KS3 Photosynthesis & respiration Test Paper with Mark Scheme

A 40-mark KS3 biology test paper on photosynthesis & respiration for Years 7 to 9: 22 questions to do in 40 minutes, building from quick multiple choice to longer written answers, with the hardest questions in a short stretch section at the end.

What's covered

Photosynthesis: the reactants and products, the word equation, chloroplasts and chlorophyll, and why light is the energy source, not an ingredient. Leaves: a microscope section to label (cuticle, palisade layer, air space, stoma), adaptations and why stomata close. Roots, water and minerals: xylem, root hair cells, a mineral deficiency and van Helmont’s willow. Investigating photosynthesis: the starch test with its safety point, two leaves to shade for starch, and the pondweed experiment to read (variable, anomaly, conclusion). Respiration: the aerobic word equation and anaerobic respiration in muscles and yeast. Stretch: a rate graph and limiting factors, gas exchange by day and night, and a starch-test prediction.

What's included

• A cover page with space for name, class and date, and a list of what the paper covers
• 22 questions worth 40 marks, graded from easier to harder, with diagrams to label and data to read
• Lined space for every written answer
• A complete mark scheme in plain English: what earns each mark, so you can mark it with confidence even if science was a long time ago

Who it's for

Pupils in Years 7 to 9 checking a whole unit before a test, parents helping at home, and tutors and teachers who want a ready-made end-of-unit assessment. The free revision notes and homework sheets for every topic in the unit are at cartana.org/science.

A print-ready A4 PDF, 12 pages. Download it straight after paying.