This topic contains a solution. Click here to go to the answer

Author Question: Describe the steps of the process of digestion. What items are absorbed in the small intestines? ... (Read 66 times)

tiara099

  • Hero Member
  • *****
  • Posts: 588
Describe the steps of the process of digestion. What items are absorbed in the small intestines? What items are absorbed in the large intestine?
 
  What will be an ideal response?

Question 2

Discuss how nutrition needs change after the age of 50.
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aloop

  • Sr. Member
  • ****
  • Posts: 315
Answer to Question 1

Answer: Digestion begins in the mouth. Chewing mixes saliva with food and begins to break it down. The food travels from the mouth to the stomach through the esophagus. The stomach mixes food with chemicals that break it down further. Most digestion and absorption occurs in the small intestine. Water, vitamins, and some minerals are absorbed in the large intestine. The remaining wastes are passed out of the body in stool.

Answer to Question 2

Answer: It is recommended that after the age of 50, the body needs an increased amount of calcium, and vitamins B6 and D. Older adults have a decreased need for iron and fiber because of the changes in the way an aging body digests food, absorbs nutrients, and excretes waste. The daily recommended amount of vitamin B12 is not changed. However, older adults are encouraged to eat foods with added B12 or take the vitamin as a supplement.




aloop

  • Sr. Member
  • ****
  • Posts: 315

 

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

For a complete list of videos, visit our video library