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NOVA - Official Website | Illuminating Photosynthesis

by Theresa Knapp Holtzclaw

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275 Words


Photosynthesis - Song with Free Worksheets and Activities

I will
then flood the elodea wit light as in the preliminary experiment to
get it photosynthesizing for about ten minuets, after I will set the
light intensity to 80mv using a comparator as light intensity must be
keep constant to ensure accurate result.

This song makes it easy to learn how photosynthesis works

The uptake of carbon dioxide is an indication that photosynthesis is occurring within the chloroplasts of a leaf. The reactions that fix carbon into organic compounds depend on the products of the light reactions and are therefore dependent on the absorption of light by pigments. While sunlight is composed of many different wavelengths of light, those wavelengths are not equally available to a plant. This investigation compares the amount of photosynthesis that occurs when different colors of light are provided to a plant.

Photosynthetic Efficiencies of LEDs: Results of Short …

The speed of light in a vacuum is defined to be exactly 299,792,458 m/s (approx

You will either measure the respiration/ photosynthesis rate of Elodea under two of
five colors of lights (blue, green, orange, red, and white) (Parts A & B); or, you will record the
absorption spectrum for Elodea (Parts C & D), and measure the respiration/ photosynthesis rate
of Elodea under one of five colors of lights (blue, green, orange, red, and white) (Parts A & B).
Each color of light (blue, green, orange, red, and white) represents one treatment.

If the wavelength available to the plant affects
photosynthesis, then we would expect to see a difference in the photosynthetic rates
produced by the different colors of light, and therefore a measurable difference in the
amount of O2 produced during photosynthesis.
Total or GROSS photosynthesis, is the total amount of carbon fixed or oxygen
released by a plant in the light.

Plant Energy Transformations-Photosynthesis - …

Does light intensity affect the rate of ..

Phycobilins absorb in
Biol 171L – FA15 Effect of Light Color on Photosynthesis 7-4
the green and orange portion of the spectrum and are important for allowing marine and aquatic
plants to harvest the wavelengths not filtered out by the water.
The process of photosynthesis involves the use of light energy to convert carbon dioxide
and water into sugar, oxygen, and other organic compounds.

Does light intensity affect the rate of photosynthesis
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  • of light indicating inaccuracy of results.


  • Pigments absorb light used in photosynthesis

    01/01/2011 · Explore how photosynthesis works by helping the process along in this game.

  • and the reflected light is what we see as color.

    Grow light - Wikipedia

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