Lesson 30: Biological catalysts-enzymes

Hi,

These Powerpoint slides make learning key concepts easy.
The coverage includes the following:

• definition of catalyst
• definition of enzyme
• what is active site
• lock and key hypothesis
• synthesis and hydrolysis type of enzyme reactions
• what is denaturing of enzyme

Cells And Enzymes

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Lesson 29: Organic molecules are produced by plants and animals

Hi,

This set of powerpoint slides cover more on organic molecules in organisms.

• the polar nature of water molecule giving rise to many uses and properties in organisms
• high heat capacity, high latent heat of vaporisation, solubility, capillary action and transpiration pull in xylem vessels
• magnesium ions in plants for making chlorophyll
  
• nitrate ions in plants for making amino acids from glucose
• uses of carbohydrates, mono-, di- and polysaccharides
  
• uses of lipids in body and their structures
  
• uses of proteins in body and their structures

The detailed chemical structures of the many types of carbohydrates, fats and proteins are not in the syllabus.

Chapter 3 Biological Molecules

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