CONCEPTS OF BIOLOGY
CONCEPTS OF BIOLOGY
13th Edition
ISBN: 2810014143673
Author: OpenStax
Publisher: OpenStax
bartleby

Concept explainers

bartleby

Videos

Textbook Question
Book Icon
Chapter 13, Problem 1ACQ

Figure 13.6 Which of the following statements is true?

a. Gram-positive bacteria have a single cell wall formed from peptidoglycan.

b. Gram-positive bacteria have an outer membrane.

c. The cell wall of Gram-negative bacteria is thick, and the cell wall of Gram-positive bacteria is thin.

d. Gram-negative bacteria have a cell wall made of peptidoglycan, while Gram-positive bacteria have a cell wall made of phospholipids.

Chapter 13, Problem 1ACQ, Figure 13.6 Which of the following statements is true? a. Gram-positive bacteria have a single cell

Expert Solution & Answer
Check Mark
Summary Introduction

Introduction:

The gram stain test is used to differentiate between the gram-positive bacteria and gram-negative bacteria. The gram-positive bacteria retain the crystal violet stain of the gram stain test. While, the gram-negative bacteria, do not retain the crystal violet stain when discoloring agent is applied to it.

Answer to Problem 1ACQ

Correct answer:

Among the answers given, the correct answer is option (a) the cell wall of gram-positive bacteria us formed only of peptidoglycan.

Explanation of Solution

Explanation/justification for the correct answer:

Option (a) is the cell wall of gram-positive bacteria is formed only of peptidoglycan. The cell wall of gram-positive bacteria is thick as it contains many layers of peptidoglycan. Whereas, the cell wall of gram-negative bacteria is thin layered and is composed of peptidoglycan and other structures. Hence, this option is correct.

Explanation for incorrect answer:

Option (b) is gram-positive bacteria contains an outer membrane. The cell wall of gram-negative bacteria is surrounded by an outer membrane, while there is no outer membrane in gram-positive bacteria. Hence, this option is incorrect.

Option (c) is the cell wall of gram-negative bacteria is thick and that of gram-positive bacteria is thin. Many layers of peptidoglycan make the cell wall of gram-positive bacteria thick, while a single layer of peptidoglycan in gram-negative bacteria makes the cell wall thin. Hence, this option is incorrect.

Option (d) is the cell wall of gram-negative bacteria is made of peptidoglycan and that of gram-positive bacteria is made of phospholipids. The cell wall of gram-positive bacteria does not contain phospholipids. It is made up only of peptidoglycan. On the other hand, the cell wall of gram-negative bacteria contains other structures along with peptidoglycan. Hence, this option is incorrect.

Conclusion

The correct statement is that gram positive bacteria contains only of peptidoglycan. Hence, option (a) is correct.

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
Respond to the following in a minimum of 175 words:  How far might science go in the name of genetic research, and at what point should genetic research be regulated? What types of ethical issues might arise from altering the genes of humans, animals, and plants? Provide an example and discuss the advantages and disadvantages of genetic experimentation.
please help thank you
How are sharks different than all the other species
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
Comprehensive Medical Assisting: Administrative a...
Nursing
ISBN:9781305964792
Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy Correa
Publisher:Cengage Learning
Text book image
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Text book image
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Biology
ISBN:9781305967359
Author:STARR
Publisher:CENGAGE L
Text book image
Biology Today and Tomorrow without Physiology (Mi...
Biology
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cengage Learning
Text book image
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Bacterial Structure and Functions; Author: Osmosis;https://www.youtube.com/watch?v=b15Hy3jCPDs;License: Standard youtube license