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
Find the explanation you need. See it, understand it, then try it yourself.
Choose a different syllabusStart with a lesson, jump to practice, or scan a summary. Your place and answers stay on this browser.
01
Recognise cells and their structures, read real micrographs and explain how specialised cells do their jobs.
02
Predict diffusion and osmosis, explain changes in cells and make sense of tissue investigations.
03
Connect molecules to their roles, read food-test evidence and explain how enzymes work.
04
Follow digestion and nutrient use, then see how the liver and pancreatic hormones control blood glucose.
05
Trace circulation, match blood components to their jobs and explain how the heart pumps in one direction.
06
Connect airways and gas exchange to energy release, then explain smoke effects and recovery after exercise.
07
Separate cause, symptoms and transmission, then explain how vaccines and antibiotics work differently.
08
Read leaf and stem sections, explain photosynthesis and follow water and sugars through a plant.
09
Read feeding relationships and pyramids, trace carbon and energy, and evaluate actions that reduce warming.
10
Connect DNA, genes and chromosomes, use complementary base pairing and follow information into a polypeptide.
11
Follow gametes and early development, understand the menstrual cycle and explain HIV transmission accurately.
12
Use genetic language and diagrams to predict offspring, interpret chance variation and distinguish kinds of mutation.