11. Energy transfer in living things works through redox reactions, in which one
ID: 277713 • Letter: 1
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11. Energy transfer in living things works through redox reactions, in which one substance is another substance, thereby a. b. c. oxidized... losing electrons to it transported... becoming more energetic reduced losing electrons to it oxidized gaining electrons from it 12. are important not so much for the ATP produced in them, but for their and a. The Krebs cycle the ETC... numerous redox reactions b. The Krebs cycle... .the ETC... fatty acid breakdowsn c. Redox reactions... .fatty acid breakdown .. yield of calories d. Glycolysis... the Krebs cycle... yield of electrons transported to the ETC 13. Which stage of respiration do all organisms perform? a. Krebs cycle b. Glycolysis c electron transport chain 14. The process of aerobic cellular respiration can be written as a chemical equation. Which of the following equations best represents the process of cellular respiration? 15. For your cells, what is the preferred source of fuel for cellular respiration? a. Fat b. Protein c. Glucose 16. Which of the following occurs when fats and proteins are metabolized? a. Fats and proteins enter cellular respiration at multiple different points. b. Fats and proteins only undergo glycolysis. c. Fats and proteins are converted to glucose before entering cellular respiration d. Fats and proteins bypass the Krebs cycle and donate electrons directly to the ETC Chapter 8: End-Chapter Review Worksheet 1. Why will the loss of photosynthetic organisms eventually cause a problem for animals? H20 levels will increase a. b. c. d. Temperatures will rise. Atmospheric CO; levels will increase. Atmospheric Oz levels will decrease. h of the following groups of organisms contain NO species that can undergo photosynthesis? a. Protists b. Animals c. Protists d. Bacteria 2. Whic while in the cellular respiration looked at in 5 3. In photosynthesis, energy from the sun is being Chapter 7, energy is being_ a. turned into light turned solely into heat b. stored in carbohydrates... released from storage in food c spent as carbohydrates... stored as carbohydratesExplanation / Answer
11) Option 'a' is the correct answer.
In a redox reaction, one substrate is oxidised by another substrate thereby losing electrons to it. Oxidation refers to the increase in oxidation number of the substrate by losing electrons to another substrate that undergoes reduction by gaining electrons. This coupled reaction is known as redox reaction.
12) Option 'd' is the correct answer.
Glycolysis and Kreb's cycle yield only 2ATP and 1GTP respectively, however these are important in cellular respiration as they provide electrons for Electron transport chain and subsequently oxidative phosphorylation in the form of NADH and FADH2.
13) Option 'b' is the correct answer.
Glycolysis is universal in all organisms, whether they are anaerobic kind of organisms or aerobic organisms. Glycolysis is the first step in respiration as well as fermentation.
14) Option 'd' is the correct answer.
In aerobicn respiration, carbohydrate (C6H12O6) is oxidised in presence of oxygen yielding CO2 and water (H2O). In this process, the energy released is utilized for conversion of ADP to ATP which is the energy currency of cell.
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