These free teaching resources and biology practical investigation ideas are referred to within the Edexcel AS Biology specification.

Many other practical investigations and resources to support your teaching are available throughout the SAPS website. Please go to Secondary Resources for a filterable index of other resources available.

T2

Enzyme rates of reactions

• Practical - Student Sheet 14 - Phosphatase Enzymes in Plants 
  

Stomata

• Video clip - Leaf structure, stomata and carbon dioxide
  

Selective breeding and genetics

• Video clip - Norman Borlaug and selective breeding of wheat 
  

• Video clip - Muriel Weldale and complex gene interactions 
  

• Video clip - William Bateson and patterns of inheritance
  

• Video clip - The discovery of gene switches in maize
  

T3

Root tip squash

• Practical - Investigating mitosis in allium root tip squash

Totipotency of plant cells

• Practical: Tissue culture - cloning cauliflowers
  

T4

Antimicrobial properties of plants

• Practical - Investigating Antimicrobials
  

Extended Project Qualification

We have a large number of resources, including ideas for practical investigations, for the extended project qualification in the student section of the website.

Planning an investigation or extended project

Project and practical investigation ideas