CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
12th Edition
ISBN: 9780136920335
Author: Urry
Publisher: PEARSON
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Chapter 52.3, Problem 3CC
MAKE CONNECTIONS → As noted in Figure 52.15, the addition of nutrients to a lake can cause an algal bloom. When these algae die, complex molecules in their bodies are broken down by decomposers using aerobic respiration. Explain why this would reduce the lake's oxygen levels (see Concept 9.1).
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Chapter 52 Solutions
CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
Ch. 52.1 - Explain how the sun's unequal heating of Earth's...Ch. 52.1 - What are some of the differences in microclimate...Ch. 52.1 - WHAT IF? Changes in Earth's climate at the end of...Ch. 52.1 - MAKE CONNECTIONS Focusing just on the effects of...Ch. 52.2 - Based on the climograph in Figure 52.10, what...Ch. 52.2 - Using Figure 52.12, identify the natural biome in...Ch. 52.2 - WHAT IF? If global warming increases average...Ch. 52.3 - Why are phytoplankton, and not benthic algae or...Ch. 52.3 - Prob. 2CCCh. 52.3 - MAKE CONNECTIONS As noted in Figure 52.15, the...
Ch. 52.4 - Give examples of human actions that could expand a...Ch. 52.4 - WHAT IF? You suspect that deer are restricting...Ch. 52.4 - MAKE CONNECTIONS Hawaiian silverswords under-went...Ch. 52.5 - Describe a scenario showing how ecological change...Ch. 52.5 - MAKE CONNECTIONS Commercial fisheries target...Ch. 52 - Suppose global air circulation suddenly reversed,...Ch. 52 - Prob. 52.2CRCh. 52 - Prob. 52.3CRCh. 52 - Interactions between organisms and the environment...Ch. 52 - Suppose humans introduced a species to a new...Ch. 52 - Level 1: Knowledge/Comprehension 1. Which of the...Ch. 52 - Which lake zone would be absent in a very shallow...Ch. 52 - Which of the following is characteristic of most...Ch. 52 - Prob. 4TYUCh. 52 - Prob. 5TYUCh. 52 - When climbing a mountain, we can observe...Ch. 52 - Prob. 7TYUCh. 52 - Prob. 8TYUCh. 52 - Prob. 9TYUCh. 52 - EVOLUTION CONNECTION Discuss how the distribution...Ch. 52 - SCIENTIFIC INQUIRY Jens Clausen and colleagues, at...Ch. 52 - WRITE ABOUT A THEME: INTERACTIONS Global warming...Ch. 52 - SYNTHESIZE YOUR KNOWLEDGE If you were to hike up...
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- Hypoxia in the Gulf of Mexico is caused by: "An overabundance of unicellular algal growth; these algae eventually die and are degraded and consumed by bacteria, which draws down oxygen concentrations, causing hypoxia." "An abundance of raw sewage that stimulates bacterial growth, which draws down oxygen concentrations, causing hypoxia." "The overuse of chemically produced nitrogen fertilizers, which direct;ly stimulate bacterial growth." "Vigorous storms in the Gulf of Mexico waters, which bring low oxygen waters to the surface. " Choices B and C are true.arrow_forwardThinking Analytically Is phytoplankton productivity highest at the ocean surface? What advantage would optimum productivity at a depth below the surface provide to phytoplankton?arrow_forwardReverse electron transport makes unique ecological niches available to micro-organisms. Explain this statement.arrow_forward
- Watermelon snow” in Antarctica is caused by a species of photosynthetic green algae that thrives in subzero temperatures (Chlamydomonas nivalis). These algae are also found in high altitude year-round snowfields. In both locations, UV light levels tend to be high. Based on what you learned this week, propose an explanation for why this photosynthetic alga appears reddish-pink.arrow_forwardA microbe lives solely on acetate. It has an Electron Transport Chain driven by oxygen that has two hydrogen pumps and both NADH and FADH deliver their hydrogens (and electrons) to the first pump hence each generates 2 ATP. How many ATP are generated per acetate molecule?arrow_forwardA toxin that affects cell respiration in mitochondria is classified as an uncoupler if it "uncouples" ____. oxygen generation from water use oxygen use from NADH use ATP generation from oxygen use ATP use from water usearrow_forward
- Compare photo litho autotrophy with chemo-organo heterotrophy. Sun light is the ultimate source of energy and all living organisms obtain their energy directly or indirectly from the sun. However in deep-sea vents (where there is no sun light) life has originated and the many groups of microorganisms are flourishing in such environment. How? Explain your reasoningarrow_forwardGive detailed Solutionarrow_forwardMany microorganisms in lakes use cellular respiration to generate energy. Dumping large amounts of raw sewage into rivers or lakes typically leads to massive fish kills, even if thesewage itself is not toxic to fish. What kills the fish? How might you reduce fish mortality after raw sewage is accidentally released into a small pond?arrow_forward
- Why is a hypotonic buffer used for the resuspension? 1.DCPIP passes easily across the intact chloroplast membrane, but can't get into the thylakoid, so electron transport could not be reliably measured if using a hypotonic buffer. 2.To gently lyse the chloroplasts, leaving the electron transport membranes intact, whilst allowing DCPIP access 3.To gently separate the chloroplasts from each other, leaving the electron transport membranes intact, whilst allowing DCPIP access 4.DCPIP cannot easily across the intact chloroplast membrane, so electron transport could not be reliably measured if using a hypotonic buffer.arrow_forward29. A culture of green algae was kept at a constant temperature and subjected to periods of dark and light. It consumed an average of 7 cm3 of oxygen per hour by respiration in either light or dark conditions. When in light conditions, it produced an average of 23 cm3 of oxygen per hour of photosynthesis. What is the net volume of oxygen produced by the algae over a 24-hour period consisting of 14 hours of dark followed by 10 hours of light? * A. 38 cm3 B. 62 cm3 C. 132 cm3 D. 160 cm3arrow_forwardDuring aerobic respiration in eukaryotes, which substrate molecules provide the oxygen atoms that end up in product water molecules? H2S molecules only H2O and C6H12O6 molecules only CO2 molecules only C6H12O6 and CO2 molecules only O2 molecules onlyarrow_forward
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