WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
5th Edition
ISBN: 9781319487317
Author: PHELAN
Publisher: INTER MAC
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Chapter 5, Problem 6SA
Summary Introduction
To explain: In a rapidly growing plant, the rate of
Introduction:
Cellular respiration refers to a series of reactions in which the organic molecules are broken down and transferred through a series of electron acceptors to generate energy.
In contrast, photosynthesis is the biochemical process of synthesizing food in plants. In this process, they use sunlight energy to fix water and carbon dioxide into organic substances.
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the root
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Chapter 5 Solutions
WHAT IS LIFE ACHIEVE ACCESS ONLY >I<
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Similar questions
- Consider the relationship between temperature and photosynthesis. As temperatures increase,gases such as CO2 diffuse faster. As a result, plant leaves will lose CO2 at a faster rate thannormal. If the amount of light reaching the leaf and the amount of water available are adequate,predict how this loss of gas will affect photosynthesis in the leaf.arrow_forwardWhat is/are the differences between photosynthesis and respiration? What is the relationship between respiration and plant growth?arrow_forwardIdentify which of the following statements is a lie? Select one: a. ATP is produced in dark reactions. b. Carbon fixation does not need light. c. Plant utilize carbon dioxide in order to produce oxygen.arrow_forward
- Despite the enormous amount of solar energy that plants are exposed to, photosynthesis is only able to transform about 1% to2% of that energy into stored chemical energy. Explain 1 factor responsible for this phenomenon and detail how it contributes to this inefficiency.arrow_forwardRice is the number one food crop, feeding over 50% of the world's population. Some scientists estimate that at the current rate of population growth, rice farmers will need to produce 50% more rice per hectare by 2050. Researchers are working to increase the photosynthetic efficiency of rice to meet the concern over food shortage. Using your knowledge of photosynthesis, suggest features of the plant and photosynthetic process that could be modified.arrow_forwardUse 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_forward
- Cells are open systems that exchange matter and energy with their surroundings. Which of the following best explains why plant cells require sunlight to make organic compounds, according to Gibbs’s theory of free energy? The photosynthetic reaction releases free energy to the surroundings. The photosynthetic reaction’s free energy is in equilibrium. The reactants of photosynthesis have less free energy than the products. The change in free energy (∆G) of the photosynthetic system is less than zero.arrow_forwarda. What is photosynthesis and what is its importance to plant growth and primary productivity? b. What is the balanced equation for photosynthesis and how does it differ from cellular respiration? c. What are the key components of the light and dark reactions and how do you differentiate one from the other? d. How is photosynthesis measured? e. What are the environmental influences on photosynthesis? f. Include illustrations or figures appropriately. g. List your major references (at least five and no more than 10 references)arrow_forwardBoth temperature and light intensity can affect the rate of photosynthesis. However, in this study, the investigator kept the temperature constant and only studied how changes in light intensity affected the rate of photosynthesis, Which of the following best explains the investigator's decision to only study light intensity? Select one or more: a. It is easier to control light intensity than it is to regulate temperature, therefore the investigator chose to measure only light intensity b. Light intensity affects the rate of photosynthesis more than temperature, therefore the investigator chose to measure only light intensity c. none of the answers is correct d. If different light intensities and different temperatures had been studied at the same time, it would not be possible to know which of these factors affected the rate of photosynthesis.arrow_forward
- A group of scientists wants to test the effect of different wavelengths of light on plant photosynthesis. They have 3 treatment groups: red light, green light, and no light. They choose red light because chlorophyll has been shown to absorb red light. They choose green light because chlorophyll has been shown to reflect green light. They choose no light as a negative control to examine the rate of photosynthesis in the absence of light. To measure photosynthetic rate, the scientists use sensors to measure oxygen production of plants exposed to the different light treatments. Choose the best scientific hypothesis: O Photosynthesis is a critical process for plants, and it is of great importance that we understand how it is impacted by different wavelengths of light. O If rate of oxygen production is higher under red light than it is under green light or no light, it proves that red light has the largest effect on photosynthesis. O Because chlorophyll absorbs red light, rate of oxygen…arrow_forwardIs the following statement true or false? Unlike animals, which make many ATP by aerobic respiration, plants make all of their ATP by photosynthesis.arrow_forwardPhotosynthesis directly opposes respiration in determining how plants influence atmospheric CO2 concentrations. When a leaf is in the light, both photosynthesis and respiration are occurring simultaneously. The data in the Table were collected from the leaf of a sagebrush plant that was enclosed in a chamber that measures the rate of CO2 exchange. The same leaf was used to collect the data in Interpret the Data in Chapter 7. Respiration is shown as a negative and photosynthesis as a positive rate of CO2 exchange. The net photosynthesis rate is the amount of CO2 (in micromoles per square meter per second) assimilated by the leaf while respiration is occurring; a positive value indicates more photosynthesis is occurring than respiration. The light exposed to the leaf is quantified as the number of photons in the 400 to 700 nm wavelength, the photosynthetic photon flux density (PPFD); 2,000 mol/m2/s is equivalent to the amount of light occurring at midday in full Sun. Observation Photosynthetic Photon Flux Density (PPFD) (mol/m2/s) Net Photosynthesis (mol/m2/s) 1 2,000 9.1 2 1,500 8.4 3 1,250 8.2 4 1,000 7.4 5 750 6.3 6 500 4.8 7 250 2.2 8 0 -2.0 Why is net photosynthesis negative when PPFD is zero? Looking at the respiration data from Interpret the Data in Chapter 7, at what temperature do you think these data were collected? Source: Data based on unpublished research by Brent Ewers, University of Wyoming.arrow_forward
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