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Plant Nutrition

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In a photosynthesis experiment, a plant is left in bright sunlight for several hours. A leaf is then removed from the plant and tested for starch, using iodine solution. The diagram shows the leaf f... rom the plant that was used in the experiment. white area green area Which diagram shows the result of the experiment? A B C D iodine solution turns blue /black iodine solution stays brown key 2 Which substance, needed for protein synthesis, is carried into a leaf from the stem? A carbon dioxide B nitrate C oxygen D starch 3 Which two substances are the products of photosynthesis? A carbon dioxide and glucose B carbon dioxide and water C oxygen and carbon dioxide D oxygen and glucose Save My Exams! – The Home of Revision For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/4 Four test-tubes are set up as shown in the diagram and left in full sunlight. After several hours, which test-tube contains the most dissolved oxygen? A B C D water snail water water pond pond weed weed water snail 5 Plants manufacture their own supplies of carbohydrate. What are the raw materials and the waste product of this process? raw materials waste product A B C D carbon dioxide and chlorophyll carbon dioxide and water oxygen and chlorophyll oxygen and water oxygen oxygen carbon dioxide carbon dioxide 6 A plant with variegated leaves has the starch removed from its leaves by placing it in a dark cupboard for 48 hours. Black paper is then fixed on one leaf as shown and the plant is exposed to light. After 24 hours, which part of the leaf contains starch? green region white region black paper on both sides of leaf A B C D Save My Exams! – The Home of Revision For more awesome GCSE and A level resources, visit us at www.savemyexams.co.uk/7 A plant with striped leaves similar to the one below was kept in bright light for six hours. white stripe green stripe A leaf was taken from the plant and the chlorophyll removed. It was then tested for starch using iodine solution. Which diagram shows the result of the test? A yellow-brown blue-black white blue-black B blue-black green C D yellow-brown green 8 Apparatus was set up as shown. air sodium hydroxide solution flask X black paper plant flask Y to pump limewater limewater Sodium hydroxide removes carbon dioxide from the air. Limewater goes cloudy if carbon dioxide is bubbled through it. What happens to the limewater in flasks X and Y when the pump is switched on? flask X flask Y A goes cloudy goes cloudy B goes cloudy stays clear C stays clear goes cloudy D stays clear stays cl [Show More]

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