PRESCOTTS GENERAL MICROBIOLOGY
11th Edition
ISBN: 9781307412420
Author: WILLEY
Publisher: MCG/CREATE
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 20, Problem 2AL
Summary Introduction
Archaea can be categorized into six groups based on morphological and physiological differences. However, Bergey’s manual of systemic bacteriology, a taxonomic organization divides archaea into two phyla Crenarchaeota and Euryarchaeota. There are three types of carbon fixation that have been characterized in archaea. This includes the reductive acetyl-CoA pathway, dicarboxylate/4-hydroxybutyrate cycle (DC/HB), and the 3-hydroxypropionate/4-hydroxybutyrate cycle (HP/HB). The dicarboxylate/4-hydroxybutyrate cycle (DC/HB) is an autotrophic pathway, which occurs commonly occurs in two Crenarchaeota family includes, Desulfurococcales and Thermoproteales.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Explain why C4 photosynthesis is advantageous in hot, dryconditions
Explain why the statement is true.
Photosynthesis is hypothesized to have been made possible by the appearance of chlorophyll associated with the mesozones of the cyanobacterial
Nitrosomonas is a photophobic (light-avoiding) chemoautotrophic bacterium that converts ammonia into nitrite. Explain how the organism can fix CO2 via the Calvin cycle in the absence of sunlight.
Chapter 20 Solutions
PRESCOTTS GENERAL MICROBIOLOGY
Ch. 20.1 - MICRO INQUIRY Given that the DC/HB pathway uses...Ch. 20.1 - Prob. 2MICh. 20.1 - Prob. 1CCCh. 20.1 - Why do methanogens use the reductive acetyl-CoA...Ch. 20.1 - Prob. 3CCCh. 20.1 - Compare the ATP and NADH yield of each of the...Ch. 20.2 - MICRO INQUIRY Identify the potential electron...Ch. 20.2 - Retrieve, Infer, Apply What are thermoacidophiles...Ch. 20.2 - Prob. 2CCCh. 20.2 - Compare the carbon and sulfur metabolism of...
Ch. 20.2 - Prob. 4CCCh. 20.2 - Prob. 5CCCh. 20.3 - MICRO INQUIRY What are the mechanisms by which...Ch. 20.3 - Retrieve, Infer, Apply Why are the growth yields...Ch. 20.3 - Prob. 2CCCh. 20.3 - What is the ecological and practical importance of...Ch. 20.3 - Where are extreme halophiles found, and what is...Ch. 20.3 - What is the difference between sensory rhodopsin...Ch. 20.3 - How is Thermoplasma able to live in acidic, very...Ch. 20.3 - In what way are members of the genus Archaeoglobus...Ch. 20 - Prob. 1RCCh. 20 - Prob. 2RCCh. 20 - Prob. 3RCCh. 20 - Prob. 4RCCh. 20 - Prob. 5RCCh. 20 - Prob. 6RCCh. 20 - Prob. 7RCCh. 20 - Some believe that archaea should not be separate...Ch. 20 - Prob. 2ALCh. 20 - Prob. 3ALCh. 20 - Prob. 4ALCh. 20 - Prob. 5ALCh. 20 - Prob. 6ALCh. 20 - Prob. 7AL
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following substances does not participate in the Calvin-Benson cycle? a. ATP c. NADPH e. PGAL b. O2 d. RuBP f. CO2arrow_forwardThe Calvin-Benson cycle starts with _______. a. the absorption of photon energy b. carbon fixation c. the release of electrons from photosystem II d. NADP+ formationarrow_forwardIdentifying carboxysomes in a bacterium suggests that this bacterium is using the Calvin cycle to convert the concentrated CO2 into biomass.arrow_forward
- Which of the following is CORRECT about the movement of e- in photosynthesis? A. H20 → Pheo → PQ → Fd → NADH B. H20 → PQ → Fd → PC → NADH C. H20 → b6-f → PQ → Pheo → NADH D. H20 → Pheo → PC → b6-f → NADHarrow_forwardContrast autotrophy in the following phototrophs:cyanobacteria; purple and green sulfur bacteria; Chloroflexus.arrow_forwardGenerally, increasing the concentration of carbon dioxide increases the rate of photosynthesis. What conditions could prevent this effect?arrow_forward
- Compare photolithoautotrophy with chemolithoautotrophy. Do you think it is possible for an ecosystem to exist solely on the organic carbon generated by chemolithotrophy (i.e., without any contribution by photosynthetic organisms)? Explain your reasoning.arrow_forwardContrast the processes of C3, C4, and CAM photosynthesisarrow_forwardThe Calvin–Benson cycle starts with_____ . a. the absorption of photon energy b. carbon fixation c. the release of electrons from photosystem II d. NADP+ formationarrow_forward
- Why can photosynthesis be generally considered as a redox process? 3-6 snetencesarrow_forwardDuring his flight, Ikaris detected microorganism X in the abyssal zone of the Indian Ocean. X fixes atmospheric carbon dioxide via the Calvin cycle, and oxidised inorganic compounds as electron donors. X is most likely a a. Chemolithoautotroph b. Photolithoautotroph c. Photoorganoheterotrophs d. Chemoorganoautotropharrow_forwardIn oxygenic photophosphorylation (a) photosystem II uses the photopigment bacteriochlorophyll (b) Oxygen is used as an electron donor (c) ATP is produced by means of substrate level phosphorylation (d) photosystem I reduces NADP (e) none of the abovearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage Learning
Biochemistry
Biochemistry
ISBN:9781305577206
Author:Reginald H. Garrett, Charles M. Grisham
Publisher:Cengage Learning
Photosynthesis & Respiration | Reactions | Chemistry | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=3XIyweZg6Sw;License: Standard YouTube License, CC-BY