Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
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?
A) Photosynthesis and cellular respiration occur only in the light.
B) Photosynthesis occurs only in the light, and cellular respiration occurs only in the dark.
C) Photosynthesis occurs only in the light, and cellular respiration occurs in both the dark and
the light.
D) Photosynthesis and cellular respiration occur in both the dark and the light.
4) Use the following figure to answer the question.
MAY
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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
Ch. 27.1 - Describe two adaptations that enable prokaryotes...Ch. 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. 27.3 - 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 - Prob. 2CCCh. 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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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- While 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_forwardCAM 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_forwardThe 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_forward
- What gas do plants absorb from the atmosphere during photosynthesis? a) Oxygen b) Nitrogen c) Carbon dioxide d) Hydrogenarrow_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_forwardSince 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_forward
- Which 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_forwardWhich 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_forward
- Compare and contrast cell respiration and photosynthesis. a) Photosynthesis stores energy in NADH while cellular respiration stores energy in ATP. b) Photosynthesis releases CO2 while respiration releases O2. c) Only respiration creates ATP. d) Respiration is catabolic while photosynthesis is anabolic.arrow_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_forwardUsing the graph comparing photosynthetic rate and absorption of different wavelengths of light, what can be concluded? a) The photosynthesis rate at 550 nm is the highest b) Chlorophyll a absorbs wavelengths at both ends of the spectrum c) Chlorophyll b is associated with the greatest rate of photosynthesis. d) Carotenoids absorb the narrowest range of wavelengths of lightarrow_forward
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