07 CO2 CycleGLX SV

07 CO2 CycleGLX SV - Activity 07 PS-2820 Plant Respiration...

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Activity 07 PS-2820 Biology with Xplorer GLX © 2005 PASCO p. 41 Plant Respiration and Photosynthesis Biology: Respiration, photosynthesis DataStudio GLX setup file: co2 cycle.glx Qty Equipment and Materials Part Number 1 PASPORT Xplorer GLX PS-2002 1 PASPORT CO 2 GAS Sensor PS-2110 1 PASPORT Extension Cable PS-2500 1 Sampling Bottle (included with the sensor) 1 Box, cardboard (large enough to cover the Xplorer GLX and sensor) 1 Cloth, opaque (large enough to cover the box) 1 Lamp, 100 W (or equivalent) 1 Mint plant, small 50 mL Water Purpose The purpose of the activity is to explore the cycle of carbon dioxide gas as a plant undergoes cellular respiration in darkness and cellular respiration and photosynthesis in bright light. Background The process of cellular respiration provides energy for the cell to use. During cellular respiration, the stored energy in carbohydrates is released along with carbon dioxide gas. The overall reaction for cellular respiration is: C 6 H 12 O 6 + 6 O 2 mitochondria  6 CO 2 + 6 H 2 O + ATP ( energy ) carbohydrate + oxygen --------------> carbon dioxide + water + energy Cellular respiration occurs continuously in living organisms – even in darkness – but photosynthesis requires light energy. During photosynthesis, carbon dioxide from the air is absorbed by green plants and converted to carbohydrate molecules that store energy captured from sunlight by chlorophyll in the plants. The entire photosynthetic pathway is a complex series of enzyme transformations that take place in chloroplasts. During the transformation, hydrogen from water is added to molecules of carbon dioxide to make carbohydrates. The generalized equation for this process is given below: 6 CO 2 + 6 H 2 O + light chloroplast  C 6 H 12
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This note was uploaded on 12/08/2011 for the course BIOL 1441 taught by Professor Fredrick during the Fall '08 term at UT Arlington.

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07 CO2 CycleGLX SV - Activity 07 PS-2820 Plant Respiration...

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