Microbiology with Diseases by Body System (4th Edition)
4th Edition
ISBN: 9780321918550
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 3, Problem 2TMW
In 1985, an Israeli scientist discovered the single-celled microbe Epulopiscium fishelsoni. This organism is visible with the naked eye. Why did the scientist initially think Epulopiscium was eukaryotic?
What discovery revealed that the microbe is really a giant bacterium?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
It is 0.4 um in length, but that is all you know. What could you do to determine if this microbe was a bacteria or an archaea?
A scientist isolates a new species of prokaryote. He notes that the specimen is a bacillus with a lipid bilayer and cell wall that stains positive for peptidoglycan. Its circular chromosome replicates from a single origin of replication. Is the specimen most likely an Archaea, a Gram-positive bacterium, or a Gram-negative bacterium? How do you know?
Endospores are
a) resistant to extreme temperatures
b) produced by some prokaryotes
c) can survive for decades
d) all of the above
Chapter 3 Solutions
Microbiology with Diseases by Body System (4th Edition)
Ch. 3 - Prob. 1TMWCh. 3 - In 1985, an Israeli scientist discovered the...Ch. 3 - Why is a pilus a type of fimbria, but a flagellum...Ch. 3 - Why is the microbe illustrated in Figure 3.2 more...Ch. 3 - When the bacterium Escherichia coli is grown in a...Ch. 3 - Prob. 6TMWCh. 3 - Why do scientists consider bacterial and archaeal...Ch. 3 - Why did scientists in the 19th and early 20th...Ch. 3 - Why do some scientists consider archaea, which are...Ch. 3 - Why are eukaryotic glycocalyces covalently bound...
Ch. 3 - Many antimicrobial drugs target bacterial cell...Ch. 3 - Colchicine is a drug that inhibits microtubule...Ch. 3 - A cell may allow a large or charged chemical to...Ch. 3 - Which of the following statements concerning...Ch. 3 - A 9 + 2 arrangement of microtubules is seen in...Ch. 3 - Which of the following is most associated with...Ch. 3 - Which of the following is not associated with...Ch. 3 - Which of the following is true of Svedbergs? a....Ch. 3 - Which of the following statements is true? a. The...Ch. 3 - Prob. 8MCCh. 3 - Bacterial flagella are ______________. a. anchored...Ch. 3 - Prob. 10MCCh. 3 - A Gram-negative cell is moving uric acid across...Ch. 3 - Gram-positive bacteria _______________. a. have a...Ch. 3 - Endospores ________________. a. are reproductive...Ch. 3 - Prob. 14MCCh. 3 - Dipicolinic acid is an important component of...Ch. 3 - Match the structures on the left with the...Ch. 3 - Match the term on the left with its description on...Ch. 3 - Label the structures of the following prokaryotic...Ch. 3 - Label each type of flagellar arrangement.Ch. 3 - A scientist who is studying passive movement of...Ch. 3 - Describe (or draw) an example of diffusion down a...Ch. 3 - Sketch, name, and describe three flagellar...Ch. 3 - Prob. 3SACh. 3 - The term fluid mosaic has been used in describing...Ch. 3 - A local newspaper writer has contacted you, an...Ch. 3 - Prob. 6SACh. 3 - Compare bacterial cells and algal cells, giving at...Ch. 3 - Contrast a cell of Streptococcus pyogenes (a...Ch. 3 - Differentiate among pili, fimbriae, and cilia,...Ch. 3 - Prob. 10SACh. 3 - Prob. 11SACh. 3 - Prob. 12SACh. 3 - What is the function of glycocalyces and fimbriae...Ch. 3 - Prob. 14SACh. 3 - Compare and contrast three types of passive...Ch. 3 - Prob. 16SACh. 3 - Prob. 17SACh. 3 - Prob. 18SACh. 3 - Prob. 1CTCh. 3 - Methylene blue binds to DNA. What structures in a...Ch. 3 - Prob. 3CTCh. 3 - Prob. 4CTCh. 3 - A researcher carefully inserts an electrode into...Ch. 3 - Prob. 6CTCh. 3 - An electron micrograph of a newly discovered cell...Ch. 3 - An entry in a recent scientific journal reports...Ch. 3 - Prob. 9CTCh. 3 - Prob. 10CTCh. 3 - Prob. 11CTCh. 3 - Prob. 12CTCh. 3 - Prob. 13CTCh. 3 - Prob. 14CTCh. 3 - Using the following terms, fill in the following...
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
- When do we make the determination that a bacterium is Gram positive? A) Safranin washes the crystal violet die out of the cell wall. B) Crystal violet die is not able to absorb into the cell wall. C) Alcohol does not wash the crystal violet die out of the cell wall. D) Crystal violet turns the bacterium a yellow color.arrow_forwardI am doing my microbiology homework and I need help with these questions: 1) List the structures ALL bacteria possess. 2) Identify three structures SOME but not all bacteria possess. 5) Describe the structure and function of three different structures found outside of the bacterial cytoplasmic membrane. 6) Differentiate between the two main types of bacterial envelope structures. 7) Why are Gram-positive cell walls stronger than Gram-negative cell walls? 8) Name a substance in the envelope of SOME bacteria that can cause severe symptoms in humans. 9) Describe the causes of sporogenesis and germination 10) Compare and contrast the major features of archaea, bacteria and eukaryotes by completing the table below. Characteristic Bacteria Archaea Eukarya Chromosome Type of Ribosomes Protein Synthesis Similar to Eukarya Sterols In Membrane Membrane-bound Organelles Peptidoglycan in Cell wallarrow_forward1) A newly discovered unicellular organism isolated from acidic mine drainage is found to contain a cell wall, a plasma membrane, two flagella, and peroxisomes. Based just on this information, the organism is most likely, A) a nonmotile prokaryote B) a motile bacterium C) a motile archaea D) a nonmotile eukaryote E) a motile eukaryotearrow_forward
- 13) What is the purpose of a bacterium's cell wall? A) It provides direct protection from antibiotics. B) It prevents sunlight from destroying the cell's DNA. C) It prevents water from diffusing into the cell. D) Bacteria do not have a cell wall.arrow_forwardMicrobiologists announced the discovery of over 30 new species of bacteria that thrivebetween the teeth and gums of humans. The bacteria could not be grown in the researchers’ laboratories,nor were any of them ever observed via any kind of microscopy. If they couldn’t culture them or see them,how could the researchers know they had discovered new species? If they couldn’t examine the cells for thepresence of a nucleus, how did they determine that the organisms were prokaryotes and not eukaryotes?arrow_forward14) A streptobacillus shaped bacteria have the following shape/sructure: a) long chain of capsule/rodshaped cells b) long chain of spherical-shaped cells c) a single spherical-shaped cell d) a single capsule/rod-shaped cell e) none of the above.15) If you are a passenger on the “Magic School Bus” and you want to “explore” the cytoplasmic component of a Gram -ve bacteria, you will have to go through: a) two membranes separated by periplasm and thick peptidoglycan region b) two membranes separated by periplasm and thin peptidoglycan region c) A glycocalyx and a membrane separated by a thin peptidoglycan region d) a thin peptidoglycan region & one membrane e) a thick peptidoglycan region & one membrane 16) If you are a passenger on the “Magic School Bus” and you want to “explore” the cytoplasmic component of a Gram +ve bacteria, you will have to go through: a) two membranes separated by periplasm and thick peptidoglycan region b) two membranes separated by periplasm and thin…arrow_forward
- 1) What cell would a metabolically active form of prokaryotes?? a) living b) vegetative c) active d) sporulative e) cystic 2) Categroize the "possible answers descriptions (which are attributes and classifications)" in the image to the bacteria:arrow_forward1.) Your roommate has noticed that you now spend most of your time studying microbiology and has become curious about the subject. She asks you to explain in the simplest possible way how prokaryotes differ from eukaryotes. What do you tell her? 2.) In the advent of COVID-19, what physical method and chemical agent do you think is the most effective method in controlling the spread of the disease? Justify your answer.arrow_forwardWhy is E. coli O157:H7 an organism of concern in contaminated foods? The strain is represented as O157:H7. Which particular “parts” of the bacterial cell do the “O” and “H” refer to?arrow_forward
- 35) Researchers have found a new type of bacteria, and they want to determine its phylum. What would be the most reliable method to do so? A) Conducting a Gram-stain test B) Performing an analysis of metabolic pathways C) Determining the ribosomal RNA sequence of the bacteria D) Analyzing the morphological characteristics of the bacteriaarrow_forwardYou have discovered a new coccoid-shaped microorganism with no nucleus, a rigid cell wall, and a diameter of 2 μm. Chemical tests reveal that its cell wall does NOT contain peptidoglycan. The new microorganism is A) most likely a bacterium. B) most likely a eukaryote. C) most likely an archaeon. D) either a bacterium or an archaeon.arrow_forwardMost bacteria require a water activity of 0.9 or higher to grow. A prolonged period of being dry usually causes loss of viability. How were there still living bacteria in many of the dried foods such as dried rice, dehydrated coconut flakes, raisins, etc.? Discuss.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Archaea; Author: Bozeman Science;https://www.youtube.com/watch?v=W25nI9kpxtU;License: Standard youtube license