Page 104 - Demo 1

Lesson 2

Enzymes

Source: https://images.nigms.nih.gov/PublicAssets/2521/Enzymes_Convert_Subtrates_into_Products1.jpg

Learning Objectives

At the end of this lesson, you must be able to:
1. describe the components of an enzyme and
2. explain how factors such as pH, temperature, and substrate
affect enzyme acvity.
Enzymes are proteins made from amino acids. An enzyme is formed by
stringing together from 100 to 1,000 amino acids in a very specific and unique
order. The chain of amino acids then folds into a unique shape. That shape
allows the enzyme to carry out specific chemical reacons. Enzymes are the
catalysts used by cells to speed up chemical reacons. By controlling which
enzymes are present and when they are acve, cells are able to regulate what
happens within them.

COMPONENTS OF AN ENZYME

The molecules acted on by an enzyme, referred to as substrates, are
converted into products. An enzyme works by binding to a specific substrate

96