Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Textbook Question
Chapter 27, Problem 2TYU
Photoautotrophs use
(A) light as an energy source and CO2 as a carbon source.
(B) light as an energy source and methane as a carbon source.
(C) N2 as an energy source and CO2 as a carbon source.
(D) CO2. as both an energy source and a carbon source.
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Which of the following is not true about photoautotrophs?(a) They require CO2 and light.(b) They synthesize organic molecules from inorganicmolecules.(c) They are a subdivision of heterotrophs.(d) They are a subdivision of autotrophs.(e) All the above are true.
3) Under what conditions do photosynthesis and cellular respiration occur in plants?
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B) Photosynthesis occurs only in the light, and cellular respiration occurs only in the dark.
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4) Use the following figure to answer the question.
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The energy of sunlight is captured and used to energize electrons, which are then stored in the covalent bonds of sugar molecules. This describes a). Carbon fixation b). Reduction c). The Calvin Cycle d). Photosystems II and I e). Photosynthesis
Chapter 27 Solutions
Campbell Biology (10th Edition)
Ch. 27.1 - Prob. 1CCCh. 27.1 - Contrast the cellular and DNA structures of...Ch. 27.1 - Prob. 3CCCh. 27.2 - Although rare on a per gene basis, new mutations...Ch. 27.2 - Distinguish between the three mechanisms by which...Ch. 27.2 - In a rapidly changing environment, which bacterial...Ch. 27.2 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 27.3 - Distinguish between the four major modes of...Ch. 27.3 - A bacterium requires only the amino acid...Ch. 27.3 - WHAT IF? Describe what you might eat for a...
Ch. 27.4 - Explain how molecular systematics and metagenomics...Ch. 27.4 - WHAT IF What would the discovery of a bacterial...Ch. 27.5 - Explain how prokaryotes, though small, can be...Ch. 27.5 - MAKE CONNECTIONS Review Figure 10.6. Then...Ch. 27.6 - Identify at least two ways that prokaryotes have...Ch. 27.6 - Prob. 2CCCh. 27.6 - Prob. 3CCCh. 27 - Describe features of prokaryotes that enable them...Ch. 27 - Mutations are rare and prokaryotes reproduce...Ch. 27 - Describe the range of prokaryotic metabolic...Ch. 27 - How have molecular data informed prokaryotic...Ch. 27 - In what ways are prokaryotes key to the survivaI...Ch. 27 - Prob. 27.6CRCh. 27 - Genetic variation in bacterial populations cannot...Ch. 27 - Photoautotrophs use (A) light as an energy source...Ch. 27 - Which of the following statements is not true? (A)...Ch. 27 - Prob. 4TYUCh. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 27 - WRITE ABOUT A THEME: ENERGY In a short essay...Ch. 27 - SYNTHESIZE YOUR KNOWLEDGE Explain how the small...
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- CAM photosynthesis differs from C4 photosynthesis in that in CAM… a) photorespiration occurs at a high rate. b) photosynthesis occurs entirely at night. c) photosynthesis extracts carbon from organic compounds. d) photosynthesis is more efficient in times of drought. e) photosynthesis is more efficient in high light environments.arrow_forwardWhile sloshing around in the swampy wetlands of a nearby forest preserve, a small child notices a rotting tree branch covered in fungi. What are these organisms doing on this tree branch? (a) These are producers acquiring energy through photosynthesis. (b) These are consumers acquiring energy from the wood and releasing nutrients back to the earth. (c) These are decomposers acquiring energy from the wood and releasing nutrients back to the earth. (d) These are decomposers releasing nutrients back to the earth, but acquiring no energy for themselves in the process.arrow_forwardFrom a plant's perspective, the main purpose of photosynthesis is to Group of answer choices a)to produce sugars and oxygen for heterotrophs. b)plants are not cognitive organisms and therefore we have no idea what the "purpose" of photosynthesis is for the plant. c)to produce enough O2 gas for the plant to survive through the night. d)make sugars, such as glucose, to use for building cell walls and for energy needed by the plant.arrow_forward
- The respiration rate (as measured by the slope of the line) of an organism is calculated by O A) dividing the weight (g) of the organism by the amount of CO2 produced (ppm) B) dividing the time elapsed (per second) by CO2 produced (ppm) C) dividing the CO2 produced (ppm) by the weight of the organism (g) D) dividing the CO2 produced (ppm) by the time elapsed (per second)arrow_forwardWhat gas do plants absorb from the atmosphere during photosynthesis? a) Oxygen b) Nitrogen c) Carbon dioxide d) Hydrogenarrow_forwardThe connection between producers and consumers is that only: A) heterotrophs can perform photosynthesis to produce energy for all life B) autotrophs can use sun energy to u to produce energy for all organisms C) producers use cellular respiration to produce energy for all life D) heterotrophs can perform cellular respiration producing oxygen for all organismsarrow_forward
- Since carotenoids are part of the _________, their electrons are not passed on when they get excited. A) electron carriers of the photosystem B) electron transport chain C) antenna complex of the photosystem D) reaction center of the photosystemarrow_forwardWhich definition is INCORRECT? A) O Photoexcitation: light absorption leads to raising an electron to a higher energy state. C) O Photolysis: light absorption coupled to splitting a molecule. D) O Photophosphorylation: a form of substrate level phosphorylation used for ATP formation E) O Photosynthesis: is often photoexcitation and photolysis coupled with CO2 fixation and biosynthesisarrow_forwardPlants are classified as because they use for their carbon source. O A) autotrophs; CO2 B) autotrophs; glucose C) heterotrophs; CO2 D) phototrophs; CO2 E) heterotrophs; glucosearrow_forward
- Which is one way in which photosynthesis is involved in the carbon cycle? A) Photosynthesis produces carbondioxide (CO2) which is released into the atmosphere B) Photosynthesis returns carbon from organism to the soil C) Photosynthesis release glucose into the atmosphere D) Photosynthesis uses carbon dioxide (CO2) from the atmospherearrow_forwardExplain wellarrow_forwardWhat would be the effect on production of ATP from photosynthesis, assuming no effect on enzyme/protein stability, if the pH of the chloroplast stroma were lowered? a) It would increase b) It would decrease c) It would stay the samearrow_forward
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