Textbook Question
Endospores ___________ .
a. are reproductive structures of some bacteria
b. occur in some archaea
c. can cause shock, fever, and inflammation
d. are dormant, resistant cells
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Ch. 3 - Cell Structure and Function
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302
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Table of contents
- Ch. 1 - A Brief History of Microbiology31
- Ch. 2 - The Chemistry of Microbiology28
- Ch. 3 - Cell Structure and Function39
- Ch. 4 - Microscopy, Staining, and Classification25
- Ch. 5 - Microbial Metabolism51
- Ch. 6 - Microbial Nutrition and Growth37
- Ch. 7 - Microbial Genetics51
- Ch. 8 - Recombinant DNA Technology21
- Ch. 9 - Controlling Microbial Growth in the Environment36
- Ch. 10 - Controlling Microbial Growth in the Body: Antimicrobial Drugs21
- Ch. 11 - Characterizing and Classifying Prokaryotes29
- Ch. 12 - Characterizing and Classifying Eukaryotes34
- Ch. 13 - Characterizing and Classifying Viruses, Viroids, and Prions23
- Ch. 14 - Infection, Infectious Diseases, and Epidemiology35
- Ch. 15 - Innate Immunity34
- Ch. 16 - Adaptive Immunity21
- Ch. 17 - Immunization and Immune Testing29
- Ch. 18 - Immune Disorders22
- Ch. 19 - Pathogenic Gram-Positive Bacteria25
- Ch. 20 - Pathogenic Gram-Negative Cocci and Bacilli28
- Ch. 21 - Rickettsias, Chlamydias, Spirochetes, and Vibrios25
- Ch. 22 - Pathogenic Fungi47
- Ch. 23 - Parasitic Protozoa, Helminths, and Arthropod Vectors44
- Ch. 24 - Pathogenic DNA Viruses23
- Ch. 25 - Pathogenic RNA Viruses30
- Ch. 26 - Applied and Industrial Microbiology29
- Ch. 27 - Microbial Ecology and Microbiomes22
Bauman6th EditionMicrobiology with Diseases by TaxonomyISBN: 9780134832302Not the one you use?Change textbook
Chapter 3, Problem 14
Inclusions have been found to contain ___________ .
a. DNA
b. sulfur globules
c. dipicolinic acid
d. tubulin
Verified step by step guidance1
Step 1: Understand what inclusions are in microbiology. Inclusions are reserve deposits found within the cytoplasm of prokaryotic cells, often serving as storage sites for nutrients or other substances.
Step 2: Review the options given: (a) DNA, (b) sulfur globules, (c) dipicolinic acid, and (d) tubulin. Consider which of these substances are typically stored or found as inclusions in bacterial cells.
Step 3: Recall that DNA is generally found in the nucleoid region, not as inclusions. Tubulin is a eukaryotic cytoskeletal protein, not found in prokaryotic inclusions.
Step 4: Recognize that dipicolinic acid is a component of bacterial endospores, not inclusions. Sulfur globules, however, are known to be stored as inclusions in some bacteria, serving as an energy reserve.
Step 5: Conclude that inclusions have been found to contain sulfur globules, making option (b) the correct choice.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Bacterial Inclusions
Inclusions are reserve deposits found within bacterial cytoplasm that store nutrients or other substances. They serve as energy reserves or structural components, varying in composition depending on the bacterial species and environmental conditions.
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Cell Inclusions
Sulfur Globules as Inclusions
Sulfur globules are a type of inclusion found in some bacteria, especially sulfur-oxidizing species. These globules store elemental sulfur, which bacteria can use as an energy source during metabolism.
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Dipicolinic Acid and Endospores
Dipicolinic acid is a chemical found primarily in bacterial endospores, not inclusions. It helps stabilize the spore's DNA and proteins, contributing to spore resistance but is not stored in cytoplasmic inclusions.
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Related Practice
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What is the function of glycocalyces and fimbriae in forming a biofilm?
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What factors may prevent a molecule from moving across a cell membrane?
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Compare and contrast three types of passive transport across a cell membrane.
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Contrast the following active processes for transporting materials into or out of a cell: active transport, group translocation, endocytosis, exocytosis.
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Textbook Question
Dipicolinic acid is an important component of __________ .
a. Gram-positive archaeal walls
b. cytoplasmic membranes in eukaryotes
c. endospores
d. Golgi bodies
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