Sunday, July 15, 2012

BioChem *ehem ...

Biochemistry is another branch of chemistry science
One of many my favorite subject *uweeekk (mual ngomongnya juga)

Okay, here we go ..

Biochemistry a.k.a biological chemistry, is the study of chemical process in living organism, living matter but not limited to them. Fundamental of biochemical are common to all living organism and living processes.

Effects biochemical to our live such as:
- Medicine
- Agriculture
- Industrial
- Environmental
Principle areas of biochemical,
- Structure and functional of biological macromolecules
- Metabolism, anabolism, and catabolism processes
- Molecular genetics - how life is replicated

Metabolism refers to biochemical processes that ocur with any living organism - including humans - to maintain life. These biochemical processes allow us to grow, reproduce, repair damage, and respond to our environment. Most people use the term "metabolism" incorrectly for either anabolism or catabolism.
The modern English word "metabolism" comes from the Greek noun metabole, meaning "change", and the Greek verb metaballein, meaning "to change".
Anabolism, constructive metabolism and catabolism, destructive metabolism.
Anabolism is the building up of things - a succession of chemical reactions that constructs or synthesizes molecules from smaller components, usually requiring energy in the process.
Catabolism is the braking down of things - a series of degradative chemical reactions that break down complex molecules into smaller units, and in most cases releasing energy in the process.

Four Major Classes of Biochemical Compounds
1. Carbohydrates
  • Very important for nutrition and structural support
  • Basic formula 1:2:1 ratio of C:H:O (CH2O)n
  • Monomers: monosaccharides (simple sugar)
  • Polymers: Polysaccharides (complex carbohydrates)
                         1. Storage polysaccharides (e.g, starch, glycogen)
                         2. Structural polysaccharides (e.g, cellulose, chiten)
 
2. Lipids
  • Long hydrocarbon chains result in hydrophobic properties
  • Fats -- used primarily for energy storage
  • Phospholipids
  • Steroids
  • Waxes and wax-like substances (including cutin and suberin)
  • Chlorophylls -- photosynthetic pigments
3. Proteins
  • Many functions within the cell, organism
  • Monomers: Amino acids
  • Polymers: Polypeptides
  • Polypeptides not considered "proteins" unless functional
  • Protein function related to shape or conformation -- 4 levels of structure
  • Enzymes--an example of the importance of proteins
4. Nucleic Acid
  • Monomers: Nucleotides, each with three components
  • Nucleotides linked together to form a sugar-phosphate backbone
  • RNA can form a single strand; DNA forms a double-stranded "helix"
  • Seq. of nucleotides in nucleic acids determines seq. of amino acids in proteins

That's all my study about biochemical. There are basic of biochem, I will continue deeper discussion on another occasion. Thanks for your attention..
I hope this article can be useful for us :)










http://www.medicalnewstoday.com/articles/8871.php
http://www.people.vcu.edu/~gmplunke/bio151/sg3.html

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