
Gr.10 Biology assessment
Quiz by Najah Hammoud
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13 questions
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- Q1Autotrophs are plants that :do not undergo photosynthesisare non-cholorphyllicare chlorophyllic and undergo photosynthesis to make their own foodobtain materials mainly form substances manufactured by other organisms60s
- Q2Knop's liquid :is not important for growth and development of green plantsis vital for the development of fungiensures the complete growth and development of a chlorophillic plant even without soil60s
- Q3Iodine tests are used to test for:carbon dioxide gasstarch in plants and foodReducing sugarsproteins45s
- Q4When testing a leaf for starch, the leaf must be boiled in alcohol as seen in the picture above. Explain why is this step important?to help the plant start photosynthesis reactionfor other reasonsto dissolve the chlorophyllto dissolve the starch60s
- Q5Photosynthesis is a chemical reaction that:uses oxygen gas and glucose in presence of sunlight to produce water and carbon dioxide gasuses water and carbon dioxide gas in presence of sunlight to produce oxygen gas and glucoseuses minerals and glucose to produce oxygen and starch60s
- Q6The following organelle is called:mitochondriachlorophyllchloroplastvacuole45s
- Q7The two main functions of chlorophyll are:absorbs carbon dioxide gas and release oxygen gasabsorbs sunlight energy and give the plant its green colorabsorbs sunlight and carbon dioxide gas60s
- Q8The first organic molecules synthesized during photosynthesis in Chlorophyllic plants are:carbohydrateslipidsproteins45s
- Q9Which of the following plants will show a dark blue color when tested with iodine?none of the plantsplant 1plant 2120s
- Q10The experiment in the figure studies the importance of:light factor in photosynthesiswater factor in photosynthesiscarbon dioxide gas factor in photosynthesis60s
- Q11Propose a title for the graph above.The variation of time ( in hours)as a function oxygen gas produced (in ml) when being exposed to light and darkness.The variation of oxygen gas produced (in ml) as a function of exposure to light and darkness.The variation of oxygen gas produced (in ml) as a function of time( in hours) when being exposed to light and darkness.60s
- Q12The decrease in volume of oxygen gas in obscurity( darkness) shows that:The pant is undergoing cellular respiration and absorbing oxygen gasThe pant is undergoing cellular respiration and releasing oxygen gasThe plant is undergoing photosynthesis and and absorbing oxygen gas120s
- Q13The increase in the volume of oxygen gas in light shows that:The pant is undergoing photosynthesis and releasing oxygen gasThe pant is undergoing cellular respiration and releasing oxygen gasThe pant is undergoing cellular respiration and absorbing oxygen gas120s