CAPSforge · Grade 10 Life Sciences · Term 2
Learn the molecules that build cells, practise food tests, master biological terms, and complete a daily CAPS-style Section A quiz.
Molecules for Life
Cells are mostly made from water, mineral salts, carbohydrates, lipids, proteins, nucleic acids and vitamins. Use the cards below to connect each molecule’s structure to its function.
Tap a molecule to flip it. The back shows its building blocks and the reason it matters in living cells.
Mobile SVG Diagram Viewer
These SVG diagrams stay sharp when viewed on a phone. Tap a diagram to open it larger.
Terminology Bank
JSON-driven terms for Section A exam preparation. Search a word, process or function.
Practical Lab Guide
Use this section as a quick practical revision guide. Always follow teacher safety instructions and wear eye protection where chemicals or heat are used.
Reagent: Iodine solution.
Method: Add a few drops of iodine to the food sample.
Positive result: Yellow-brown iodine turns blue-black.
Conclusion: Starch is present.
Reagent: Benedict’s solution.
Method: Add Benedict’s solution and heat in a warm water bath.
Positive result: Blue changes to green, yellow, orange or brick-red depending on glucose amount.
Conclusion: Reducing sugar such as glucose is present.
Reagent: Biuret test: sodium hydroxide and copper sulphate solution.
Method: Add sodium hydroxide, then a few drops of copper sulphate and mix gently.
Positive result: Blue changes to purple or violet.
Conclusion: Protein is present.
Reagent: Ethanol and water, or brown paper for a grease-spot test.
Method: Shake food with ethanol, then add water.
Positive result: Milky white emulsion forms.
Conclusion: Lipid is present.
Daily Quiz Database
Each day has five biological-term questions. Type the correct term, check your answer, and earn reward points.