Notes 10-3 Seed Plants

Vascular Tissue Seed plants have vascular tissue to help support the upright body and to carry nutrients. 2 types: Phloem carries food Xylem carries water and minerals

Pollen and seeds Seed plants have pollen that contain the cells that will become sperm Pollen carried to egg Fertilization occurs and seed develops Seeds contain a young plant inside and provide protection

Seed structure 3 parts: Embryo- young plant that develops from zygote, includes the cotyledon (seed leaves) and stem and root Stored food- sometimes in the cotyledon and sometimes outside of it Seed coat-protects food and seed for long period of time, sometimes surrounded by fruit

Seed Dispersal After seeds are formed they are scattered far from where they are produced by wind, animals, water, and ejection

Germination Seeds will germinate when conditions are right Embryo grows again and pushes out seed Root grows downward, stem grows upward Called a seedling when you can see leaves