In this chapter, we will learn about metabolism and enzymes. Metabolism refers to all the chemical reactions that occur in our body to maintain life. Enzymes, on the other hand, are special proteins that speed up these chemical reactions. We will learn about the naming of enzymes, which usually ends with "ase" and are derived from their substrates. We will also study the general properties of enzymes. Lastly, we will explore the application of enzymes in our daily lives, such as in digestion, laundry detergents, and food production.
• Define metabolism
• Menyatakan jenis metabolisme dalam sel: (i) anabolisme. (ii) katabolisme
• Define the enzymes
• Reason out the necessity of enzymes in metabolism
• Describe the naming of enzymes with the addition of ase to their substrates
• Characterise the general properties of enzymes
• Communicate about the involvement of specific organelles in the production of: (i) intracellular enzymes. (ii) extracellular enzymes
• Explain the mechanism of enzyme action using the Lock and key hypothesis
• Interpret energy diagrams to explain the mechanism of enzyme action
• Correlate the mechanism of enzyme action with the change in the following factors: (i) temperature. (ii) pH. (iii) substrate concentration. (iv) enzyme concentration
• Design and conduct experiments to study the effects of temperature and pH on the activities of amylase and pepsin
• Explain by using examples the application of enzymes in daily life
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