Pearson eText Bauman Microbiology with Diseases by Body Systems -- Instant Access (Pearson+)
5th Edition
ISBN: 9780135891018
Author: ROBERT BAUMAN
Publisher: PEARSON+
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Chapter 26, Problem 5MC
Summary Introduction
Introduction:
The basic element of every organic chemical is the carbon atom. The inorganic carbon atom is transformed into an organic compound by autotrophs. Autotrophs are organisms that are able to synthesize their own food from light or inorganic chemicals. The Calvin-Benson cycle (endergonic) needs a great deal of energy. Life on the Earth is reliant on Calvin-Benson cycle for the fixation of the carbon atom. This cycle happens in the photosynthetic bacteria (cytoplasm) or in the eukaryotes (chloroplasts).
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Photosynthetic organisms are ______.
producers that make all of their organic matter from organic molecules that they take in
consumers that obtain organic molecules from other living organisms
decomposers that obtain nutrients from the soil
producers that make all their own organic matter from inorganic molecules
33. Increase in the population of photosynthetic bacteria using the oxygen-releasing pathway led to an
increase in the oxygen levels in the seas and air. What was (were) the major consequence(s) of that
change?
I.
aerobic respiration became the major mode of life
II.
all anaerobic organisms went extinct
III.
formation of ozone layer
a.
I only
b. II only
c.
I and II
d.
I and III
n
2"
c.
I, II, and III
will be in
1. Question 1 is based on Figure 1 below.
Sunlight
co2 in the
atmosphere
Photosynthesis
by producers
Plant
respiration
Animal
respiration
Carbon fixation
by consumers
Fossils and fossil fuels
Figure 1. Carbon cycle.
a) Name the process in "a" and any TWO (2) of the organisms involved.
b) Briefly explain how does the proses in "a" contribute to the carbon cycle.
c) How does "b" affect the environment in a negative way?
Chapter 26 Solutions
Pearson eText Bauman Microbiology with Diseases by Body Systems -- Instant Access (Pearson+)
Ch. 26 - A blogger stated that germs (microorganisms) are...Ch. 26 - Compare human, animal, and plant pathogens that...Ch. 26 - Bioterrorism in the Mail? Of course, John had had...Ch. 26 - A microbiome is composed of _____. a. single, pure...Ch. 26 - Prob. 2MCCh. 26 - In the environment, nutrients are generally _____....Ch. 26 - Prob. 4MCCh. 26 - Prob. 5MCCh. 26 - Nitrification converts _____. a. organic nitrogen...Ch. 26 - Prob. 7MC
Ch. 26 - Which of the following diseases is not caused by...Ch. 26 - Of the following characteristics, which would...Ch. 26 - Anammox reactions are ____. a. anaerobic and pan...Ch. 26 - Modified True/False 1. _____ Biofilms of...Ch. 26 - Prob. 2MTFCh. 26 - Modified True/False 3. __________ Aquatic...Ch. 26 - Prob. 4MTFCh. 26 - Prob. 5MTFCh. 26 - Fill in the Blanks 1. Leaching of compounds from...Ch. 26 - Prob. 2FIBCh. 26 - Prob. 3FIBCh. 26 - Prob. 4FIBCh. 26 - Prob. 5FIBCh. 26 - Prob. 1VICh. 26 - Prob. 2VICh. 26 - Prob. 1CTCh. 26 - Microbes are found mostly in topsoil, but some are...Ch. 26 - Prob. 3CTCh. 26 - Prob. 4CTCh. 26 - Prob. 5CTCh. 26 - Using the following terms, fill in the following...
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- 1. Oxidation is a favorable process in an aerobic environment, which is the reason cells are able to derive energy from the oxidation of macromolecules. Once carbon has been oxidized to __________, its most stable form, it can only cycle back into the organic portion of the carbon cycle through __________. a. CH3, combustion b. CO, reduction c. CO2, respiration d. CO2, photosynthesis 2. The ultimate source of energy in our planet is sunlight. In the first stage of photosynthesis, light energy is captured in chlorophyll-containing reaction centers (PSII and PSI). What is the first step in the capture of light energy at PSII? a. The energy carriers ATP and NADPH + H+ are synthesized. b. CO2 reacts with the C5 sugar ribulose-1,5-bis-phosphate in the first step of the Calvin cycle. c. Starch is synthesized. d. H2O is photolyzed and its electrons are captured by special chlorophyll molecules. e. Sucrose is synthesized from glucose and fructose.arrow_forwardWhat microbes is highest in agricultural lands? A. Aerobic nitrogen fixing bacteria B. Anaerobic nitrogen fixing bacteria C. Aerobic heterotrophic bacteria D. Anaerobic heterotrophic bacteriarrow_forwardWhich of the following processes is/are used to fix atmospheric N2? a.bacterial action b.Haber process c.lightning d.transaminationarrow_forward
- 1. Which of the following is most likely to result in "immobilization"? A. Assimilation B. Ammonification C. Sulfur oxidation D. Mineralization E . Denitrification 2. What metabolic type in the carbon cycle would most likely benefit from living in the presence of a starch-digesting microbe in an anaerobic environment? A Sugar fermenter: B. Methanogen C. Carbon fixer D. Methane oxidizer E CO reducer 3. Which two of the following choices are the goals of pasteurization? A Kill all spoilage microbes B. Sterilize C. Kill all pathogens D. Reduce spollage microbes E. Reduce pathogen numbersarrow_forwardWhat genus of bacteria transforms ammonia to nitrite in the Nitrogen cycle? A. Nitrobacter B. Nitrosomonas C. detritus D. Legumesarrow_forwardMatch the process with the earth spheres involved. photosynthesis on land biosphere to atmosphere weathering of rocks and runoff of soil into biosphere to hydrosphere streams photosynthesis in ocean atmosphere to biosphere combustion of fossil fuels disolved CO, in hydrosphere to biosphere cellular respiration in ocean geosphere to atmosphere Cellular respiration on land geosphere to hydrosphere 10 étv MacBook Air DII DD F2 F3 F4 F6 F7 F8 F9 F10 #3 $ % & 3 4 7 8 9 E Y D G H K Rarrow_forward
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