O Level Biology Weekly Quiz- Updated 2023 View Larger Image Free Quiz This quiz is free feel free to take it as many times as you like. 1. Salt movement in a cell The arrows show the movement of salts into a cell. Which describes the movement of the salts? active transport against the concentration gradient diffusion down the concentration gradient active transport down the concentration gradient diffusion against the concentration gradient 2. What are some of the end products and effects of anaerobic respiration in muscle? carbon dioxide and muscle contraction lactic acid and oxygen debt water and muscle relaxation ethanol and loss of coordination 3. Cross section of a leaf Where in the leaf does gaseous exchange occur? 1 and 3 1 and 2 2 and 3 3 and 4 4. Where in the alimentary canal is most water absorbed? colon stomach ileum oesophagus 5. Diagram showing a cell This diagram shows a cell. Which parts are the cell membrane cell wall cytoplasm respectively 2, 1, 4 1, 2, 4 2, 1 , 3 1, 2, 3 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? 0.0 mol 0.2 mol 0.5 mol 0.3 mol 7. As a seed begins to germinate, it uses enzymes to speed up the rate of transpiration osmosis photosynthesis digestion 8. 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? daylight and respiration daylight and photosynthesis darkness and transpiration darkness and respiration 9. 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? active transport of water into the root hairs photosynthesis in the leaves of the plant evaporation of water from the flask transpiration from the leaves of the plant 10. 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? reducing sugar and protein fat and starch fat and protein reducing sugar and starch 11. 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 2, 1, 4 1, 2, 4 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) Quick NetOne, Econet, And Telecel Airtime Recharge Number to recharge: Airtime amount ($): EcoCash number: Buy {{error_message}} {{error_message}} By garikaib|2022-09-15T12:32:36+02:00January 24th, 2023|Exams, Ordinary Level Exams|Comments Off on O Level Biology Weekly Quiz- Updated 2023 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 June 2008 Business Studies Paper 1 (Without Answers)- Updated 2023 June 2008 Business Studies Paper 1 (Without Answers)- Updated 2023 The Enterprising Environment Quiz- Updated 2023 Gallery The Enterprising Environment Quiz- Updated 2023 June 2008 Business Studies Paper 2 (Without Answers)- Updated 2023 June 2008 Business Studies Paper 2 (Without Answers)- Updated 2023 O Level Commerce Quiz- Updated 2023 Gallery O Level Commerce Quiz- Updated 2023 June 2014 A Level Business Studies Paper 2 Page 1 (Without Answers)- Updated 2023 June 2014 A Level Business Studies Paper 2 Page 1 (Without Answers)- Updated 2023