Session One (1.4.1): Enzymes

 Introduction

Living organisms have chemical reactions taking place within them all the time. These reactions are called metabolic reactions. Almost all of these reactions are controlled by catalysts. The catalysts are called enzymes.

Reading

Read through and make notes on pages 40-42 of your coursebook.

 Links

Now work through the following resources:

WATCH – Digestive Enzymes (YouTube) Links to an external site.

Explore – Enzymes (Twig) [Not available with sample course]

EXPLORE – Enzyme Action Trypsin (Twig) - there are several activities to explore here, including an experiment video to watch. [Not available with sample course]

WATCH – Enzymes (YouTube) Links to an external site.

Download

Download and read through this PowerPoint: 

Download EXPLORE – Enzymes (PPT)

Practical

Remember to review the Safety Guide. Download Safety Guide.

Download PRACTICAL - Enzyme Activity

Skill

If you have completed the ‘How Enzyme Action Can be Affected’ practical, create a data table for your results and draw a graph of your results. Then answer the Conclusion and Discussion Questions.

Watch this video for guidance about drawing a table and a graph:

WATCH – How to Draw Tables and Graphs in Science (YouTube) Links to an external site.

Activity

Answer the questions on pages 40-42.

Update your flash cards with the key words on pages 40-42.

Review

Complete Questions 1-3 on pages 49-50. Check your answers.