Microbiology Fundamentals: A Clinical Approach
Microbiology Fundamentals: A Clinical Approach
3rd Edition
ISBN: 9781259709227
Author: Marjorie Kelly Cowan Professor, Heidi Smith
Publisher: McGraw-Hill Education
bartleby

Videos

Textbook Question
Book Icon
Chapter 2, Problem 1Q

The identities of microorganisms on our planet

  1. a. are mostly known.
  2. b. have nearly all been identified via microscopy.
  3. c. have nearly all been identified via culturing techniques.
  4. d. are still mostly unknown.
Expert Solution & Answer
Check Mark
Summary Introduction

Introduction:

The diversity of microbes is very vast and diverse. Identification of new microbes is still studied and various researches have conducted the identification of new strains or species. Various physical and chemical tests are performed to determine the metabolic functions which are specific to species of microbes.

Answer to Problem 1Q

Correct answer:

The identities of various microbes are still unknown on the planet Earth. Therefore, option (d) is correct.

Option (d) is given as “are still mostly unknown”.

Explanation of Solution

Justify reasons for the correct statement:

All the microorganisms present on the planet are not known. There are many species present on the planet Earth which have not been discovered to date. The planet is very diverse and various species and strains of microbes are present in it.

Hence, option (d) is correct.

Justify reasons for the incorrect statements:

Option (a) is given as “are mostly known”.

No, all the species on the planet have not been identified. Hence, it is a wrong answer.

Option (b) is given as “have nearly all been identified via microscopy”.

Microscopy is the technique used for the identification of microorganisms. Hence, it is a wrong answer.

Option (c) is given as “have nearly all been identified via culturing techniques”.

Culturing is used to grow microorganisms and not for identification. Hence, it is a wrong answer.

Hence, options (a), (b), and (c) are incorrect.

Conclusion

Microbiologists claim that many microorganisms present on the planet have not been identified yet. There are so many species of microbes which are unidentified.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Students have asked these similar questions
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?   The cell membranes are more resistant than normal.   An isotonic solution had been added instead of water.   A solution of 0.1 M NaCl had been added instead of water.   Not enough water had been added to the red blood cell pellet.   The man had sickle-cell anaemia.
A sample of blood was taken from the above individual and prepared for haemoglobin analysis. However, when water was added the cells did not lyse and looked normal in size and shape. The technician suspected that they had may have made an error in the protocol – what is the most likely explanation?   The cell membranes are more resistant than normal.   An isotonic solution had been added instead of water.   A solution of 0.1 M NaCl had been added instead of water.   Not enough water had been added to the red blood cell pellet.   The man had sickle-cell anaemia.
With reference to their absorption spectra of the oxy haemoglobin intact line) and deoxyhemoglobin (broken line) shown in Figure 2 below, how would you best explain the reason why there are differences in the major peaks of the spectra? Figure 2. SPECTRA OF OXYGENATED AND DEOXYGENATED HAEMOGLOBIN OBTAINED WITH THE RECORDING SPECTROPHOTOMETER 1.4 Abs < 0.8 06 0.4 400 420 440 460 480 500 520 540 560 580 600 nm 1. The difference in the spectra is due to a pH change in the deoxy-haemoglobin due to uptake of CO2- 2. There is more oxygen-carrying plasma in the oxy-haemoglobin sample. 3. The change in Mr due to oxygen binding causes the oxy haemoglobin to have a higher absorbance peak. 4. Oxy-haemoglobin is contaminated by carbaminohemoglobin, and therefore has a higher absorbance peak 5. Oxy-haemoglobin absorbs more light of blue wavelengths and less of red wavelengths than deoxy-haemoglobin

Chapter 2 Solutions

Microbiology Fundamentals: A Clinical Approach

Knowledge Booster
Background pattern image
Biology
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
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Basic Clinical Lab Competencies for Respiratory C...
Nursing
ISBN:9781285244662
Author:White
Publisher:Cengage
Text book image
Body Structures & Functions
Biology
ISBN:9781285695495
Author:Scott
Publisher:Cengage
Text book image
Aquaculture Science
Biology
ISBN:9781133558347
Author:Parker
Publisher:Cengage
Text book image
Body Structures & Functions Updated
Biology
ISBN:9780357191606
Author:Scott
Publisher:Cengage
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
Intro To Health Care
Health & Nutrition
ISBN:9781337338295
Author:Mitchell
Publisher:Cengage
Infection Prevention and Control; Author: thecityoftoronto;https://www.youtube.com/watch?v=jx9sRYmBW3Q;License: Standard Youtube License