Friday, July 13, 2012

STPM Biology - chapter 1: Revision essay question 11

11. Why do many organism store fats rather than carbohydrate in their body?


Answer:



·        Fats contains more carbon-hydrogen bonds.they therefore have less than half the mass of carbohydrates for a similar quantity of energy stored.
·        This helps to reduce body weight to make movement easier from place to place
·        Fats are insoluble in water and do not diffuse out of their places of storage
·        They also protect the body and internal organs,act as heat insulator and waterproofing.
·        Oxidation of fats produces metabolic water which can be used by some animals e.g desert animals.

Assignment submitted by group chee tian 2011/2012 (IBM)

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