Microbiology: Principles and Explorations
9th Edition
ISBN: 9781118743164
Author: Jacquelyn G. Black, Laura J. Black
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 1, Problem 3SQ
Which of the following is not true?
- (a) A single bacterium weighs approximately 1 × 10−11 grams.
- (b) On average there are 100 trillion microorganisms on any given human.
- (c) Microbes can only be found where people live.
- (d) There are more microbes in your mouth than all the people who have lived in the history of man.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
a) bacteria are “obligate anaerobes.” What does this mean? On Earth, where might these organisms live? (Give examples.)
b) Humans (and most Eukaryotic organisms) are obligate aerobes. What does this mean? On Earth, where might these organisms live? (Give examples.)
5) A pure culture A) is sterile . B) is a population of identical cells. C) is made of a clearly defined chemical medium. D) contains one microbial cell.
9) Identify most mistaken (wrong) choice:
a) Bioremediation is the process by which microorganisms can be used to clean
up toxic wastes.
Ob) Some bacteria can survive very low temperatures.
c) Both prokaryotes and eukaryotes have ways of protecting themselves against
free radicals.
d) Viruses can easily replicate in chemically defined media
Chapter 1 Solutions
Microbiology: Principles and Explorations
Ch. 1 - List three reasons to study microbiology.Ch. 1 - What is the difference between microbiology and...Ch. 1 - Prob. 1.3SCCh. 1 - List five bacterial diseases and five viral...Ch. 1 - Prob. 2.1SCCh. 1 - State the germ theory of disease. Try to think of...Ch. 1 - How did Pasteurs experiment with swan-necked...Ch. 1 - Why was the French microbiologists method of broth...Ch. 1 - What were the scientific contributions of Jenner,...Ch. 1 - Prob. 3.2SC
Ch. 1 - What is the Human Genome Project? How has...Ch. 1 - Prob. 1CCSCh. 1 - Prob. 1CTQCh. 1 - Can you think of some reasons why it might be hard...Ch. 1 - As often happens in science, one observation or...Ch. 1 - It is likely that others beside Anton van...Ch. 1 - The completion of chromosomal mapping and...Ch. 1 - Prob. 6CTQCh. 1 - Prob. 1SQCh. 1 - Conclusive evidence of thriving microbial life has...Ch. 1 - Which of the following is not true? (a) A single...Ch. 1 - Which is false regarding Archaea? (a) They lack a...Ch. 1 - Why are microbes important to study and how are...Ch. 1 - Prob. 6SQCh. 1 - Prob. 7SQCh. 1 - Animals such as worms and ticks are too large to...Ch. 1 - Prob. 9SQCh. 1 - Prob. 10SQCh. 1 - What triggered the development and establishment...Ch. 1 - Prob. 12SQCh. 1 - Prob. 13SQCh. 1 - The biggest obstacle in the acceptance and...Ch. 1 - Match the following terms to the appropriate...Ch. 1 - Prob. 16SQCh. 1 - Prob. 17SQCh. 1 - Prob. 18SQCh. 1 - Describe the contributions of the following...Ch. 1 - Prob. 20SQCh. 1 - Prob. 21SQCh. 1 - Prob. 22SQ
Additional Science Textbook Solutions
Find more solutions based on key concepts
1. The correct sequence of levels forming the structural hierarchy is
A. (a) organ, organ system, cellular, che...
Human Anatomy & Physiology (11th Edition)
How do food chains and food webs differ? Which is the more accurate representation of feeding relationships in ...
Biology: Life on Earth (11th Edition)
Why is it necessary to be in a pressurized cabin when flying at 30,000 feet?
Anatomy & Physiology (6th Edition)
Why are mutants used as test organisms in the Ames test?
Laboratory Experiments in Microbiology (11th Edition)
What may happen if the input of a mineral nutrient into an ecosystem is less than the output of that element fr...
Study Guide for Campbell Biology
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
- The average bacterium is approximately __ µm in diameter and a typical Eukaryotic nucleus is approximately __ µm in diameter. a) 1; 320 b) 1; 5 c) 10; 2 d) 1; 1 e) 5; 10arrow_forwardMicroorganisms have been described as the most chemically diverse, the most adaptable, and the most ubiquitous organisms on Earth. What other "most" descriptions could be added to this list?arrow_forwardWhich of the following is the most resistant to destruction bychemicals and heat?a) Bacterial endosporesb) Fungal sporesc) Mycobacterium tuberculosisd) E. colie) HIVarrow_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_forward1.Most human bacterial pathogens are labeled as __ according to their temperature requirement: a) Aerophiles b) Aerobes c) Anaerobes d) Psychrophiles e) Mesophiles.2) The current model that describes the contents of the plasma membrane is best described as _______ model: a) Sandwich b) fluid-mosaic c) unit membrane d) ions and pumps e) semipermeable3) Bacterial cells that do not have the SOD & catalase enzymes are labeled as: a) Aerophiles b) Aerobes c) Anaerobes d) Complex e) Mesophiles.arrow_forwardWhich statement among A-D is false regarding physical and chemical agents of control? A) O Effective killing of bacteria via irradiation with UV light would likely take longer than if irradiated with gamma rays or x-rays. B) O Detergent-type disinfectants exert their effect by solubilizing membranes. C) O Antiseptics are generally not as strongly concentrated as disinfectants D) O Sterilization and pasteurization are equivalent processes.arrow_forward
- Which of the following affects the elimination of bacteriafrom an object?(a) Number of bacteria present(b) Temperature(c) pH(d) Presence of organic matter(e) All of the abovearrow_forward21) a decrease in cell mass, reduction, is observed when which of the following conditions are met. a) abundant energy b) abundant amino acids c)growth factors d) all of these e)none of thesearrow_forward1) Listen In the lab you are testing a bacterium's oxygen requirement for growth. You grow your bacterium in a test tube, without shaking at the appropriate temperature. The next day you find that your bacterial culture is growing only at the top surface (ie at the top of the tube closest to the cap) and not dispersed throughout the test tube. What term would be used to describe the oxygen requirement of this bacterium? O A) Obligate aerobe. O B) Microaerophile. O C) Anaerobe. D) Obligate anaerobe. E) Facultative anaerobe.arrow_forward
- Electron microscopy of an aquatic sample of unknown origin revealed microscopic entities appearing as 20-sided polyhedral structures. The structures were determined to each have a sıze dimension of 25 nanometers x 35 nanometers; a nucleus was not visible. Of the choices given below, you can be reasonably certain that these are some type of. A) O archaea species B) O algal species C) O fungal species D) O bacterial species E) O virusarrow_forwardYou perform a Gram staining technique on two bacterial species and observe that one is stained purple while the other is stained pink. Which of the following is consistent with this observation? a) The purple one is likely more resistant to penicillin b) Both bacteria have a cell wall made of mycolic acid c) Their peptidoglycan layers have the same thickness d) They differ in the number of phospholipid membranes e) One has a monolayer of phospholipids while the other has a bilayer of phospholipidsarrow_forward70) The term Autotroph in bacteria refers to _____ source for an organism: a) Carbon b) Energy c) Electron d) Food e) Macromolecule71) A Chemolithotrophic organism gets its energy from: a) Chemical bond present in organic substance b) Chemical bond present in inorganic substance c) Chemical bond present in light d) a and c are correct e) none of the above72) Precursor metabolites are used in the biosynthetic pathways to: a) build elements b) assemble macromolecules c) assemble polymers d) monomers e) reduce sugararrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSON
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Anatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
Bacterial Infections in Humans; Author: Professor Dave Explains;https://www.youtube.com/watch?v=FeFKAl9KyMg;License: Standard Youtube License