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Following new curriculum standards for High
School Life Science studies, this video program takes an in-depth look at how plants
depend on light and water to survive. Plants are the starting point in the food chain. All
other life forms depend directly or indirectly on plants. And, all plant life depends on
photosynthesis.
Viewers will learn the mechanics of photosynthesis and the roles of water, CO2,
chlorophyll, light, oxygen, glucose and glucose storage (starch). Next, the products of
photosynthesis are studied: the role of glucose in powering cellular respiration; and, the
development of special organs to store starch. Experiments are presented demonstrating how
to test for the presence of starch with iodine and how to measure the level of oxygen
produced in photosynthesis.
Cellular respiration is the constant process of breaking down glucose to release energy.
It occurs in all cells all the time. Cellular respiration is compared to photosynthesis
and the chemical interactions of the two processes are discussed and illustrated using
laboratory experiments.
The role of water in plant survival is studied. Transportation, transpiration and
translocation are defined and illustrated. The role of xylem and phloem in water and
nutrient movement is demonstrated using capillary tubes and dyes. Osmosis, the process of
diffusion of water into and out of cell membranes, is illustrated. Finally, the roles of
roots and leaves are examined to understand how water moves into the plant and is
transpired into the atmosphere.
Running Time: 20 Minutes
Close Captioned
Includes: Video and Teacher's Resource Book
This item is available in the following formats:
ORDER CODE: HRM3K592V
PRICE: $149.95 VIDEO
Add item to Shopping Cart!ORDER CODE: HRM3K592DV-DVD
PRICE: $149.95 DVD
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