Green plants absorb and convert light energy into chemical energy for use during photosynthesis, a process by which plants make sugar.
Green plants do not absorb green light, though. Green light is reflected, thereby making leaves appear green.
Two students investigated the effects of different colored lights on photosynthesis. They created a filter that blocked green light, a filter that blocked red light, and a filter that blocked all light. Each filter was placed on a leaf, as shown in Figure 1. The rate of photsynthesis in the various portions of the leaf was determined indirectly by measuring starch (sugar) concentration.
The results are summarized in Table 1.
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According to the passage, it can be inferred than pumpkins reflect which color light?CorrectIncorrect
Based on the information in the passage and Table 1, the rate of photosynthesis in the portion of the leaf with the green filter was most likely the same as the untreated leaf because:CorrectIncorrect
Why was it necessary to include an untreated leaf in Experiment 1?CorrectIncorrect
According to the information in the passage and the results shown in Figure 1, the filter that blocked all light:CorrectIncorrect
The students performed a second experiment using a filter that blocked both red and green light, together. Based on the information in Table 1, the leaf portion with this new filter would have a measured starch concentration of:CorrectIncorrect