Organisation: tissues, organs, digestion and circulation

Levels of organisation, digestion and enzymes with the amylase and food test practicals, the heart, blood and lungs, heart disease and cancer, and transport in plants.

Start: Organisation, digestion and enzymesAbout 20 min, free

Lessons

Practise and test

Mixed reviewQuestions mixed across your lessons.

By the end you can

Describe the digestive system and match each enzyme to its substrate and products
Use rate = 1000 ÷ time to find an enzyme's optimum and analyse the amylase practical
Identify sugars, starch, protein and lipids with the food tests
Trace blood through the heart and calculate cardiac output, flow rates and heart rates
Explain gas exchange in the alveoli and evaluate treatments for coronary heart disease
Use Fick's law to compare rates of diffusion across exchange surfaces (Edexcel, Biology only)
Calculate transpiration rates with a potometer and stomatal density
Link lifestyle risk factors to non-communicable diseases, calculate BMI and waist-to-hip ratio (Edexcel) and tell correlation from cause
Compare benign and malignant tumours, name risk factors for cancer and work with cancer data

Revision notes

Specifications

AQA 8461 (Biology) 4.2
AQA 8464 (Combined Trilogy) 4.2
Pearson Edexcel 1BI0 and 1SC0 Topics 2 and 8
OCR Gateway J247 and J250 B2 and B3

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