Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 8, Problem 4AC
Some species of bacteria that live at the surface of sediment on the bottom of lakes are capable of using either glycolysis plus fermentation or
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In Eutrophication, excess nutrients can cause algal blooms. However, what happens when the algae eventually die?
Bacterial – Increase or decrease
Oxygen – Increase or decrease
Biological Oxygen Demand (BOD) is a measure of?
How much oxygen needed is needed for growth of aerobic bacteria
The extent to which rivers or lakes are polluted with inorganic industrial waste compounds
How much oxygen is needed for survival of aerobic bacteria
The extent to which rivers or lakes are polluted with organic waste compounds
Examine the figure below and answer the following questions using the letters below (type, A, B, C,
or D in the blanks)
a. Which zone has the lowest Biological Oxygen Demand?
b. Which zone has the lowest Dissolved Oxygen?
c. Which zone has the highest Biological Oxygen Demand?
d. Which zone shows the greatest change in Dissolved Oxygen?
Types of
organisms
Normal clean water organisms Trash fish Fish absent,
: (carp, gar. : fungi, sludge
(Trout, perch, bass,
mayfly, stonefly)
Trash fish
(carp, gar,:
leeches)
worms,
bacteria
(anaerobic)
leeches)
8 ppm
Dissolved
8 ppm
oxygen
(ppm)
Biological
oxygen
demand
Decomposition Septic
Zone
Rec very
Zone
Clean
Zone
Clean Zone
Zone
B
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Chapter 8 Solutions
Biology: Life on Earth (11th Edition)
Ch. 8 - Which of the following is True for one glucose...Ch. 8 - 2. The portion of glucose breakdown that produces...Ch. 8 - Prob. 3MCCh. 8 - Prob. 4MCCh. 8 -
5. Which of the following is produced in the...Ch. 8 - Prob. 1FTBCh. 8 - 2. Conditions in which oxygen is absent are...Ch. 8 - Prob. 3FTBCh. 8 - During cellular respiration, the electron...Ch. 8 -
5. The cyclic portion of cellular respiration is...
Ch. 8 - Starting with glucose (C6H12O6), write the overall...Ch. 8 - Draw and label a mitochondrion, and explain how...Ch. 8 -
3. What role do the following play in breaking...Ch. 8 -
4. Outline the two major stages of glycolysis....Ch. 8 - What molecule is the end product of glycolysis?...Ch. 8 -
6. Describe the electron transport chain and the...Ch. 8 - Why is oxygen necessary for cellular respiration...Ch. 8 -
8. Compare the structure of chloroplasts...Ch. 8 - Some species of bacteria use aerobic respiration,...Ch. 8 - Prob. 2ACCh. 8 - Prob. 3ACCh. 8 - Some species of bacteria that live at the surface...
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- Matter is continually recycled between abiotic and biotic components of Earth's ecosystem in biogeochemical cycles. the various cycles differ from one another in several key aspects of their storage, conversion and modes of transport. A. Describe the critical processes by which nitrogen is cycled through the biotic and abiotic components of earth’s atmosphere and identify the primary storage sink for nitrogenarrow_forwardGasping for Oxygen Explain how each of the following contribute to dissolved oxygen decline in aquatic ecosystems: Rising water temperatures slowing streams organic pollutants/eutrophicationarrow_forwardLiving organisms play an important role in the recycling of many elements within an ecosystem. Discuss how various types of organisms and their biochemical reactions contribute to the recycling of water in an ecosystem. Discuss both biochemistry and ecology in your answer. Include in your answer at least one way in which human activity has an impact on this nutrient cycle. What are the main reservoirs of water in the biosphere?arrow_forward
- State whether the following is True or False of the process of eutrophication from the overuse of fertilizers. Group of answer choices Eutrophication often starts with stimulating algal growth [ Choose ] TRUE FALSE Eutrophication results in loss of dissolved oxygen from the process of photosynthesis [ Choose ] TRUE FALSE It is the decomposition of algae after algal blooms that lead to bacterial growth causing a loss of oxygen [ Choose ] TRUE FALSE Eutrophication is a natural process and can occur in the absence of fertilizers [ Choose ] TRUE FALSEarrow_forwardExplain the role of transpiration in water transportarrow_forwardWe have seen that energy is essential for life on earth. All organisms need energy to maintain their cellular processes. There are two basic ways of generating energy de novo, at the base of food webs. Describe the two primary ways that autotrophic organisms generate energy, including the original source of energy and the primary organisms that carry out each process.arrow_forward
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- Chapter 10 of your textbook describes four biogeochemical cycles (some of which might also be called nutrient cycles) which carry elements and compounds essential to life on earth: the oxygen cycle, the carbon cycle, the nitrogen cycle and the phosphorous cycle. Read the sections in the textbook and refer to the diagrams for each of the cycles.These cycles are constantly going on around us. Think about how we are involved in these cycles. What parts of the major biogeochemical cycles do we witness or experience in our daily lives? Give one example per post or response. Think about where the element or nutrient may have come from or where it may go next and whether the process may have been affected by humans and human activities.A simple example (using the hydrologic cycle, which we studied in Chapter 7): Yesterday I was at the beach and witnessed rain falling into the ocean. This is part of the hydrologic cycle. Most of the rainwater probably came from evaporation of water from the…arrow_forwardWhat form of energy is required for water to evaporate from the ocean to the atmospherearrow_forwardCarbon can be sequestered in the ocean in a variety of forms. Discuss the different forms, their biological sources, and how global warming will influence themarrow_forward
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