Student Exploration of the Digestive System with G

Preview (3 of 8 Pages)

100%

Student Exploration of the Digestive System with G - Page 1 preview image

Loading page ...

Date:November 4, 2022Name:Student Exploration: Digestive SystemDirections: Follow the instructions to go through the simulation. Respond to the questions andprompts in the orange boxes.Vocabulary:absorption, amino acid, carbohydrate, chemical digestion, chyme, complex carbohydrate,digestion, digestive system, elimination, enzyme, fat, fatty acid, fiber, food calorie, mechanical digestion,monoglyceride, nutrient, peristalsis,protein,starch,sugar,villusPrior Knowledge Questions(Do these BEFORE usingtheGizmo.)1.Why do we need to eat food?To survive.2.How do you think our bodies break food down,,.I.,._Through digestioninto useful nutrients?Gizmo Warm-upThedigestive systemisagroup of organs that does three things:•First, the digestive system breaks food down into usefulnutrients, a process calleddigestion.•Next, the nutrients move into the bloodstream, a processcalled absorption•Finally, the leftover waste is removed from the body, a processcalled eliminationWith theOfgest/ve System Gizmo, you can arrange the organs of thedigestive system any way you like. To begin, look at the organs on the UkRGE ORGANS tab. Place yourcursor over each organ to learn more about it1.2.3.Which organs allow nutrients to be absorbed?Which organ stores and compacts wastebefore it is eliminated?Which iwo organs help to break food downmechanically?Small intestineRectum/anusThe stomach and the large intestine

Student Exploration of the Digestive System with G - Page 2 preview image

Loading page ...

Activity A:Get the Gizmo ready:MBuild a digestivesystem•If necessary. clickClear screen.Goal: Design your own digestive system.1.Explore: Readlhedescriptions of the large organs, as well as those of lhe small organsonthe next lab.Fillin the names of the organs that serve the functions listed below:This organ absorbs water and vitamin K from digesled food.This organ producesenzymeslhat break down nutrients.Theselinyblood vessels (ransport absorbed nutrients.These cells produce hydrochloric acid (HCI).These cells produce peps/n. which breaks down proteins.Large intestinePancreasCapillariesParietal CellsChief Cells2.Build Nowilis time to design and build your own digestive system! Startwiththe LARGE ORGANS tab tobuild a basic system, startingwiththeMouth/pharynx. Next.attach organs from the SP.1ALL ORGANS tabto the large organs to complete your system.jOpen the Tools menu and click Screenshot. Right-clickthe image, choose CopyImage,and pastelheimage below.

Student Exploration of the Digestive System with G - Page 3 preview image

Loading page ...

3.Predict: How well do you think your system will digest food? Explain your reasoning.Not very well because I’m not sure that I pul all the large and small organs in the rightspots.4.Prepare: Select the FOOD tab. The energy we get from food is measured in food calories (Calories). EachCalorie is equal Io 4.1S4 joules of energy. Calories are found in lhe three main nulrienls in food:carbohydrates (sugars and starches), proteins and fats.Drag the Cheeseburger above the moulh in your digestive system. How many Calories in thecheeseburger come from carbohydrates, proteins, and fats?Carbohydrate59g (226Calories:Cal)ProleinCalories:40g (360Cal)35g (140 Cal)Fal Calories:5.Run the Gizmo: Click Play (* ). and observe the food moving through lhe digestive system. The muscularcontractions that push food through the system are called peristalsis. When food has finished passingthrough the system, you will see a message.A.What percentage of Calories were absorbed by your system?1.1%B.What percentage of water was absorbed?75%C.Based on these results how well do you think this digestive system worked?Explain.Based on these results I don't think this digestive system worked very well al allbecause the percentage of calories absorbed by my system was alarmingly low.Many calories didn't end up entering the bloodstream due to the arrangement ofthe organs.6.Revise: Click Reset (°). Rearrange the organs of your system to try to improve your results. Describehow you changed your system below.As suggested, I added more and moved around the Lymphatic vessels and Capillaries.

Preview Mode

This document has 8 pages. Sign in to access the full document!

Report

Study Now!

Document Details

Related Documents

SERE 100

Company

Explore

Study Tools