BIOS-256 Week 1 OL Lab 1: Carbohydrates The sugars that feed us | Already GRADED A

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 hum an 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. Suprisingly that ice cream does not instantly increase blood glucose draamitically. Breaking down of carbohydrates quickly in the mouth does not leave the sweet taste like when broken down over a longer time due to amylase not having enough time to breakdown the sugars while chewing. The structures of sugars are complex. Answer the questions below: 1. Complete the table below: (2 points) Numbe r Name of the Carbohydrat e Is the carbohydrate a monosaccharide, disaccharide, or polysaccharide Names of component sugars 1 Maltose Disaccharide 2 Glucose Units 2 Lactose Disaccharide Galactose and Glucose 3 Starch Polysaccharide Amylose and Amylopectin 4 Cellulose Polysaccahride Carbon,Hydrogen and Oxygen 2. Describe, in your own words, the main functions of carbohydrates in the body. Provide energy to the body, whether its instantly, stored or steady supply 3. Reflection: Consider what you learned from this simulation. Reflect on three to four key concepts that you learned in this lab exercise. How could the lessons learned in this virtual lab relate to a real world situation in the community/world or your future career? Be specific in your answer (this should require 5-10 sentences). Helping diabetics understand their diets and healthy eating in order to maintain a steady level of glucose in their bodies without raising their blood sugar too high would be the main real world situation we would use this lab in. We would also be able to help athletes to maintain their endurance levels by educating them on healthy carbohydrates to load up on before major events. Both of these concepts would also help others in their weight battles, whether its losing or gaining. Grading Rubric: Activity Deliverable Points Part I Complete simulation and answer all questions 9 Part II Complete lab report and answer questions • Purpose (1 point) • Observation (3 points) • Questions (3 points) • Reflection (2 points) 9 Total Complete all lab activities 18 Show Less