UT Arlington NURS 3365 - lab-write-up (5 pages)

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lab-write-up



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lab-write-up

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Pages:
5
School:
University of Texas at Arlington
Course:
Nurs 3365 - Pharmacology in Nursing Practice
Pharmacology in Nursing Practice Documents

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Sahlea Tubbeh Period 2 I Title Plant Growth with and without Light II Introduction Plants are the most important thing on the planet They provide oxygen for animals and humans and cleanse the air though an important process called photosynthesis This experiment tests if pinto bean seeds germinate better in the light or in the dark Germination is the beginning of the development of the embryo into a new plant Before the seed begins to germinate it is in state of dormancy or inactivity Dormancy ends when the seed is in a favorable temperature 25 degrees Celsius to 30 degrees Celsius and has absorbed a sufficient amount of water and oxygen There are many steps the seed goes through in the process of germination The first step is when the outer shell of the seed opens The second step is when the part of the seed called the radicle grows down into the soil and develops into the root The hypocotyl part of the stem that is nearest to the seed also emerges and grows into the soil and forms what is called the hypocotyl arch When the hypocotyl emerges from the soil it becomes straight because it has been exposed to the light When the plant is exposed to the light then the chlorophyll in the leaves will be able to perform photosynthesis Cotyledons also play an important role in the process of seed germination A cotyledon is the structure in the embryo of the seed that stores and absorbs food for the developing plant before it can perform the process of photosynthesis Cotyledons protect the structure in the plant called the epicotyl When the hypocotyl emerges from the soil the cotyledons spread apart exposing the epicotyl which contains two primary leaves and the apical meristem The apical meristem produces cells for the developing plant When the energy stored in the cotyledon runs out the plant must be able to perform the process of photosynthesis The equation for photosynthesis is 6CO2 6H20 ENERGY C6H12O6 602 Glucose is made from this reaction and will 1 Sahlea Tubbeh Period



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