glycolysis, what is the net production...Ch. 7.2 - Prob. 7ACh. 7.3 - Explain how ATP can continue to be produced in the...Ch. 7.3 - Describe the advantages and disadvantages of...Ch. 7.3 - Describe the environmental conditions that would...Ch. 7.3 - Prob. 2CYPCh. 7.3 - Prob. 8ACh. 7.3 - Prob. 9ACh. 7.4 - Prob. 1LOCh. 7.4 - Summarize the inputs and outputs of the...Ch. 7.4 - Prob. 3LOCh. 7.4 - How might a meal of a cheeseburger and fries be...Ch. 7.4 - Prob. 2QTCCh. 7.4 - Prob. 1CYPCh. 7.4 - Prob. 2CYPCh. 7.4 - Discuss why there is variation in the number of...Ch. 7.4 - Prob. 10ACh. 7.4 - Which of these is not true of the citric acid...Ch. 7.4 - Which of these is not true of the electron...Ch. 7.4 - The oxygen required by cellular respiration is...Ch. 7 - Prob. S2.5BYBCh. 7 - Prob. S3.3BYBCh. 7 - Figure 6.3 How does the ATP cycle resemble a...Ch. 7 - What are the differences between the aerobic and...Ch. 7 - How is the energy of a glucose molecule harvested...Ch. 7 - How are other organic nutrients, such as proteins...Ch. 7 - Bacteria do not have mitochondria, and yet they...Ch. 7 - Rotenone is a broad-spectrum insecticide that...Ch. 7 - Some fat-burning compounds accelerate the movement...
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- Is malonate may decrease or increase the efficiency of cells to produce ATP?arrow_forwardFluconazole is used to treat yeast infections by inhibiting the production of ergosterol. What would happen if you took away the ability for the yeast to produce ergosterol?arrow_forwardCyanide is a chemical that irreversibly binds to (i.e. prevents the functioning of) the enzyme cytochrome oxidase, an important enzyme in the electron transport system. a) Explain, at the cellular level, why cyanide is a lethal chemical. b) Suggest at least one other cellular consequence of cyanide (i.e. what else happens to the electron transport system when cyanide is present), and an explanation of this effect.arrow_forward
- List the three chemical processes that can lead to the removal of ions from solution and thus drive a metathesis reaction. Give one example for each of the three chemical processes.arrow_forwardChemolithotrophs near hydrothermal vents support a variety of other life-forms there. Explain how their role is analogous to that of photosynthetic organisms in terrestrial environments.arrow_forwardIn what form is energy transferred in a redox reaction?arrow_forward
- Why we use glutaraldehyde in production of biomaterials ? What can we use instead of glutaraldehyde?arrow_forward5. a) The cell creates molecules of NADH and FADH2to use in the electron transport chain as they are electron carrier molecules. The electron transfers from these moleculesdrives the movement of what molecule across the mitochondrial membrane?b) What is chemiosmosis?c) How does the cell use chemiosmosis to drive overcome the thermodynamic barrier of bringing phosphates close togehter to create ATP?d) What steps of oxidative phosphorylation are in the cytosol and which are in the mitochondria?e) Cellular respiration can be controlled at the post-translational level. What does this mean, using GLUT as an example? Why is post-translational control of GLUT evolutionarilyadaptive over transcriptional control?f) How does establishment of equillibria of various molecules control metabolic reactions? What are three ways high ATP in the cell control cellular respiration?g) Why are the enzymes controlling the initial steps of various biochemical pathways are targeted by allosteric control?arrow_forwardIn the previous question, we identified what products are needed and made at each step of the electron transport chain. In this question, I'd like you to think about what would happen if we applied an herbicide that prevented plant growth by inhibiting some of the pieces in your diagram above. For example, if we applied an herbicide to our plants and it affected the ability of Photosystem II to work, it would prevent he production of oxygen. Let's say we apply an herbicide to our plants and it affects the function of ATP synthase. What product would be inhibited? Group of answer choices ATP NADPH G3P Oxygenarrow_forward
- Triclosan is a broad-spectrum antibacterial agent used in many household products. It is structurally similar to polychlorobiphenylol, a substrate that binds to the active site of the enzyme sulfotransferase. Based on these facts, you can conclude that triclosan most likely: lowers the activation energy of chemical reactions. functions as an enzyme when sulfotransferase is absent. is a competitive inhibitor. acts as a noncompetitive inhibitor.arrow_forwardHow did inhibitors reveal the order of electron transport?arrow_forwardThe photosynthetic process used by the green sulfur bacteria, under anaerobic conditions, is best represented by which of the following balanced equations? cell bio 6CO2 + 12H2S C6H12O6 + 6S2 + 6H2O C6H12O6 + C6H12O6 C12H22O11 + H2O 6CO2 + 12H2O C6H12O6 + 6O2 + 6H2O C12H22O11 + H2O C6H12O6 + C6H12O6 C6H12O6 + 6O2 + 6H2O 6CO2 + 12H2Oarrow_forward
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