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DeVry SCI228 Week 1 iLab


One of the first topics that we need to explore is our
digestive tract. Each step of digestion has its own function. Chewing, for
example, increases the surface area of food particles (physical digestion) so
that the enzymes in the mouth can start breaking the nutrients down (chemical
digestion). Review the two links below and complete the lab assignment stated


Submit your assignment to the Dropbox, located at the top of
this page. For instructions on how to use the Dropbox, read these step-by-step

(See the Syllabus section “Due Dates for Assignments
& Exams” for due dates.)

Students will first examine the interactive links provided
and then answer the questions below. The assignment should be two pages
maximum, double spaced, 12-point font, and have one-inch margins with standard
APA referencing. Essays/handouts are to be written in Microsoft Word and put in
the Dropbox for iLab 1.

Please use the interactive pieces below (although they are
not necessarily for the completion of the iLab assignment) and then follow the
assignment listed below the links.

Required Software

Interactive Media

Digestive System | View Transcript
Gastrointestinal Tract Activities | View Transcript

Adobe Shockwave

To participate in the iLabs, you will need the latest
version of the Shockwave player. Here is the link to download the Shockwave
player to your computer: http://www.adobe.com/shockwave/download/?promoid=BIOY
You may have to wait a while for the iLab diagrams to
You may want to try using Netscape or another browser
instead of Internet Explorer.
If your browser uses a pop-up blocker, you may have to
disable it or hold down the [Ctrl] key while clicking on the iLab link.
You may have to change the ActiveX control settings. In
Internet Explorer, it’s under Tools > Internet Options > click on the
Advanced Tab; scroll down to the Security heading; Check Box that says: Allow
active content to run files on My Computer.
If you have trouble accessing a website, you may need to clean
your computer’s cache. Instructions are posted in Doc Sharing, or click this
link IE Cache Cleaning Guidelines
Microsoft Office: Word

Use a personal copy or access the software at
All Steps

Lab Steps

Part 1

There are several parts to this iLab. Part 1 consists of
listing all of the parts of the digestive system with either a list or photo.
Many people take a screenshot and use it for Part 1. Feel free to also list the
parts as well if you cannot figure out how to take a screenshot.

Part 2

Part 2 technically consists of two parts. The first one
includes describing the location of each body part. For example, the appendix
is located on the right side of the body under the ascending colon. Another way
to do this part would be to write out the parts and put a location/description
next to it. The second part of Part 2 for this section is to describe the
manner in which you will retain the information of where each body part is
located. An example would be, “I will remember the location of each body
part by reviewing the photo and memorizing each location.” Some classmates
develop interesting methods of memorizing where all of the parts are located,
like using mnemonics. Feel free to be creative.

Part 3

For Part 3, which is in a Word document (or the same
document that you have been using for Parts 1 and 2), please take the overall
categories (mouth, small intestine, esophagus, stomach, and large intestine)
and label them with the appropriate mechanisms that occur in each of them
(propulsion, absorption, chemical digestion, and mechanical digestion). Please
remember that each digestive system part mentioned above may be involved in
more than one of the mechanisms.

Part 4

For Part 4, please define each mechanism (propulsion,
absorption, chemical digestion, and mechanical digestion) with two to three
sentences each.

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