Photosynthesis Lab .pdf - Name Date Student Exploration...

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2019 Name: ______________________________________ Date: ________________________ Student Exploration: Photosynthesis Lab Vocabulary: carbon dioxide, chlorophyll, glucose, limiting factor, nanometer, photosynthesis, wavelength Prior Knowledge Questions (Do these BEFORE using the Gizmo .) To survive, what gas do we need to breathe in? ___________________________________ Where is this gas produced? __________________________________________________ Gizmo Warm-up During photosynthesis , plants use the energy of light to produce glucose (C 6 H 12 O 6 ) from carbon dioxide (CO 2 ), and water (H 2 O). Glucose is a simple sugar that plants use for energy and as a building block for larger molecules. A by-product of photosynthesis is oxygen. Plants use some of the oxygen they produce, but most of it is released. In the Photosynthesis Lab Gizmo, you can monitor the rate of photosynthesis by measuring oxygen production. 1. Observe the left pane closely. What do you think the bubbles are? ____________________ 2. Select the BAR CHART tab. On the graph, notice the Oxygen production bar. Move the Light intensity slider back and forth. How does light intensity affect oxygen production? _________________________________________________________________________ 3. Experiment with the vertical Temperature slider (upper left) and the CO 2 level slider. A. How does temperature affect oxygen production? ___________________________ ___________________________________________________________________ B. How does CO 2 level affect oxygen production? ______________________________ ___________________________________________________________________ C. How does oxygen production relate to the rate of photosynthesis? ______________ ___________________________________________________________________
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