BIOLOGY 107

Photosynthesis Quiz

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1. Where is the starch located in reference to chlorophyll placement in the Coleus leaf?

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2. Name the technique for separating chlorophyll extract into its component pigments.


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3. In the phenol red experiment, what gas were you measuring?


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4. What did the experiment demonstrate where you blew bubbles into a phenol red water solution, one tube with Elodea and the other tube without?


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5. Why was one tube not provided with a sprig of Elodea?


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6. Which single wavelength or color is most absorbed by chlorophyll ?


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7. Which single wavelength or color is absorbed the least by chlorophyll?


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8. What are the two ingredients that are used up in the process of photosynthesis?

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9. With high light intensities, photosynthesis might by inhibited. Why?


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10. What are two products of photosynthesis?

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11. Which molecules move further on the paper strip, the lighter weight ones or the heavier weight one?

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12. Which color is least likely to be used by plants for photosynthesis?


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13. What color would you perceive if the wavelength were 650 nm long?


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14. The Elodea plant that was in the dark, didn’t change color. Why not?


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15. The approximate color of the short wavelengths (420nm) are more likely to be: (green, red or blue?)

 

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