Pp Lab Report Digestion Essay examples

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LABORATORY REPORT
Activity:

Effect of Dietary Fiber on Transit Time and Bile

Name:

Hope Schallert

Instructor:

Dr. Weithop

Date:

03.08.2015

Predictions
Dietary fiber will: increase transit time
Dietary fiber will increase the amount of bile acid in solution

Materials and Methods
Effect of Dietary Fiber on Transit Time
1. Dependent variable. number of radiopaque markers in GI tract
2. Independent variable. amount and type of fiber in meal
3. Controlled variables. calories in meal, nutrients in meal

Effect of Dietary Fiber on Bile Acid Adsorption
1. Dependent variable. amount of bile acids in solution
2. Independent variable. amount of fiber in meal
3. Controlled variables. moisture in meal, size of meal particles, calories and …show more content…
Which meal spent the most time in the stomach? Explain your choice based on your results.
I think the soluble rich diet spent the most time in the stomach it had slightly higher numbers than the other two
3. Approximately how long did it take for a meal to move through the colon for the standard diet, the soluble fiber-rich diet, and insoluble fiber-rich diet.
For all of them it took 240 min for their to be almost no more markers present in the stomach
4. Which meal spent the least time in the colon? Explain your choice based on your results.
The standard diet had the lowest numbers
5. Based on the average number of markers in the right colon and the average total number of markers in the colon at 24 hours, which meal do you think spent the least amount time in the small intestine? Explain your choice based on your results
I think the insoluble fiber-rich diet spent the least time in the small intestine the numbers at the 24 hour mark are lower than the other two options 6. Does fiber increase or decrease the amount of bile lost in feces? Explain your choice based on your results.
Increase the numbers are higher with fiber added

Application
1. Explain why eating a high fiber diet may reduce your serum cholesterol level.
One of the ways soluble fiber may lower blood cholesterol is through its ability to reduce the amount of bile reabsorbed in the intestines.
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