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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
Lab Techniques
- The Gram stain technique
- Light microscopy
Related Standards
- Early Stage Bachelors Level
- EHEA First Cycle
- FHEQ 6
- SCQF 9
- US College Year 2
- US College Year 1
- EHEA Short Cycle
- LS2.A-H1
- Biology Unit 2: Cell Structure and Function
- Biology 1.3 Membrane structure
- Biology 6.3 Defence against infectious disease
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?
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Related Course
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Building Gram Positive and Gram Negative Cell Walls
Have you ever wondered what exactly makes bacteria divided into Gram groups? Do they have special barcodes or tiny identifiers at their surface? Let's find out together!
Bacterial Shapes and Movement
Explore different bacterial shapes by using a microscope to look at a sample of bacteria from Antarctica.
Introductory Lab
Learn about lab safety, scientific methods, diffusion and osmosis, acids, bases and how to prepare buffers.
For Science Programs Providing a Learning Advantage
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.”
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.
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."
Wenatchee Valley College
"The question always is, ‘Can we demonstrate that the students are meeting course outcomes?’ Check! We can do that.”
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."
FAQs
Find answers to frequently asked questions.
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A Labster virtual lab is an interactive, multimedia assignment that students access right from their computers. Many Labster virtual labs prepare students for success in college by introducing foundational knowledge using multimedia visualizations that make it easier to understand complex concepts. Other Labster virtual labs prepare learners for careers in STEM labs by giving them realistic practice on lab techniques and procedures.
Labster’s virtual lab simulations are created by scientists and designed to maximize engagement and interactivity. Unlike watching a video or reading a textbook, Labster virtual labs are interactive. To make progress, students must think critically and solve a real-world problem. We believe that learning by doing makes STEM stick.
Yes, Labster is compatible with all major LMS (Learning Management Systems) including Blackboard, Canvas, D2L, Moodle, and many others. Students can access Labster like any other assignment. If your institution does not choose an LMS integration, students will log into Labster’s Course Manager once they have an account created. Your institution will decide which is the best access method.
Labster is available for purchase by instructors, faculty, and administrators at education institutions. Purchasing our starter package, Labster Explorer, can be done using a credit card if you are located in the USA, Canada, or Mexico. If you are outside of North America or are choosing a higher plan, please speak with a Labster sales representative. Compare plans.
Labster supports a wide range of STEM courses at the high school, college, and university level across fields in biology, chemistry, physics, and health sciences. You can identify topics for your courses by searching our Content Catalog.