Biolab-rootsgrowfirs - holds the plant into the ground helping the plant stay in place once it breaks the ground Even more importantly this root

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Michael Glamore April 11 th , 2007 Roots Grow First Buried deep beneath the soil, a young plant has virtually no access to light. Without light, this plant is unable to undergo photosynthesis and instead must already have its nutrients stored within its tiny seed. Before running out of nutrients, the plant must establish a root structure for gathering water and nutrients reach the top of the soil and create a shoot structure to gather light. Interestingly, a seed seems to initially grow its root structure before its shoot. A large portion of the seed structure is dedicated to the cotyledon, which stores the nutrients and growth relating substances to the growing root-shoot structure. By giving a majority of the nutrients to the roots first, the plant is able to establish itself in the soil and create a base from which the shoot structure may grow. This root structure
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Unformatted text preview: holds the plant into the ground helping the plant stay in place once it breaks the ground. Even more importantly, this root structure is able to collect water and deliver this water to the rest of the plant. As most seeds are very dry, the water gives the plant the ability to undergo many metabolic processes. The water and extra nutrients provided by the root structure give the plant a longer amount of time to find the surface. Consider: If the shoot grew first, and it did not find the surface before the cotyledons ran out of nutrients, the plant would simply die. However, as the roots grow they collect more nutrients and prolong the plants ability to find the surface. In conclusion, the root growth is necessarily first in order for the plant to establish itself with a strong base and in order for the plant to begin collecting nutrients and water....
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This homework help was uploaded on 09/23/2007 for the course BIO G 104 taught by Professor Chen,k.c during the Spring '06 term at Cornell University (Engineering School).

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