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 96 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?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

For a complete list of videos, visit our video library