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3E4 Group 1 Article Review

Page history last edited by 3E4 group 1 10 years, 11 months ago

 

 

The Human Body By Michael Schirber,

Special to LiveScience posted: 16 April 2009 09:37 am ET

http://www.livescience.com/health/090416-cl-human-body.html

Names  of Group Members:

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Some questions to think about:

Pick any two elements and research on the uses of the two elements in our human body.

Iron and Calcium.

 

Iron is an important mineral that contributes to many important physiologic functions in the body.

 

 

Much of the iron in the body is attached to hemoglobin molecules in red blood cells, delivering oxygen to all of the tissues. Extra iron is stored in the liver, bone marrow, spleen, and muscles.

Significant deficiency in iron leads to anemia. Pregnant women, young women during their reproductive years, and children tend to be at the highest risk of becoming deficient in iron. Anemia may be mild, moderate, or severe and may be caused by significant or prolonged blood loss such as that from a bleeding ulcer, menstruation, severe trauma, surgery, or a malignant tumor. It can also be caused by an iron-poor diet, inefficient absorption of dietary iron, pregnancy, and the rapid growth that takes place during infancy, early childhood, and adolescence.

However, excessive iron in the body can lead to hemochromatosis, which can cause diabetes, liver damage, and discoloration of the skin. 

 

http://www.umm.edu/altmed/articles/iron-000309.htm

 

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Calcium is the most plentiful mineral found in the human body.

 

 

 

The teeth and bones contain the most calcium. Nerve cells, body tissues, blood, and other body fluids contain the remaining calcium. Calcium is one of the most important minerals for the growth, maintenance, and reproduction of the human body. Calcium helps form and maintain healthy teeth and bones. Calcium helps with blood clotting, nerve signaling, muscle contraction and relaxation, and the release of certain hormones. It is also needed for a normal heartbeat.

 

http://www.nlm.nih.gov/medlineplus/ency/article/002412.htm

 

 

If scientists were able to invent a magical pill that contains all the essential nutrients our body needs but is expensive, would it be beneficial or harmful to humans?

 

 

It would be harmful to humans. The magical pill only provide essential nutrients, but not all the nutrients that our body require. However, if one day there will not be stocks for the magical pills, those people who are addicted to the pills would suffer as they are accustomed to the magical pills for the essential nutrients our body needs.

 

What are some of the impacts on the following groups of people:

 

1. farmers of crops?

It would be a disadvantage for the farmers as when people purchase for the magical pill, the farmer's crops would not be as popular, as people will eventually depends on the pills to satisfy the needs of nutrients in our body instead of buying different types of food containing different types of nutrients the farmers work hard to produce.

 

2. companies that produce the drug?

This magical pills would definitely benefit the company as they get to earn the money from the people who purchase the pills.

 

3. rich people?

It would be an advantage for these people, as they are able to afford the magical pills.

 

4. poor people?

These people will not benefit as they could not afford for the pills.

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Summary of Assigned Article

(Pick out the key points of the article, Less than 200 words)

About 96% of the human body is made up of four elements: oxygen, carbon, hydrogen and nitrogen, where a lot is in the form of water. While the remaining 4% is a tiny sampling of the periodic table of elements.

These nutrients perform various functions, such as the building of bones and cell structures, regulating the body's pH, carrying charge and driving chemical reactions.

Sulfur is usually not mentioned as a dietary supplement because the body gets plenty of it in proteins.

Sometimes lab animals performed poorly when their diets lacked a particular non-essential element. It is difficult to identify the exact benefit an element confers as it is rare that they enter the body in a pure form. They are not seen as single elements, but as elements wrapped up in a compound. A normal diet consists of thousands of compounds, some containing trace elements.

 

Oxygen (65%) and hydrogen (10%) are found in water, which makes up about 60% of the body by weight.

Carbon (18%) is synonymous with life. Its central role is due to the fact that it has four bonding sites that allow for the building of long, complex chains of molecules. Moreover, carbon bonds can be formed and broken with a modest amount of energy, allowing for the dynamic organic chemistry that goes on in our cells.

Nitrogen (3%) is found in many organic molecules, including the amino acids that make up proteins, and the nucleic acids that make up DNA.

 

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Further Reading on Related Articles

(Include information from other websites that support and do not support your assigned article. You should provide the link of the websites that you obtain the information from.)

 

 

THREE Questions for Critques

1. What is Anemia caused by?

2. Which part of the body contains the most calcium?

3. What are the four elements that made up 96% of the human body?


Critique Group

 

Group Number:                  

 

Answers to Questions

1.

2.

3.

 

Three things good about the Article Review

i.

ii.

iii.

 

Two learning points from the Article Review

A)

B)

 

One possible improvement for the Article Review

 


 

Critique Group

 

Group Number:                 

 

Answers to Questions

1.

2.

3.

 

Three things good about the Article Review

i.

ii.

iii.

 

Two learning points from the Article Review

A)

B)

 

One possible improvement for the Article Review

 


 

 

 

 

 

 

Comments (1)

Sherlyn Chew said

at 12:43 pm on Jun 28, 2009

Hi Ladies, Wow!!!! I'm impressed with the effort you guys put into the wiki. The research done on the further reading is really informative. Just one more part that needs to be completed. Compose three questions for the people critiquing your article to answer. Just this part and you gals are done with the project. Well done and thank you all very much for the effort. =)

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