Campbell Biology
12th Edition
ISBN: 9780135188743
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
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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- 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_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_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_forwardNumber of oxygen bubbles/Min Number of oxygen bubbles/Min ++ +++> +++ +++> Number of oxygen bubbles/Min Number of oxygen bubbles/Min + + + ++> Sugar molecules dltiuseu Uut UI JUIU Which of the following graphs shows the effect of light intensity on the rate of photosynthesis in a pond weed (Elodea)? A 60 60 50 50 40 + 40 30 30 + 20 20 10 -> 하하 20 25 30 10 15 20 25 30 Distance from light source (cm) Distance from light source (cm) C 50 40 30 10 - 10 to ts 20 25 30 Distance from light source (cm) 10 25 30 Distance from light source (cm) Biology/5090/1 Z2010 [Tarrow_forward
- Although chemoautotrophs serve as the primary producers near hydrothermal vents, animals there still ultimately depend on the photosynthetic activities of plants and cyanobacteria. Why?arrow_forwardWhy is it necessary to lyse the chloroplasts? 1.DCPIP passes easily across the intact chloroplast membrane and the thylakoid membrane, so electron transport could not be reliably measured 2.DCPIP passes easily across the intact chloroplast membrane, but can't get into the thylakoid, so electron transport could not be reliably measured 3.DCPIP cannot easily pass across the intact chloroplast membrane, so electron transport across the thylakoid membrane could not be reliably measuredarrow_forwardWhat is a major difference between cyclic electron flow and linear electron flow? a. Cyclic electron flow generates ATP where linear electron flow does not b. Linear electron flow produces NADPH where cyclic electron flow does not c. Linear electron flow utilizes chlorophyll a pigment molecules but cyclic electron flow does not d. Cyclic electron flow utilizes ferredoxin where linear electron flow does notarrow_forward
- Justify your choice by writing a hypothesis to explain how it has stopped the algae from making ATP, NADPH and sugars. ATP NADPH Sugar Normal Sea Water 5.2 mM 5.3 MM 6.0 mM GBR Sea Water 0.1 mM 0.1 mM 0.2 mM Calvin Cycle High Sea Temperature 7.2 mM ↑ 7.3 mM 0.2 mM Photosystem I Photosystem II Paraquat Diuron Now that you've collected new data, you can change your hypothesis if needed. Explain how the data from the temperature experiment supports your hypothesis. Type your answer herearrow_forwardGreen algae are green, red algae are red, brown algae are brown, and purple bacteria are purple.... compare and contrast how the various types of photosynthetic organisms convert light energy into cellular energy. Be sure to briefly describe how each produces actual energy the cell can use (ie, ADP -> ATP).arrow_forwardIn habitats where water conservation is not especially necessary, is CAM metabolism more or less advantageous than C3 or C4 metabolism? Why?arrow_forward
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