Friday, June 13, 2008

Compendium Review 1-4




Outline
Chapters 1,2,3,4

Chapter 1
A. The characteristics of life
1. Acquiring materials and energy
2. Reproducing
3. Growing and Developing
4. Adapting to our environment
5. Life is an evolution

Chapter 2
A. Molecules along with atoms
B. Lipids
1. Oils and fats
2. Dietary Fats

Chapter 3
A. What is a cell?
1. Different parts of a cell
2. Roles they play

Chapter 4
A.Types of tissues
1. Four types of tissues
2. Details about each tissue

Chapters one through four, talked about many important things that has an affect on the human body. There were many important keys in this chapter about how you classify a living form from a non living thing. By taking on these forms you are classified as being a living object. All of them are very important to an individual such as growing and developing such as from a childhood to adolescent to then becoming an adult. Then reproducing creating a copy of two individuals and then insure that their own kind will continue. Another thing that makes us human is the ability that our body has to adapt to his or her environment. The most important one is that we change through time which is called evolution. With changing we are allowing ourselves to live longer lives then those who stay unchanged. Evolution has been going on since the beginning of life and will continue as long as life exists.In chapter two the book brings up water molecules along with atoms and isotopes. The best part was learning about the different oils and fats that you put in your body. I found out that fats are used for many different things in your body like long term storage, insulates against heat loss, and then forms a protected cushion around major organs. Then in the book it shows you an example of a food label and explains what calories you should intake. Also food manufacturers are required to list the amount of trans fat greater then that of .5 g in the nutrition for food.Chapter three is about what a cell is and shows many different pictures of what one looks like. In the pictures it shows many elements that help keep the cell functioning. An animal cell is different from that of a plant cell. Both eukaryotic and prokaryotic both have a plasma membrane which is the outer membrane that controls what goes in and out. Proteins play a major role in this as they decide what can enter and what can’t. All the cells also have cytoplasm, which is a semi fluid in the medium that has water and other types of molecules in it. Everything that is in a cell has an important role that allows certain functions within the body.The last chapter talked about the most important parts to the body, the four types of tissues, cell junctions and organ systems. The part that I was most interested in was the different types of epithelia and where it is found in humans. It is used for lining in lungs, blood vessels, small intestines, trachea, nose and the mouth. The reason why it is so important is because it protects, and it absorbs molecules and nutrients.

No comments: