Biology: The Unity and Diversity of Life
15th Edition
ISBN: 9780357093795
Author: STARR
Publisher: CENGAGE LEARNING (CUSTOM)
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Chapter 20, Problem 7SQ
Summary Introduction
Introduction: Cyanobacteria (blue-green algae) are one of the most primordial bacteria on earth. They generate oxygen throughout photosynthetic reaction. They can utilize the carbon dioxide present in the water and photosynthetically make their own food by releasing oxygen into the environment.
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Chapter 20 Solutions
Biology: The Unity and Diversity of Life
Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - Bacteriophage-Inspired Antibiotics Although...Ch. 20 - The genome of ___ can be either RNA or DNA. a. a...Ch. 20 - The capsid of a virion consists of ___ . a. DNA b....Ch. 20 - Bacteriophages kill their host quickly by ______ ....Ch. 20 - The genetic material of HIV (a retrovirus) is...Ch. 20 - Prob. 5SQCh. 20 - Prob. 6SQCh. 20 - Prob. 7SQ
Ch. 20 - Bacteria that serve as decomposers are ___ . a....Ch. 20 - Prob. 9SQCh. 20 - Formation of a(n) ___ allows some soil bacteria to...Ch. 20 - _____ in the stomach of a cow release methane. a....Ch. 20 - A plasmid is a circle of ___ . a. RNA b. DNA c....Ch. 20 - Prob. 13SQCh. 20 - Prob. 14SQCh. 20 - Prob. 15SQCh. 20 - Prob. 1CTCh. 20 - Adenoviruses that cause colds do not have a lipid...Ch. 20 - The antibiotic penicillin acts by interfering with...Ch. 20 - Raw red alga of the genus Porphyra is part of a...
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- The yeasts whose fermentation activity produces thecarbon dioxide that makes bread rise are a .a. chytrid c. sac fungusb. zygote fungus d. club fungusarrow_forwardCyanobacteria harness energy from the sun through photosynthesis, and oxidize water to provide electrons for energy generation. Thus, we classify cyanobacteria as _________. a. photolithotrophs b. photoautotrophs c. chemolithoautotrophs d. chemo-organotrophsarrow_forwardTo which of the following is the photosynthetic bacterium Chormatium most closely related? Explain why. a. cyanobacteria b. Chloroflexus c. Escherichiaarrow_forward
- Which of the following oxygenic phototrophs are believed to have generate the majority of oxygen gas in Earth’s atmosphere? a. Chlorobium b. Chloroflexus c. Clostridium d. Cyanobacteria e. purple bacteriaarrow_forwardWhich microbe is NOT found present in water with eutrophication events(s)? A. Nitromonas sp. B. Bacteroides sp. C. Anabaena sp. D. Cyanobacteriaarrow_forwardFill in the table with correct answers.arrow_forward
- _______ are oxygen-releasing photoautotrophs. a. Spirochetes c. Cyanobacteria b. Methanogens d. Bacteriophagesarrow_forwardProkaryotes that obtain their energy from chemical compounds are called _____. a. photorophs b. auxotrophs c. chemorophs d. lithotrophsarrow_forward4) Which statements about mycotoxins is not true? a. They are toxic molecules made by mold b. [Fungi don't need mycotoxins for their survival c. Small quantities are toxic to humans High heat cooking destroys them d. e. About 25% of world crops affectedarrow_forward
- Recently, a microbe that is able to digest cellulose was discovered in a hot spring with an average temperature of 95°C. This microbe most likely belongs to which of the following groups? A. Archaea B. Proteobacteria C. Cyanobacteria D. Spirochetesarrow_forwardA fungi that improves the fight against PTB was isolated from the fungus-infected ___: a. chickens b. bovines c. hogs d. dogs *This is a multiple choice type of questionarrow_forwardWhich microorganism does not contain superoxide dismutase enzymes? O A. Plesiomonas shigelloides O B. Escherichia coli O C. Yersinia pestis D. Lactobacillus plantarum O E. Streptomyces griseusarrow_forward
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