chem 120 week 6ol lab 11 carbohydrates the sugars that feed us latest
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CHEM120 OL, Week 6 Lab
OL Lab 11: Carbohydrates: The sugars that feed us
Learning objectives
Explain the molecular structure of sugars and polysaccharides
Explain digestion and appreciate the complexity of the human body
Experiment with different foods and measure their impact on the blood sugar
level
Introduction
Most people are familiar with carbohydrates, especially when it comes to what we eat.
For example, to lose weight, some individuals adhere to “low-carb” diets. Athletes, in
contrast, often “carbohydrate-load” before important competitions to ensure that they
have enough energy to compete at a high level.
Different types of carbohydrates
Carbohydrates are an essential part of a diet because they provide energy to the body.
Grains, fruits, and vegetables are all-natural sources of carbohydrates for energy. These
foods consist of both soluble and insoluble carbohydrates. The insoluble part is known
as fiber, which is mostly cellulose.
Learn how carbohydrates are digested
Your goal in the carbohydrates lab is to learn how carbohydrates are digested and
utilized by the body as an energy source. Use the in-lab molecule visualizer to study the
chemical structure of sugars and learn the basics of molecule structures and chemical
formulas. You will also perform a real experiment and get a sense of how the amylase
breaks down starch. A 3D animation will demonstrate the molecular process of
carbohydrate digestion.
Test the effect on blood glucose levels
You will find that the effect on the blood glucose level is very different, depending on the
food composition. In this lab you will choose different food items and measure the
increase of glucose levels in the blood of a virtual test subject.
Will you be able to use your carbohydrates knowledge to figure out which foods will
cause a spike in the blood glucose levels?
Part 1: Complete Labster Lab: Carbohydrates: The sugars that feed us
Part 2: Report and Reflection
Purpose: Describe in complete sentences and in your own words, the purpose of this
experiment.
To learn how carbohydrates break down and affect blood glucose levels in the
body.
Observations: Record three observations from the simulation.
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