Plant Science Unit 3 Lesson 3: Monocotyledons vs.

Plant Science Unit 3 Lesson 3: Monocotyledons vs.

Plant Science Unit 3 Lesson 3: Monocotyledons vs. Dicotyledons Cotyledon What is a cotyledon?

A cotyledon is the fleshy structure within a seed that contains food for a developing embryo. Depending on the plant species, a seed may have one or two cotyledons. Monocotyledons A. A plant species producing seed with

one cotyledon is a monocotyledon, or monocot. 1. All grasses are monocots. Corn, wheat, oats, Bermuda grass, and sugarcane are examples of monocots. 2. Monocot plants have long, narrow leaves with parallel veins. All leaves branch from the main stem. 3. Stems are non-woody and tend to have a large area of pith in the center.

Dicotyledons B. A plant species producing seed with two cotyledons is a dicotyledon, or dicot. 1. All plants other than grasses are dicots. Soybeans, trees, lettuce, sunflowers, and petunias are examples of dicots. 2. Dicot plants have broad leaves with a net-type of

veins. 3. Stems are often long and branching. They may be woody or non-woody, depending on the plant species.

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