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A series of questions and diagrams related to the process of photosynthesis and autotrophic nutrition in green plants. It covers topics such as the role of inorganic molecules, the net flow of gases, the function of chloroplasts, and the production of glucose.
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What is the main function of the cells indicated by the black pointer? A. regulate the rate of gas exchange B. store food for winter dormancy C. undergo mitotic cell division D. give support to the veins in the leaf
An organism was added to a test tube containing water, which was then sealed and placed in sunlight. The graph shows an increase in the oxygen content of the test tube over a period of time. Which type of organism was most probably added to the test tube? A. fresh-water animal B. green alga C. ameba D. virus
Which statement best explains the results of this experiment? A. The rate of photosynthesis is affected by variations in the light. B. In all environments light is a vital resource. C. The activities of bacteria and algae are not related. D. Uneven numbers and types of species can upset ecosystem stability.
Since oxygen gas is being released, it can be inferred that the plant is A. producing glucose B. making protein C. releasing energy from water D. carrying on active transport
Which row in the chart correctly identifies the letters in the diagram? Row A.
ribosome B oxygen
carbon dioxide
water B. mitochondrion water oxygen protein C. nucleus nitrogen carbon starch D. chloroplast carbon dioxide water glucose
enzymes oxygen carbon glucose dioxide carbon glucose oxygen enzymes dioxide glucose enzymes oxygen carbon dioxide oxygen glucose carbon dioxide enzymes
Answer Key