O Level Biology Weekly Quiz- Updated 2024 View Larger Image Free Quiz This quiz is free feel free to take it as many times as you like. 1. Diagram showing a cell This diagram shows a cell. Which parts are the cell membrane cell wall cytoplasm respectively 1, 2, 4 1, 2, 3 2, 1 , 3 2, 1, 4 2. Salt movement in a cell The arrows show the movement of salts into a cell. Which describes the movement of the salts? diffusion down the concentration gradient active transport against the concentration gradient active transport down the concentration gradient diffusion against the concentration gradient 3. Where in the alimentary canal is most water absorbed? ileum stomach oesophagus colon 4. Cross section of a leaf Where in the leaf does gaseous exchange occur? 3 and 4 1 and 2 1 and 3 2 and 3 5. Plants left in sunlight The diagrams show a plant in a flask of water. It is left for six hours on a warm and windy day in bright sunshine. Which process explains the result shown in diagram 2? photosynthesis in the leaves of the plant transpiration from the leaves of the plant active transport of water into the root hairs evaporation of water from the flask 6. Cylinders of potato tissue were placed in different concentrations of a sugar solution. The graph shows the percentage change in length of the cylinders of potato tissue. Which solution has the same water potential as the potato tissue? 0.5 mol 0.0 mol 0.3 mol 0.2 mol 7. As a seed begins to germinate, it uses enzymes to speed up the rate of osmosis digestion transpiration photosynthesis 8. Milk produces a red precipitate when heated with Benedict’s solution. A purple colour develops when the biuret test is used on milk. Using these results only, which nutrients does milk contain? fat and starch reducing sugar and protein reducing sugar and starch fat and protein 9. Diagram showing a cell This diagram shows a cell. Which parts are the cell membrane cell wall cytoplasm respectively 1, 2, 3 2, 1 , 3 1, 2, 4 2, 1, 4 10. Concentration of Carbon Dioxide The graph shows the concentration of carbon dioxide in the air surrounding a plant measured over 24 hours. Which explains the carbon dioxide concentration at time X? darkness and respiration daylight and respiration darkness and transpiration daylight and photosynthesis 11. What are some of the end products and effects of anaerobic respiration in muscle? lactic acid and oxygen debt water and muscle relaxation ethanol and loss of coordination carbon dioxide and muscle contraction Loading … Question 1 of 11 To read Biology Notes here Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) By garikaib|2022-09-15T12:32:36+02:00January 24th, 2023|Exams, Ordinary Level Exams|Comments Off on O Level Biology Weekly Quiz- Updated 2024 Share This Story, Choose Your Platform! FacebookTwitterEmail About the Author: garikaib He holds an Honours in Accountancy degree from the University of Zimbabwe. He is passionate about technology and its practical application in today's world. Related Posts November 2009 English Language Paper 1 (Without Answers)- Updated 2024 November 2009 English Language Paper 1 (Without Answers)- Updated 2024 June 2014 English Language Paper 1 (Without Answers)- Updated 2024 June 2014 English Language Paper 1 (Without Answers)- Updated 2024 November 2013 Economics Paper 3 (Without Answers)- Updated 2024 November 2013 Economics Paper 3 (Without Answers)- Updated 2024 O Level History Weekly Quiz- Updated 2024 Gallery O Level History Weekly Quiz- Updated 2024 November 2013 Commerce Paper 2- Updated 2024 November 2013 Commerce Paper 2- Updated 2024