MODIFIED MASTERINGBIO.STAND-ALONE CODE
2nd Edition
ISBN: 9781323199633
Author: Pearson
Publisher: PEARSON C
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Chapter 10.4, Problem 4CC
WHAT IF? → How would you expect the relative abundance of C3 versus C4 and CAM species to change in a geographic region whose climate becomes much hotter and drier, with no change in CO2 concentration?
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How would you expect the relative abundance of C3 versus C4 and CAM species to change in a geographic region whose climate becomes much hotter and drier, with no change in CO2 concentration?
MAKE CONNECTIONS Review the discussion of feedback regulation in Concept 1.1. Could effects of globalwarming on peatlands alter CO2 concentrations in waysthat result in negative or positive feedback? Explain.
Respond to the following questions.
Why might it seem surprising that green light can drive any photosynthesis, given that chlorophyll, the major photosynthetic pigment, is green?
How can it do this?
Suppose that CO2 levels were to rise to 600 ppm, which in fact probably was their level about 300 million years ago. What effect would you suppose that might have regarding competition between C3 and C4 plants? In other words, which of the two kinds of plants would the change favour and why?
Chapter 10 Solutions
MODIFIED MASTERINGBIO.STAND-ALONE CODE
Ch. 10.1 - Prob. 1CCCh. 10.1 - Explain how the use of an oxygen isotope helped...Ch. 10.1 - WHAT IF? The Calvin cycle requires ATP and NADPH,...Ch. 10.2 - What color of light is least effective in driving...Ch. 10.2 - In the light reactions, what is the initial...Ch. 10.2 - Prob. 3CCCh. 10.3 - To synthesize one glucose molecule, the Calvin...Ch. 10.3 - How are the large numbers of ATP and NADPH...Ch. 10.3 - Prob. 3CCCh. 10.3 - DRAW IT Redraw the cycle in Figure 10.19 using...
Ch. 10.3 - Prob. 5CCCh. 10.4 - Describe how photorespiration lowers...Ch. 10.4 - The presence of only PS I, not PS II, in the...Ch. 10.4 - MAKE CONNECTIONS Refer to the discussion of ocean...Ch. 10.4 - WHAT IF? How would you expect the relative...Ch. 10.5 - MAKE CONNECTIONS Can plants use the sugar they...Ch. 10 - Compare the roles of CO2 and H2O in cellular...Ch. 10 - The absorption spectrum of chlorophyll a differs...Ch. 10 - Prob. 10.3CRCh. 10 - Why are C4 and CAM photosynthesis more...Ch. 10 - Explain how all life depends on photosynthsis.Ch. 10 - The light reactions of photosynthesis supply the...Ch. 10 - Which of the following sequences correctly...Ch. 10 - How is photosynthesis similar in C4 plants and CAM...Ch. 10 - Prob. 4TYUCh. 10 - Prob. 5TYUCh. 10 - In mechanism, photophosphorylation is most similar...Ch. 10 - Prob. 7TYUCh. 10 - Prob. 8TYUCh. 10 - EVOLUTION CONNECTION Photorespiration can decrease...Ch. 10 - SCIENTIFIC INQUIRY MAKE CONNECTIONS The following...Ch. 10 - WRITE ABOUT A THEME: ENERGY AND MATTER Life is...Ch. 10 - SYNTHESIZE YOUR KNOWLEDGE Watennelon snow in...
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- WHAT IF? Consider a grassland with five trophic levels:grasses, mice, snakes, raccoons, and bobcats. If youreleased additional bobcats into the grassland, howwould grass biomass change if the bottom-up modelapplied? If the top-down model appliedarrow_forwardMAKE CONNECTIONS Refer to the discussion of oceanacidification in Concept 3.3. Ocean acidification andchanges in the distribution of C3 and C4 plants may seemto be two very different problems, but what do theyhave in common? Explain.arrow_forwardA food chain would be a better resource than a food web to answer which question? How does energy move from an organism in one trophic level to an organism on the next trophic level? How does energy move within a trophic level? What preys on grasses? How is organic matter recycled in a forest?arrow_forward
- please draw! Model/diagram the sources and sinks of carbon in the global ecosystem. You will need to create TWO models/diagrams of the sources and sinks of carbon. In the first model diagram the sources and sinks of carbon in a natural, pre-industrial landscape. In the second model, diagram the sources and sinks of carbon in a landscape altered by human activity and industry. Finally, write a few short sentences on what you would expect the atmospheric levels of CO2 to be in each model and why they would or would not be similar.arrow_forwardHAT IF? If global warming increases average temperatures on Earth by 4°C in this century, predict whichbiome is most likely to replace tundra in some locationsas a result. Explain your answerarrow_forwardTest Your Understanding 16 Would the microclimate of an ant be the same as that of an elephant living in the same area? Why or why not?arrow_forward
- If the algae that live in corals need CO2 as a carbon source for photosynthesis, why do scientists argue that global increases in CO2 are playing a role in the decline in coral reefs around the world?arrow_forwardThinking Analytically Is phytoplankton productivity highest at the ocean surface? What advantage would optimum productivity at a depth below the surface provide to phytoplankton?arrow_forwardWHAT IF? Most prairies experience regular fires, typically every few years. If these disturbances were relativelymodest, how would the species diversity of a prairielikely be affected if no burning occurred for 100 years?Explain your answerarrow_forward
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