Author
Saad Zai
Biology Teacher
Sir Saad Zai teaches Biology at Learners Academy, with 12 years of teaching experience. Previously taught at LGS JT, BDC, Bll, LGS Phase 5, Crescent, Kaizen, UCL and The City School. Twelve years of making biology click before exam day.
Resources
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Practice Questions
Biological Molecules: Practice Questions
Original exam-style practice questions with full worked answers on carbohydrates, proteins, lipids and food tests.
Cambridge · O LEVELS
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Revision Notes
Biological Molecules: Revision Notes
Condensed recall notes on carbohydrates, lipids, proteins, DNA and the food tests for Cambridge O Level Biology 5090.
Cambridge · O LEVELS
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Practice Questions
Cell Structure and Organisation: Practice Questions
Original exam-style practice questions with full worked answers on cells, organelles, specialisation and levels of organisation.
Cambridge · O LEVELS
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Revision Notes
Cell Structure and Organisation: Revision Notes
Condensed recall notes on animal, plant and bacterial cells, specialisation and levels of organisation for Cambridge O Level Biology 5090.
Cambridge · O LEVELS
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Practice Questions
Enzymes: Practice Questions
Original exam-style practice questions with full worked answers on enzyme action, temperature, pH, denaturation and enzyme uses.
Cambridge · O LEVELS
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Revision Notes
Enzymes: Revision Notes
Condensed recall notes on enzyme action, the lock-and-key model and the effects of temperature and pH for Cambridge O Level Biology 5090.
Cambridge · O LEVELS
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Study Guides
Biological Molecules
The chemical elements and building blocks of carbohydrates, lipids, proteins and DNA, and the food tests used to identify them, for Cambridge O Level Biology 5090.
Cambridge · O LEVELS
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Study Guides
Cell Structure and Organisation
Animal, plant and bacterial cell structure, cell specialisation, and the organisation of cells into tissues and organs, for Cambridge O Level Biology 5090.
Cambridge · O LEVELS
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Study Guides
Enzymes
Enzymes as biological catalysts, the lock-and-key model of enzyme specificity, and the effects of temperature and pH on enzyme activity, for Cambridge O Level Biology 5090.
Cambridge · O LEVELS