Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 7, Problem 2MCQ
An organism that can synthesize all its required organic components from CO2 using energy from the sun is a
- a. photoautotroph.
- b. photoheterotroph.
- c. chemoautotroph.
- d. chemoheterotroph.
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An organism that can synthesize all its required organic componentsfrom CO2 using energy from the sun is aa. photoautotroph
b. photoheterotroph
c. chemoautotroph
d. chemoheterotroph
Which of the following is not true about photoautotrophs?(a) They require CO2 and light.(b) They synthesize organic molecules from inorganicmolecules.(c) They are a subdivision of heterotrophs.(d) They are a subdivision of autotrophs.(e) All the above are true.
Heterotrophs that harvest energy from organic molecules are called
A.
photoautotrophs
B.
chemoautotrophs
C.
photohetrotrophs
D.
Chemoheterotrophs
E.
nitrogen fixers.
Chapter 7 Solutions
Microbiology: A Systems Approach
Ch. 7.1 - List the essential nutrients of a bacterial cell.Ch. 7.1 - Prob. 2AYPCh. 7.1 - List and define four different terms that describe...Ch. 7.1 - Define saprobe and parasite, and provide microbial...Ch. 7.1 - Prob. 5AYPCh. 7.1 - Identify the effects of isotonic, hypotonic, and...Ch. 7.1 - Name two types of passive transport and three...Ch. 7.2 - List and define five terms used to express a...Ch. 7.2 - Prob. 9AYPCh. 7.2 - Prob. 10AYP
Ch. 7.2 - Prob. 11AYPCh. 7.2 - Discuss characteristics of biofilms that...Ch. 7.3 - Summarize the steps of cell division used by most...Ch. 7.3 - Define doubling time and describe how it leads to...Ch. 7.3 - Compare and contrast the four phases of growth in...Ch. 7.3 - Prob. 16AYPCh. 7 - The source of the necessary elements of life is a....Ch. 7 - An organism that can synthesize all its required...Ch. 7 - Chemoautotrophs can survive on ______ alone. a....Ch. 7 - Prob. 4MCQCh. 7 - Prob. 5MCQCh. 7 - Prob. 6MCQCh. 7 - A cell exposed to a hypertonic environment will...Ch. 7 - Prob. 8MCQCh. 7 - Prob. 9MCQCh. 7 - In a viable plate count, each _____ represents a...Ch. 7 - Prob. 11TFCh. 7 - Prob. 12TFCh. 7 - Prob. 13TFCh. 7 - Prob. 14TFCh. 7 - A facultative anaerobe can grow with or without...Ch. 7 - Prob. 1CTQCh. 7 - Describe the process used by a saprobic microbe to...Ch. 7 - Prob. 3CTQCh. 7 - Explain what is happening to the bacterial...Ch. 7 - Prob. 5CTQCh. 7 - Prob. 1VCCh. 7 - Using the words that follow, please create a...
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- From where does a heterotroph directly obtain its energy? a. the sun b. the sun and eating other organisms c. eating other organisms d. simple chemicals in the environmentarrow_forwardC.B. van Niel is famous for his discoveries regarding photosynthesis in sulfur bacteria. Which of the following statements is true of his experiments? a. Van Niel found that oxygen created by plants is derived from water, not carbon dioxide b. He found that sulfur bacteria do not use light, but instead use hydrogen sulfide as a source of energy for producing sugars. c. Sulfur bacteria used water to produce hydrogen sulfide d. From his observations, he reasoned that all producers require a hydrogen source, but that source can vary. e. Both a) and d)arrow_forwardWhich of the following statements is a correct distinction between autotrophs and heterotrophs? a. Only heterotrophs require chemical compounds from the environment. b. Cellular respiration is unique to heterotrophs. c. Only heterotrophs have mitochondria. d. Only autotrophs can live on nutrients that are entirely inorganicarrow_forward
- In a dark cave, you discover a microscopic creature growing by stripping electrons from Cu+ (cuprous copper) and fixing atmospheric carbon. Your new pet, "Little Blue", is a: a) Chemoautotroph b) Chemoheterotroph c) Photoautotroph d) Photoheterotropharrow_forwardYou are growing algae in culture and expose them to CO2 that contains radiolabeled oxygen. Where does the radiolabeled oxygen end up after photosynthesis? a. water b. oxygen c. carbon dioxide d. carbohydrates e. carbon monoxidearrow_forwardorganism which take carbondioxide as a chemical source is known as Select one: a. photoautotrophs b. chemoautotrophs c. chemoheterotrophs d. photoheterotrophsarrow_forward
- Select the best answer describing the role of light in photosynthesis a.It is the source of respiration b.It is the source of carbon for the reaction c.It is the source of energy for the reaction d. all of thesearrow_forwardorganisms that use light energy as carbon source is known as Select one: a. chemoHeterotrophs b. photoheterotrophs c. photoautotrophs d. chemoautotrophsarrow_forwardA prokaryote that gains organic molecules from other livingorganisms is aa. photoautotroph.b. photoheterotroph.c. chemoautotroph.d. chemoheterotroph.arrow_forward
- Plantlike photosynthesis that releases O2 occurs in (A) cyanobacteria. (B) archaea. (C) gram-positive bacteria. (D) chemoautotrophic bacteria.arrow_forwardWhich one of the following is related to ozone formation? (A) Photosynthesis process (B) Photochemical process (C) Chemosynthesis process (D) Hydrolysis processarrow_forwardWhat process is being represented by the image? A) Photosynthesis B) Respiration C)Anaerobic respiration D)Breathingarrow_forward
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