Brock Biology of Microorganisms (14th Edition)
14th Edition
ISBN: 9780321897398
Author: Michael T. Madigan, John M. Martinko, Kelly S. Bender, Daniel H. Buckley, David A. Stahl, Thomas Brock
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
thumb_up100%
Chapter 2, Problem 5RQ
How large can a bacterium be? How small? Why is it that we likely know the lower limit more accurately than the upper limit? What are the dimensions of the rod-shaped bacterium Escherichia coli?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
What are the disadvantages of using the mouth in filling a pipette?
Why do we use exponential notation in counting bacteria?
Why is serial dilution necessary?
After completion of a Gram stain procedure, you notice the bacteria cells shown in the picture
below. How would you categorize the bacteria based on 1. Gram stain results, 2. Cell
arrangement, and 3. cell shape.?
Would the bacteria in question 7 have a thick layer of peptidoglycan or a thin layer of
peptidoglycan in its cell wall?
Would the bacteria in question 7 have an outer lipopolysaccharide layer in its cell wall?
Would the antibiotic penicillin likely work to eliminate infection with the bacteria in question 7?
How would you describe the type of flagella arrangement for the bacterium below? (You'll use
one word for the description here.)
1) 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.
Chapter 2 Solutions
Brock Biology of Microorganisms (14th Edition)
Ch. 2.1 - Define the terms magnification and resolution.Ch. 2.1 - Prob. 2MQCh. 2.2 - Prob. 1MQCh. 2.2 - Prob. 2MQCh. 2.2 - How can cells be made to fluoresce?Ch. 2.3 - Prob. 1MQCh. 2.3 - Prob. 2MQCh. 2.4 - Prob. 1MQCh. 2.4 - Prob. 2MQCh. 2.5 - How do cocci and rods differ in morphology?
Ch. 2.5 - Prob. 2MQCh. 2.6 - What physical property of cells increases as cells...Ch. 2.6 - How can the small size and haploid genome of...Ch. 2.6 - What are the approximate limits to how small a...Ch. 2.7 - Prob. 1MQCh. 2.7 - Prob. 2MQCh. 2.8 - Prob. 1MQCh. 2.8 - Prob. 2MQCh. 2.9 - Compare and contrast simple transporters, the...Ch. 2.9 - Prob. 2MQCh. 2.10 - Why do bacterial cells need cell walls? Do all...Ch. 2.10 - Prob. 2MQCh. 2.10 - Prob. 3MQCh. 2.11 - Prob. 1MQCh. 2.11 - Prob. 2MQCh. 2.11 - Prob. 3MQCh. 2.11 - Prob. 4MQCh. 2.12 - Prob. 1MQCh. 2.12 - Prob. 2MQCh. 2.12 - Prob. 3MQCh. 2.13 - Prob. 1MQCh. 2.13 - Prob. 2MQCh. 2.14 - Prob. 1MQCh. 2.14 - Chapter Review Why would it be impossible for...Ch. 2.14 - Chapter Review How are magnetosomes and the...Ch. 2.15 - Prob. 1MQCh. 2.15 - Prob. 2MQCh. 2.16 - Prob. 1MQCh. 2.16 - Prob. 2MQCh. 2.16 - Prob. 3MQCh. 2.17 - Prob. 1MQCh. 2.17 - Prob. 2MQCh. 2.18 - Prob. 1MQCh. 2.18 - Prob. 2MQCh. 2.19 - Prob. 1MQCh. 2.19 - Prob. 2MQCh. 2.19 - Prob. 3MQCh. 2.19 - Chapter Review How does scotophobotaxis differ...Ch. 2.20 - Prob. 1MQCh. 2.20 - Prob. 2MQCh. 2.20 - Prob. 3MQCh. 2.21 - Prob. 1MQCh. 2.21 - Prob. 2MQCh. 2.21 - Prob. 3MQCh. 2.22 - Prob. 1MQCh. 2.22 - Prob. 2MQCh. 2.22 - Prob. 3MQCh. 2 - Prob. 1RQCh. 2 - Prob. 2RQCh. 2 - Prob. 3RQCh. 2 - What are the major morphologies of prokaryotic...Ch. 2 - How large can a bacterium be? How small? Why is it...Ch. 2 - Prob. 6RQCh. 2 - Prob. 7RQCh. 2 - Prob. 8RQCh. 2 - Cells of Escherichia coli transport lactose via...Ch. 2 - Prob. 10RQCh. 2 - List several functions of the outer membrane in...Ch. 2 - Prob. 12RQCh. 2 - Prob. 13RQCh. 2 - Prob. 14RQCh. 2 - Prob. 15RQCh. 2 - In a few sentences, indicate how the bacterial...Ch. 2 - Prob. 17RQCh. 2 - Prob. 18RQCh. 2 - Contrast the mechanism for motility in...Ch. 2 - Prob. 20RQCh. 2 - Prob. 21RQCh. 2 - List at least three features of eukaryotic cells...Ch. 2 - Prob. 23RQCh. 2 - Prob. 24RQCh. 2 - Prob. 25RQCh. 2 - Describe the major functions of the endoplasmic...Ch. 2 - Prob. 1AQCh. 2 - Prob. 2AQCh. 2 - Assume you are given two cultures, one of a...Ch. 2 - Prob. 4AQCh. 2 - Assume you are given two cultures of rod-shaped...
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_forwardCan the presence and absence of capsules in bacteria be used to identify unknown bacteria? YES OR NO? WHY?arrow_forwardMacConkey agar is often used to differentiate E. coli from other Gram-negative rods. The recipe for MacConkey agar is given in the table. Suppose you plated a mixed culture of Escherichia coli, Bacillus subtilis, and Streptococcus pyogenes onto a MacConkey agar plate. Which species would grow, and how would they appear? Why would the others NOT grow?arrow_forward
- Calculate the surface/ volume ratio of the spherical Neisseria gonorhoe bacterium. Compare this with the surface -to-volume ratio of the large eukaryote ameba Neisseria gonorhoe bacterium = 0.5 micrometer in diameter eukaryote ameba = 150 mm in diameterarrow_forward47. All the following characteristics can describe bacterial colony’s shape and form except: a) Colony margins b) Form c) surface characteristics d) presence or absence 0f an outer membrane in the bacteria 48. A box shaped bacterial arrangement made of 8 spherical looking bacteria is called: a) Staphylobacillus b) Sarcina c) Octococcus d) Diplotetrad 49.arrow_forwardThe process of collecting characteristics of your unknown bacterium can be helped by the use of a dichotomous key. A dichotomous key is a flowchart that can be used to identify an organism. a) in your own words explain how to create and use a dichotomous key to identify unknown bacteriaarrow_forward
- Identify the shapes and arrangements of the following bacteria observed under the microscope. Recall: look for the arrangement seen with most cells; you may see another arrangement that is less common. option: diplo, bacillus, negative, coccus, positive, staphylo, strepto. Gram stain Cell arrangement Cell Shapearrow_forwardThe Kirby-Bauer test examines the effectiveness of antibiotics and disinfectants or antiseptics on separately plated bacteria. Which of the following Zones of Inhibition (ZOI) measurements on a plate of Klebsiella pneumoniae shows the strongest inhibition of the bacterium's growth? a) Penicillin, 7 mm ZOI b) Actinomycin, 9 mm ZOI c) Tetracycline, 26 mm ZOI d) Chloramphenicol 2 mm ZOI e) Streptomycin, 23 mm ZOIarrow_forwardAll except which of the following are important aspects to consider in determining the G+C content of a microorganism? a) determination of gram stain b)double stranded dna absorbs less light than single DNA strang c)he greater the G+C content, the higher the temperature required to denature DNA d) 3 hydrogren bonds between G+C content vs 2 hydrogen bonds between A and Tarrow_forward
- Why do low concentrations of alcohol inhibit Gram-negative bacteria more than Gram-positive bacteria? Explain how the alcohol interacts with: 1) Gram-negative cell wall structures 2) Gram-positive cell wall structuresarrow_forwardYou have a culture of bacteria with an unknown number of bacteria in it. You have at your disposal 10 1-mL pipettes, 3 dilution bottles that hold up to 100mL of volume, 3 test tubes that hold up to 10mL of volume, a graduated cylinder, an unlimited supply of distilled water. Explain how you would set up a 1: 10,000,000 dilution of your culture.arrow_forwardWhy do acid-fast positive bacteria grow more slowly?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Bacterial Structure and Functions; Author: Osmosis;https://www.youtube.com/watch?v=b15Hy3jCPDs;License: Standard youtube license