Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780134153742
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 8, Problem 4AC
Some species of bacteria that live at the surface of sediment on the bottom of lakes are capable of using either glycolysis plus fermentation or
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The energy flow in the ecosystem follows the second law of thermodynamics.Explain.
Which of these statements describes an accurate model for how carbon dioxide and oxygen levels change within the ocean over time? Choose two answers that apply.
A) eutrophication of the ocean leads to an increase in dissolved oxygen.
B) photosynthesis by the phytoplankton increase the oxygen concentration of the ocean.
C) decomposition of dead organic matter decreases the oxygen concentration in the ocean.
D) cellular respiration by primary consumers increases the oxygen concentration in the ocean
E) anaerobic respiration at the ocean floor decreases the carbon dioxide levels in the ocean
State the second law of thermodynamics and apply it to the energy transfer from a trophic level to the next higher trophic level in a food chain.
Chapter 8 Solutions
Biology: Life on Earth Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 8 - Which of the following is True for one glucose...Ch. 8 - 2. The portion of glucose breakdown that produces...Ch. 8 - Prob. 3MCCh. 8 - Prob. 4MCCh. 8 -
5. Which of the following is produced in the...Ch. 8 - Prob. 1FTBCh. 8 - 2. Conditions in which oxygen is absent are...Ch. 8 - Prob. 3FTBCh. 8 - During cellular respiration, the electron...Ch. 8 -
5. The cyclic portion of cellular respiration is...
Ch. 8 - Starting with glucose (C6H12O6), write the overall...Ch. 8 - Draw and label a mitochondrion, and explain how...Ch. 8 -
3. What role do the following play in breaking...Ch. 8 -
4. Outline the two major stages of glycolysis....Ch. 8 - What molecule is the end product of glycolysis?...Ch. 8 -
6. Describe the electron transport chain and the...Ch. 8 - Why is oxygen necessary for cellular respiration...Ch. 8 -
8. Compare the structure of chloroplasts...Ch. 8 - Some species of bacteria use aerobic respiration,...Ch. 8 - Prob. 2ACCh. 8 - Prob. 3ACCh. 8 - Some species of bacteria that live at the surface...
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- Living organisms play an important role in the recycling of many elements within an ecosystem. Discuss how various types of organisms and their biochemical reactions contribute to the recycling of water in an ecosystem. Discuss both biochemistry and ecology in your answer. Include in your answer at least one way in which human activity has an impact on this nutrient cycle. What are the main reservoirs of water in the biosphere?arrow_forwardWhich causes a dense growth of plant life and death of animal life from lack of oxygenarrow_forwardWhich step of the cellular respiration pathway can take place in the absence of oxygen? A.Glycolysis B.Kreb’scycle C.Electron transport chain D.Fermentationarrow_forward
- Use the thawing of the permafrost as your environmental impact which is due to a warmer climate, and then propose a way to reduce the temperature by reducing the amount of CO2 put in to atmosphere. Your experiment should directly relate to the processes of cellular respiration and photosynthesis and show a clear understanding of how those two processes impact energy transfer at a global level.arrow_forwardUse the words obligate, facultative, aerobic, anaerobic, autotroph, and heterotroph to describe the metabolism of a human, oak tree, E. coli, and Methanococcus jannaschii (an organism that lives in deepwater anoxic sediments).arrow_forwardCreate an analogy that represents cellular respiration, focusing on the Krebs cycle and the Electron Transport chain. Include these terms while describing the events of the analogy: pyruvate, ATP synthase, ATP, electrons, mitochondria, NAD+/FADH, NADH/FADH2.arrow_forward
- List two sources of dissolved oxygen in a lake and based on your understanding of those sources, explain how you would expect the amount of dissolved oxygen in a lake to vary between day and nightarrow_forwardThe carbon cycle is one of the nature's processes that exhibits energy flow, via the transfer of chemical energy in carbohydrates, through ecosystems. True False For many organisms, including humans, the terminal electron acceptor is oxygen, the reduced form of this terminal electron acceptor is water, and the overall process is called anaerobic cellular respiration. True Falsearrow_forwardTowards the end of a sprint, a runner often switches from aerobic respiration to ___. alcoholic fermentation glycolysis lactic acid fermentation photorespirationarrow_forward
- During aerobic respiration in eukaryotes, which substrate molecules provide the oxygen atoms that end up in product water molecules? H2S molecules only H2O and C6H12O6 molecules only CO2 molecules only C6H12O6 and CO2 molecules only O2 molecules onlyarrow_forwardIn relation to energy transfer in ecosystem,explain the statement"10kg of deer's meat is equivalent to 1kg of lion's flesh".arrow_forwardExplain how energy flow supports the second law of thermodynamics in an ecosystem.arrow_forward
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