01
Cell structure and organisation
Recognise cells and their structures, read real micrographs and explain how specialised cells do their jobs.
Upper secondary / K327 / K328 / 2027
G3 Combined Biology
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12 chapters / 72 lessonsYour place and answers stay on this browser.
02
Movement of substances
Predict diffusion and osmosis, explain changes in cells and make sense of tissue investigations.
03
Biological molecules
Connect molecules to their roles, read food-test evidence and explain how enzymes work.
04
Nutrition in humans
Follow digestion and nutrient use, then see how the liver and pancreatic hormones control blood glucose.
05
Transport in humans
Trace circulation, match blood components to their jobs and explain how the heart pumps in one direction.
06
Respiration in humans
Connect airways and gas exchange to energy release, then explain smoke effects and recovery after exercise.
07
Infectious diseases in humans
Separate cause, symptoms and transmission, then explain how vaccines and antibiotics work differently.
08
Nutrition and transport in flowering plants
Read leaf and stem sections, explain photosynthesis and follow water and sugars through a plant.
09
Organisms and their environment
Read feeding relationships and pyramids, trace carbon and energy, and evaluate actions that reduce warming.
10
Molecular genetics
Connect DNA, genes and chromosomes, use complementary base pairing and follow information into a polypeptide.
11
Reproduction in humans
Follow gametes and early development, understand the menstrual cycle and explain HIV transmission accurately.
12
Inheritance
Use genetic language and diagrams to predict offspring, interpret chance variation and distinguish kinds of mutation.