How Nutrients Get in, and Wastes Out.


By Faisal Premji
Science
10 Assignment -- Part B

In a human being, nutrients are necessary for survival. But how are these
nutrients obtained? This report will go into depth on how the food we eat gets
into our cells, and how the waste products that we produce get out of the body.
Also, the unicellular organism Paramecium will be compared with a human being,
in terms of all of the above factors.

Dietary Nutrients

The chief nutrients in a diet are classified chemically in four groups:
carbohydrates, proteins, vitamins (Which do not require digestion) and fats.

Carbohydrates in the diet occur
mainly in the form of starches. These are
converted by the digestive process to glucose, one of the main nutrients needed
for cellular respiration to occur
. Starch is a large molecule, a polymer of
glucose. Dextrin and maltose are intermediate products in the digestion of
starch. Some foods contain carbohydrates in the form of sugars. These......

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Title: How Nutrients Get In, And Wastes Out.
Approximate Word Count: 1798
Approximate Pages: 8 (250 words per double-spaced page)

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