EBK BIOLOGY
11th Edition
ISBN: 8220101472069
Author: Byers
Publisher: PEARSON
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Textbook Question
Chapter 29, Problem 3MC
Denitrifying bacteria
convert ammonia to nitrate
convert nitrate to ammonia
convert N2 to ammonia.
convert nitrate to N2.
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Dissimilatory nitrate reduction carried out by bacteria can lead to loss of nitrogen as N, from the environment.
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Chapter 29 Solutions
EBK BIOLOGY
Ch. 29 -
1. Which trophic level(s) must be present to...Ch. 29 - Prob. 2MCCh. 29 - Denitrifying bacteria convert ammonia to nitrate...Ch. 29 -
4. Net primary production per unit area is likely...Ch. 29 - The effect of CO2 emissions from burning fossil...Ch. 29 -
1. Nearly all life gets its energy from _______...Ch. 29 -
2. Photosynthetic organisms are called either...Ch. 29 -
3. Feeding levels within ecosystems are also...Ch. 29 - In general, only about ______ percent of the...Ch. 29 - Prob. 5FTB
Ch. 29 -
6. During the nitrogen cycle, nitrogen gas is...Ch. 29 - Prob. 7FTBCh. 29 - Prob. 1RQCh. 29 -
2. What is a producer? What trophic level does it...Ch. 29 - 3. Define net primary production. Would you...Ch. 29 - Name the first three trophic levels. Among the...Ch. 29 - How do food chains and food webs differ? Which is...Ch. 29 - Define detritivore and decomposer and explain...Ch. 29 -
7. Trace the movement of carbon from one of its...Ch. 29 - Prob. 8RQCh. 29 - Trace a pathway of a phosphorus molecule from a...Ch. 29 -
1. Humans are omnivores who can feed on several...Ch. 29 - Discuss the contribution of human population...
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- Why is algae being grown in wastewaterarrow_forwardExaplain the biodegradation of nitrates. Provide a chemical formula to show this processarrow_forwardWhich of the following is most likely to be used for sewage treatment? View Available Hint(s) for Part D Acidophiles Methanogens Halophiles Hyperthermophilesarrow_forward
- Which of the following microbes grow best below 20 degrees C? thermophiles mesophiles hyperthermophiles psychrophilesarrow_forwardMicrobes that can survive and thrive in extreme environments are called extremophiles. In this context, what term is the most accurate to describe the microbes that can grow in salty wastewater? Acidophiles Psychrophiles Thermophiles O Halophilesarrow_forwardHow does primary sludge differ from activated sludge? What type of changes in the sludge are carried out in anaerobic sludge digester? Give the composition of biogas produced in the sewage treatment plant.arrow_forward
- Which of the following terms is NOT used to describe microbes thrive in different temperature ranges? Thermophiles Psychrophiles O Mesophiles O Halophilesarrow_forwardA given municipal wastewater can be treated with the following methods. N + AS, Activated sludge with pre-denitrificationAS + N Activated sludge with post-denitrificationor UCT (Biological Phosphorus Purification designed at the University of Cape Town) Which process needs the greatest addition of lime? (choose the right answer) AS + N N + AS UCT Everyone needs the same amount of additivesarrow_forwardIf you are working at a sewage treatment plant, which microbial process(es) would you use to reduce nitrates in sewage before releasing into rivers? Why? denitrification; to reduce occurrence of HAB's nitrification; to make water richer in fertilizers when used by farmers nitroge fixiation; to increase dissolved oxygen in river water nitirification to convert nitrates to unusable nitrites; to increase algal growth in waterarrow_forward
- Why are coliforms selected as the indicator of water potability?arrow_forwardIdentify, by metabolic type, microorganisms responsible for dissimilatory nitrate, sulfate, and iron reduction; nitrification; and sulfur and iron oxidationarrow_forwardhousehold contaminated wastewater purificationarrow_forward
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