ATL in Biology
Polygenic Inheritance.
Using a powerpoint introduction students learn about another example of inheritance which Mendel didn't attempt to explain. Polygenic inheritance is probably the most common type of inheritance but even...
ATL in Biology
Polygenic inheritance model answers
This page shows suggestions of model answers for the activity: Student worksheet on polygenic inheritance on the HL Genetics topic, activities page Polygenic Inheritance. These are suggestions, not a...
ATL in Biology
Extension concept - Hydrolysis of ATP
In the process of transcription the enzyme RNA polymerase adds nucleotides to the growing mRNA molecule. To achieve this the enzyme requires molecules called nucleoside triphosphate. The aim of this page...
ATL in Biology
Transcription - extras for HL
This lesson begins with a review of the process of transcription and the role of RNA polymerase but quickly turns to the control of gene expression using nucleosomes and methylation. Experiments with...
ATL in Biology
Lung diseases - model answers
This page shows suggestions of model answers for the activity; IB style querstions on lung diseases on the SL activities page Ventilation & lung disease. These are suggestions, not a mark scheme and many...
ATL in Biology
Osmoregulation
Students learn about three methods of controlling water balance in this lesson. A short presentation reminds students about osmosis and introduces some examples osmoconformers and osmoregulators from...
ATL in Biology
Ventilation & lung disease
Students begin by looking at the muscle contractions which cause the pressure changes inside the thorax that force air in and out of the lungs to ventilate them. This is followed by an experiment to monitor...
ATL in Biology
IB Biology induction Free
During the induction period students will learn about some of the important skills needed for success in IB Biology. The activities during the first lessons can be used to assess these key skills and...
ATL in Biology
Muscles & joints
Using a model skeleton or interactive web tools like "Zygotebody" and "Visible Human" students identify different joints in the skeleton before exploring the detail of synovial joints and the human elbow....
ATL in Biology
Chemicals which affect synapses
In these activities students learn how chemicals affect synapses. They answer questions which help to synthesise their knowledge of the structure of membranes, synapses and neurotransmitters. Beginning...