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inorganic compounds are considered to be of a mineral, not biological, origin


An organic compound is one that has contains carbon atom,

Amino acids are molecules containing an amine group, a carboxylic acid group and one of the twenty R-groups

In the alpha amino acids, the amino and carboxylate groups are attached to the same carbon atom, which is called the a carbon


external image amino_acid_structure_2.jpg













Glucose (Glc), a monosaccharide (or simple sugar )also known as grape sugar, blood sugar, or corn sugar, is a very important carbohydrate in biology.Glucose is one of the main products of photosynthesis.
external image glucose.gif

primarily occurring as D-ribose, is an organic compound that occurs widely in nature. It is an aldopentose, that is a monosaccharide containing five carbon atoms.


external image Ribose.png
chemistry, especially biochemistry, a fatty acid is a carboxylic acid often with a long unbranched aliphatic tail (chain), which is either saturated or unsaturated
whereas fatty acids derived from natural fats and oils may be assumed to have at least eight carbon atoms

external image fatty-acid.jpg
examples of monosaccharides are:glucose, fructose, galactose
examples of disaccharides are: maltose, sucrose, and lactose
examples of polysaccharides are: starch, glycogen, and chitin

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What is one function of ------------- in animals?
  • GLUCOSE: used to preform cell respiration. Cells obtain the energy needed from glucose molecules. Simple sugars are a major fuel source for cell activity. ( most common monosaccharide)
  • LACTOSE: the sugar present in milk. ( disaccharide)
  • GLYCOGEN: Provides animals with a release of glucose when the body's demand for sugar increases. It's stored fuel but, it cannot sustain an animal for long. It can be replenished with the inake of more food. (polysaccharide: polymer of glucose)

What is the function of ---------- in plants?


  • FRUCTOSE: provides plants with a similar energy to glucose. Serves as raw meterial for other forms of synthesis.
  • SUCROSE: plants use sucrose to transport charbohydrates from leaves to roots and other non- photsynthetic organs. ( most prevalent disaccharide.....made up of two monomers; glucose and fructose)
  • CELLULOSE: helps plants build strong cell walls which inclose the plant cell. ( ploysaccharide, polymer of glucose)




FUNCTION OF LIPIDS:
-Lipids are considered as fats which is stored energy. ( A gram of fat stores twices as much energy as a gram of a polysaccharide, like starch) Fats coushion vital organs and also insulate the body.
-A Pospholipid is similar to fat but, it's a major component of the cell membrane which protects the cell.
-Lipids are also steroids that control hormones, including sex hormones.


Comparison of carbohydrates and lipids in energy storage

Carbohydrates are used for quick spurts of energy. They always need to be regained when you use them up because they are the first source of enery that your body goes for. Carbohydrates can be stored as gylcogen which can be used when there's a need for more glucose. Gylcogen usually cannot last for long and must be replenished. Lipids, on the other hand, are a stored form of energy that acts like a "back- up" for when you body is deprived of carbohydrates. This isn't very healthy because lipids have major roles in the function of our bodies.