what is the rolee of cotyledons
Answers
A cotyledon is part of the embryo within the seed of a plant. Often when the seed germinates, or begins to grow, the cotyledon may become the first leaves of the seedling. Botanists use the number of cotyledons present in the seed of a plant as a means of classification. Monocots are seeds that have only one cotyledon, while dicots are plants with two cotyledons. The cotyledons are formed during the process of embryogenesis along with the roots and shoots of the plant prior to germination.
In dicot plants, the cotyledons are photosynthetic and function like leaves. The cotyledons are the first part of the plant to emerge from the soil. Some cotyledons last only days after growing from the soil and give way for other plant growth, while some cotyledons can last for years. The cotyledons are important for the new plant as it begins to grow because they contain the stored food reserves from the seed to give the plant its initial burst of energy to grow..
The cotyledon is the part of the embryo that lies in the seed of a plant. It becomes the embryonic first leaves of a seedling when germination occurs. Various other parts of a seed exist, including the endosperm -- the food supply that is contained in the seed and sometimes specifically in the cotyledon. In addition, the hypocotyl is the part that develops into the stem, while the plumule is the leaf in the plant's early development.
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