Biology Photosynthesis Lab assignment

Exercise 10
PHOTOSYNTHESIS Student Learning Outcomes At the completion of this exercise you should: (1) Be able to define the following linear metric system units: meter, centimeter, millimeter,
micrometer, nanometer, and Angstrom. (2) Be able to describe, using both nanometers and color descriptions, the wavelengths of
sunlight that the human eye can see. (3) Be able to describe how the paper chromatography technique can be used to separate out
the different pigments present in plant leaves. (4) Be able to describe, using both nanometers and color descriptions, the most important
wavelength of sunlight used in photosynthesis. (5) Be able to describe an experimental design that could be used to measure the relationship
between light intensity and the rate of photosynthesis. (6) Be able to diagram the summary equation for photosynthesis. I. The Nature of Light Striking the Surface of a Leaf Sunlight is a relatively small but very important part of the vast electromagnetic spectrum of energy. Visible light, together with a small amount of invisible radiation at its boundaries, is the only part of this spectrum which is useful to life. Close examination of visible natural light reveals that it, too, contains a spectrum, which is revealed to our eyes in the colors of a rainbow. Two physical properties of light are of special interest to biologists: wavelength and energy. Procedure: 1. Point the slit end of the