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To explain: The reason that consumption of a large amount of carbon dioxide by living trees does not make much contribution in the reduction of global warming.
Concept introduction:
The earth’s surface has enormous amount of carbon. It moves through the biosphere in the processes mediated by photosynthetic plants on land and in sea. This is represented as the carbon cycle, which involves two main processes namely photosynthesis and respiration. The photosynthesis process involves fixation of atmospheric carbon in plants to form organic molecules such as sugars required for life processes. Respiration is the process through which carbon is returned to the atmosphere from dead plants in the form of carbon dioxide.
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Chapter 10 Solutions
Campbell Biology (11th Edition)
- As CO2 concentrations increase in the atmosphere, biologists continue to explore the role of respiration from plants as a small but potentially important contribution beyond fossil fuel combustion. The data in the Table were collected from the leaf of a sagebrush plant from a semiarid ecosystem in Wyoming, enclosed in a chamber that measures the rate of CO2 exchange. The respiration rate is the amount of CO2 in micromoles lost by the leaf per square meter per second, which results in the negative numbers. The temperature values are from the leaves as they are heated or cooled during the measurements. Observation Temperature (C) Respiration Rate (mol/m2/s) 1 25 -2.0 2 30 -2.7 3 35 -4.1 4 40 -5.8 5 20 -1.3 6 15 -1.0 7 10 -0.7 Cengage Learning 2017 What describes the relationship between temperature and respiration, a line or a curve? Does the Q10 that you calculated in 2 suggest a line or a curve? Source: Data based on unpublished research by Brent Ewers, University of Wyoming.arrow_forwardWhy are the rates of photosynthesis and cellular respiration dependent upon temperature?arrow_forwardExploration Act Complete the table below using the following interactive website. http://www.tv411.org/science/tv411-whats-cooking/photosynthesis-science-lesson "Photowynthesis: Science Lesson." TV411, Education Development Center, 2014. Substance Description How Used by Plants gas in the atmosphere that is produced Carbon Dioxide by Carbon based fuel when its burned. A building block for glucose It consists of two hydrogen atoms bonded Maintain the turgidity of cell walls. to an oxygen atom. Water To convert carbon dioxide Light To convert carbon dioxide Chlorophyll Green pigment found in leaves A carbohydrąte that is the product of photosynthesis. For protein synthesis or cell division Glucose A gaseous element that makes up about 21 percent of the Earth's atmosphere. Stored for energy and released by a byproduct Охудen It captures energy from sunlight, converts it and stores it in ATP or NADPH. Absorbs sunlight Chloroplast It captures chemical energy obtained from the breakdown of…arrow_forward
- Watermelon snow in antarctica is caused by a species of photosynthetic green algae a the tribes in sub-zero temperatures.These algae are also found in high altitude year-round snow field.In both location uv light levels tend to be high based on what you have learned this week propose an explanation for what is photosynthesis a reddish pink.arrow_forwarddose growing more plants and increasing the abundance of other photosynthetic autotrophs regulate the "greenhouse effect"? Why or why not?arrow_forwardProvide one way you can reduce carbon emissions.arrow_forward
- A Lab Data NaHC 1 budy volume U₂ (ML) Tube 1 Green Light 3.3 3.5 3.7 3.8 4 2.1 H June cre Rate of volume change(- hr Time(min) How to Calculate Rate of Volume Change Green light Rate of photosynthesis mL Rate of photosynthesis ( -) = Rate of volume change light mL hr hr Time (min) 0 5 10 15 20 Rate of volume change (mL/hr) Tube 2 Green Control 3.3 3 2.6 2.3 1.9 -4.2 Tube 1 Blue Light 2.9 4.2 5.5 6.7 8 15.3 шп hr × 60(¹ Tube 2 Blue Control 2.9 2.6 2.2 1.9 1.5 -4.2 Blue light mL hr Rate of volume change covered liji - Xarrow_forwardrate of photosynthesis below. displayed in the Diagram 8: Temperature and Rate of Photosynthesis 5 10 15 20 25 30 35 40 temperature (°C) Select the passage below that is an example of how high temperatures greatly reduce the rate of photosynthesis. O Grass changes from green to brown in late fall/ early winter. O Grass becomes green when watered during the summer time. O Grass changes from green to brown in the middle of the summer. O Grass changes from brown to green in the spring time.arrow_forwardBackground: One of the main drivers of climate change is the emissions of carbon dioxide gas into the atmosphere from the burning of fossil fuels. This has altered the global carbon cycle. using the link below to watch https://youtu.be/xk11DVaAjEA PROMPT: 1) What role does photosynthesis paly in the global carbon cycle? 2) What are fossil fuels and how are they altering the global carbon cycle? 3. Learn about carbon sequestration. Briefly explain what it is and how it can help to mitigate the impacts of climate change. Post a link an example of where/how this is being implemented.arrow_forward
- The Calvin Cycle: a. Cannot occur in the light. b. Is independent of the light reactions. c. Is a requirement for photosynthetic plants but has no effect on the rest of the biospherearrow_forwardThe Carbon Cycle Carbon dioxide in atmosphere Weathering of terrestrial rocks Air sea gas exchange Respiration Human emissions Respiration Terrestrial photosynthesis Oceans Soil carbon Leaching/Runoff Ocean sediments Marine photosynthesis Microbial respiration and decomposition Fossil carbon Uplifting According to this image of the carbon cycle, from your OpenStax textbook, which of the following removes carbon from the atmosphere? photosynthesis weathering of terrestrial rocks human emissions O cellular respiration by plants and animalsarrow_forwardHow does the combustion of fossil fuels influence our planet? Be sure to explain how the following are directly related to the combustion of fossil fuels: acid deposition, sea level rise, global climate change, greenhouse gasses and one other event of your choosing.arrow_forward
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