Back to simulations

Gram Stain: How stains and counterstains work | Virtual Lab

High School
Higher Education
Biology
Health Sciences
Gram Stain: How stains and counterstains work
Labster is used by 1,000's of amazing schools and universities
Learn more

Heading 1

Heading 2

Heading 3

Heading 4

Heading 5
Heading 6

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.

Block quote

Ordered list

  1. Item 1
  2. Item 2
  3. Item 3

Unordered list

  • Item A
  • Item B
  • Item C

Text link

Bold text

Emphasis

Superscript

Subscript

About This Simulation

Have you ever wondered how the bacteria cell actually gets stained during Gram staining procedure? Discover how the cell retains a certain color during the experiment and to differentiate it under the microscope!

Learning Objectives

  • Relate the structure of bacterial cell envelopes to Gram stain outcomes
  • Differentiate the gram positive and gram negative bacteria under the microscope

About This Simulation

Level:
High School
Higher Education
Length:
13
Min
Accessibility Mode:
Available
Languages:
English
Spanish
French
German
Italian

Lab Techniques

  • The Gram stain technique
  • Light microscopy
No lab techniques are listed for this simulation.

Related Standards

University:
  • Early Stage Bachelors Level
  • EHEA First Cycle
  • FHEQ 6
  • SCQF 9
  • US College Year 2
  • US College Year 1
  • EHEA Short Cycle
NGSS:
  • LS2.A-H1
AP:
  • Biology Unit 2: Cell Structure and Function
LB:
  • Biology 1.3 Membrane structure
  • Biology 6.3 Defence against infectious disease
No lab techniques are listed for this simulation.

Learn More About This Simulation

This short, targeted simulation is adapted from the full-length “The Gram Stain: Identify and differentiate bacteria” simulation.

Did you know that almost all 5 million-trillion-trillion bacteria in the world can be divided into Gram-negative or Gram-positive groups? Have you ever wondered how exactly the structural components of the cell wall get stained? Dive into the microscopic world and discover the colorful magic of Gram staining procedure!

Explore the bacterial cell wall structure

Compare and contrast the cell wall of Gram-positive and Gram-negative bacteria by diving into their microscopic samples and observing how the cell wall structures retain certain reagents during the experiment. Discover how the four reagents of the Gram stain interact with structural components of the cell wall to color the bacteria.       

Interpret given samples using a microscope 

Being able to tell the difference, you will use a light microscope to interpret the results of a given Gram stain. View the microscopic image on the computer screen, and remember to  apply immersion oil to increase magnification! Will you be able to identify the presence of bacteria?

Experience Labster for Yourself

Boost Learning with Fun

75% of students show high engagement and improved grades with Labster

Discover Simulations That Match Your Syllabus

Easily bolster your learning objectives with relevant, interactive content

Place Students in the Shoes of Real Scientists

Practice a lab procedure or visualize theory through narrative-driven scenarios

Try Now
Try the Lab Safety simulation
a group of people standing around a laptop computer

For Science Programs Providing a Learning Advantage

Professor Margaret Brady was able to enhance student learning with A&P virtual labs.
Margaret Brady
Associate Professor
North Dakota State College of Science

“They did the simulation at home, then completed the in-person lab within 30 minutes, no questions asked, and passed the quiz with flying colors.”

Lewis Mattin
PhD
Lecturer in Human Physiology
University of Westminster

"I saw some of the students who clearly didn’t necessarily like sitting there reading a book discover they could turn on Labster and keep up with the rest of the class because it spoke to them.

Melody McGill
Curriculum Coordinator
Modesto City Schools

"Having something that's engaging for the students gives teachers that opportunity to breathe and get excited again. Because they're seeing the kids light up, they're seeing the kids engage with content."

user
Kyle Hammon
Adjunct Instructor
Wenatchee Valley College

"The question always is, ‘Can we demonstrate that the students are meeting course outcomes?’ Check! We can do that.”

Dr. Melody Esfandiari
Chemistry Lecturer
San José State University

"We surveyed over 400 students. More than 90% thought Labster was easy to navigate, and that it was fun, but more importantly, most of them felt confident that they could execute the labs in person. And that confidence is a big deal."

a man in a black sweater and white shirt
Dr. Stuart Goodall
Lecturer
Northumbria University

“The Labster simulations get students to do things, and they're not just sitting there consuming a webinar where their mind can drift. They become an active participant in that learning experience.”

a black and white photo of a clock tower
the case western reserve university logo
the university of texas foundation logo
undefined
undefined
undefined
undefined
the logo for the university of washington
the university of texas at san antonio logo
undefined
a black and blue logo with a blue circle
a picture of a building with a clock on it
the university of florida logo
a black and blue logo with the words kansas on it
the logo for the university of washington
undefined
a green and white logo with the words tulane university
undefined
johns hopkins university logo on a white background
the university of skowde logo

FAQs

Find answers to frequently asked questions.

Heading 1

Heading 2

Heading 3

Heading 4

Heading 5
Heading 6

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.

Block quote

Ordered list

  1. Item 1
  2. Item 2
  3. Item 3

Unordered list

  • Item A
  • Item B
  • Item C

Text link

Bold text

Emphasis

Superscript

Subscript

How do students access Labster?

Labster is hosted online, which means that students only have to login from their internet browsers once an account is created.

How is Labster purchased?

Labster is only available for purchase by faculty and administration at academic institutions. To procure Labster, simply reach out to us on our website. Schedule a demo, book a meeting to discuss pricing, start a free trial, or simply fill out our contact form.

How is Labster different from other learning solutions?

Labster simulations are created by real scientists and designed with unparalleled interactivity. Unlike point and click competitors, Labster simulations immerse students and encourage mastery through active learning.

What types of courses does Labster support?

Labster supports a wide range of courses at the high school and university level across fields in biology, chemistry and physics. Some simulations mimic lab procedures with high fidelity to train foundational skills, while others are meant to bring theory to life through interactive scenarios.