IGCSE BIOLOGY 
B3 enzymes and B4 HUMAN nutrition

Before you start look back at 8A Digestion.

If you only remember one thing:

• ENZYMES ARE BIOLOGICAL CATALYSTS THAT SPEED UP CHEMICAL REACTIONS.
  
• THE HUMAN DIGESTIVE SYSTEM CONSISTS OF: MOUTH, OESOPHAGUS, STOMACH, SMALL INTESTINE, LARGE INTESTINE (COLON, RECTUM AND ANUS)

This is the third and fourth of the 11 Biology units:
B1. Characteristics of Living Organisms 
B2. Cells
B3. Enzymes 
B4. Nutrition
B5. Transportation
B6. Respiration
B7. Coordination and Response
B8. Reproduction
B9. Inheritance
B10. Energy Flow in Ecosystems 
B11. Human Influences on the Ecosystem

CLICK HERE TO GO TO B4 PHOTOSYNTHESIS

B3 ENZYMES FLIPPED LESSONS

B3 lesson 1: what are enzymes?

Before you start your notebook should look like this:

LESSON 1 VIDEO

B3 LESSON 2: ENZYME ACTIVITY

Before you start your notebook should look like this.

LESSON VIDEO

EXTRA RESOURCES

A cool experiment using Potassium Iodide (it's not an enzyme) as a catalyst for the breakdown of Hydrogen Peroxide.

B4 NUTRITION FLIPPED LESSONS

B4 LESSON 1: NUTRIENTS AND FOOD TESTS

Before you start your notebook should look like this:

THIS LESSON HAS 2 PARTS- YOU HAVE TO DO BOTH
1. VIDEO (FOOD GROUPS)

2. ACTIVITY (FOOD TESTS)

Practise the food tests and make notes from this activity from BBC Bitesize.

B4 LESSON 2: A BALANCED DIET

Before you start your notebook should look like this:

LESSON VIDEO

B4 LESSON 3: DIGESTION AND THE MOUTH

Before you start your notebook should look like this:

LESSON VIDEO

EXTRA RESOURCES

Here is a video about the different teeth animals have with the expert opinion of a vet.

A 23 minute documentary about the Sabre Tooth Tiger. An extinct big cat with MASSIVE canines.

B4 LESSON 4: DIGESTION

Your notebook...

LESSON 4 VIDEO

EXTRA RESOURCES

• Look at the bitesize revision section or try the quiz.
• Have a look at this Prezi: