Biology: Concepts and Investigations
4th Edition
ISBN: 9780078024207
Author: Mariëlle Hoefnagels Dr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 5, Problem 1WIO
Imagine that multiple simultaneous volcanic eruptions send black ash into Earth’s atmosphere, making photosynthesis impossible anywhere on Earth for many years. What would be the consequence to plants? To animals? To microbes?
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Why, then, is there such a diversity of photosynthetic organisms?
What is the origin of oxygen on earth? What would happen to earth’s supply of oxygen if photosynthesis suddenly were to cease?
Matter is constantly cycled between living and non living parts of the environment. Processes like photosynthesis and respiration allow the carbon cycle to regenerate needed substances by recycling earth’s atoms. A diagram of the carbon cycle is shown. Each arrow represents a process in the cycle. Which explanation best describes the process in the cycle. Which explanation best describes the process that occurs at the arrow marked B?
A) plants use carbon dioxide from the atmosphere in the process of photosynthesis to produce glucose
B) plants release carbon dioxide into the atmosphere in the process of photosynthesis to produce glucose
C) plants use carbon dioxide from the atmosphere in the process of cellular respiration to convert glucose to atp energy
D) plants release carbon dioxide into the atmosphere in the process of cellular respiration to convert glucose to atp energy
Chapter 5 Solutions
Biology: Concepts and Investigations
Ch. 5.1 - What is photosynthesis? Describe the reactants and...Ch. 5.1 - Prob. 2MCCh. 5.1 - Prob. 3MCCh. 5.1 - Prob. 4MCCh. 5.1 - How did the origin of photosynthesis alter Earths...Ch. 5.2 - Prob. 1MCCh. 5.2 - Prob. 2MCCh. 5.2 - Prob. 3MCCh. 5.2 - How does the reaction center chlorophyll interact...Ch. 5.3 - Prob. 1MC
Ch. 5.3 - Prob. 2MCCh. 5.4 - Prob. 1MCCh. 5.4 - Prob. 2MCCh. 5.4 - Prob. 3MCCh. 5.4 - Prob. 4MCCh. 5.5 - What is the relationship between the light...Ch. 5.5 - Prob. 2MCCh. 5.6 - Why is the Calvin cycle also called the C3...Ch. 5.6 - Prob. 2MCCh. 5.6 - What conditions maximize photorespiration?Ch. 5.6 - Prob. 4MCCh. 5.6 - How is the CAM pathway similar to C4 metabolism,...Ch. 5.7 - Prob. 1MCCh. 5.7 - Prob. 2MCCh. 5 - Where does the energy come from to drive...Ch. 5 - Prob. 2MCQCh. 5 - Prob. 3MCQCh. 5 - The evolution of photosynthesis resulted in a. an...Ch. 5 - Prob. 5MCQCh. 5 - Prob. 6MCQCh. 5 - Prob. 7MCQCh. 5 - A plant that opens its stomata only at night is a...Ch. 5 - Imagine that multiple simultaneous volcanic...Ch. 5 - Prob. 2WIOCh. 5 - Prob. 3WIOCh. 5 - Would a plant grow belier in a room painted blue...Ch. 5 - Determine whether each of the following molecules...Ch. 5 - Of the many groups of photosynthetic bacteria,...Ch. 5 - Prob. 7WIOCh. 5 - Over the past decades, the CO2 concentration in...Ch. 5 - How does photosynthesis help compensate for...Ch. 5 - How is the CAM pathway adaptive in a desert...Ch. 5 - Explain how C4 photosynthesis is based on a...Ch. 5 - Explain why each of the following misconceptions...Ch. 5 - Prob. 1PITCh. 5 - 2. How would you incorporate the Calvin cycle,...Ch. 5 - Prob. 3PITCh. 5 - Prob. 4PITCh. 5 - Prob. 5PIT
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- Why is carbon important to life? What is the role of photosynthesis in the carbon cycle? What is the role of cellular respiration in the carbon cycle? How does the burning of fossil fuels contribute to the carbon cycle? How do death and decomposition contribute to the carbon cycle? Why is nitrogen important to life? How much of the atmosphere is made up of nitrogen gas? Why is N2 (atmospheric nitrogen) not usable by most organisms? What organisms are responsible for nitrogen fixation? How do plants receive the nitrogen that they require? Why are bacteria essential to the carbon and nitrogen cycles?qarrow_forwardWhat is the importance of autotrophs in our ecosystemarrow_forwardWhat relevance does photosynthesis have to the food chain of life on Earth?arrow_forward
- According to the Purple Earth hypothesis, in what order did photosynthesis first occur in the three different domains? From earliest to latest: a. archaeal photosynthesis, bacterial photosynthesis, eukaryotic photosynthesis b. archaeal photosynthesis, eukaryotic photosynthesis, bacterial photosynthesis c. bacterial photosynthesis, eukaryotic photosynthesis, archaeal photosynthesis d. bacterial photosynthesis, archaeal photosynthesis, eukaryotic photosynthesis *arrow_forwardExplain the following observation. When a photosynthetic system is exposed to a brief flash of light, no oxygen is evolved. Only after several bursts of light is oxygen evolved.arrow_forwardPhotosynthesis is the basis for food production on Planet Earth. To fill in the blanks below, choose among the following terms: Word Bank: Glucose, H₂O, O2, CO2, sunlight In Photosynthesis, 6 molecules of + 6 molecules of + + 6 molecules of produce 1 molecule ofarrow_forward
- Background: 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_forwardWhat are three ways that carbon is released into the atmosphere?arrow_forwardMost ecosystems on Earth rely on sunlight as the primary energy source for the synthesis of organic compounds that living organisms need. Sunlight does not penetrate deep enough in the ocean to provide energy for organisms living near hydrothermal vents. How can these densely populated communities survive without energy from the sun? A. chemoheterotrophic bacteria convert organic compounds into carbon dioxide which is used by other organisms as an energy source B. chemoautotrophic bacteria harvest chemical energy from hydrogen sulfide and then provide the basis of food for the vent communities C. chemoheterotrophic bacteria harvest chemical energy from hydrogen sulfide and then provide the basis of food for the vent communities D. chemoautotrophic bacteria fix nitrogen which then is used as a source of energy for other organismsarrow_forward
- Why is photosynthesis essential to life on Earth?arrow_forwardWhy do autotrophs use photosynthesis? Photosynthesis produces carbon dioxide, which other plants use to make sugar. Photosynthesis absorbs oxygen from the air, which reduces the rate of climate change. Autotrophs absorb energy from the sun to make sugars for their own use. Autotrophs absorb energy from the sun to make sugars so that heterotrophs can eat them and get energy.arrow_forwardPhotosynthesis plays an important role in maintaining life in most ecosystems on Earth because it has an impact on how organisms obtain their energy. Write a claim that supports the idea that photosynthesis helps sustain life on Earth, and support that claim with at least one piece of evidence.arrow_forward
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