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About This Simulation
Learn how to perform Tollen’s test for reducing sugars on a variety of food samples. Predict which samples contain reducing sugars and find out how your predictions compare to your results!
Learning Objectives
- Process a food sample through Tollens' test for reducing sugars
- Briefly describe the reaction mechanism that permits the detection of reducing sugars
- Interpret the results of Tollens' test
About This Simulation
Lab Techniques
- Tollens' Test
- Reducing sugars
- Positive and negative controls
Related Standards
- HS-PS2-6
Learn More About This Simulation
Practice makes perfect! In this simulation you will learn how to perform Tollen’s test for reducing sugars on a variety of food samples. You will use your existing knowledge of food macromolecules to predict which food samples contain reducing sugars. Dr. One will guide you step-by-step to process the samples through Tollen’s test. How will your predictions compare to your results?
Make a prediction
Start by getting familiar with the apparatus on your workbench and setting up the heated water bath. Now that you’re set up, use your existing knowledge to predict which food samples will contain reducing sugars. Don’t be afraid to make mistakes. Later you will compare your predictions to your results.
Perform Tollen’s test
Learn how to process food samples through Tollen’s test as if you were in a lab! With step-by-step guidance from Dr. One, you will process the food samples through Tollen’s test and generate some shiny results. Combine the theory of Tollen’s test with your observations to interpret your results and discover which food samples contain reducing sugars.
Results vs. Prediction
The final step is to compare your results to your predictions. Did your results match your predictions? Are there any results that are surprising?
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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.