Getting Started 1. What is the function of a seed? 2. Make a list of seeds that are edible. 3. Why are some seeds a good source of nutrition?
Seed Fertilized egg (baby flower) Fertilized egg (baby flower) Plant embryo Plant embryo Parts of a Seed Cotyledon: seed leaves Cotyledon: seed leaves Seed coat: Seed coat: wall of embryo in monocot wall of embryo in monocot wall of embryo and endosperm wall of embryo and endosperm
Kingdom: Plantae Plantae Why? Why? Make own food - Autotrophic Make own food - Autotrophic Multicellular Multicellular
2 Types of Plants: 1. Nonvascular: no roots, stems, or leaves no vascular tubes mosses, hornworts, & liverworts
2. Vascular: have roots, stems, and leaves 2. Vascular: have roots, stems, and leaves vascular tubes (xylem & phloem) vascular tubes (xylem & phloem) Xylem transports H20 Xylem transports H20 Phloem transports sugar, proteins, etc Phloem transports sugar, proteins, etc can be seed or seedless can be seed or seedless
Seedless Vascular Plants: Reproduce with spores Ex = ferns
Seed Vascular Plants: 1. Phylum Gymnosperm (cone plants) 1. Phylum Gymnosperm (cone plants) Or…… Or……
2. Phylum Angiosperm (flowering plants)
Angiosperms: 1. Class Monocotyledon 1. Class Monocotyledon 2. Class Dicotyledon 2. Class Dicotyledon
Monocot VS Dicot Monocot VS Dicot 1 cotyledon 1 cotyledon Leaf veins parallel Leaf veins parallel Vascular bundles scattered arrangement Vascular bundles scattered arrangement Fibrous root system Fibrous root system Floral parts in multiples of 3 Floral parts in multiples of 3 2 cotyledons Leaf veins netlike Vascular bundles arranged in a ring Taproot system Floral parts in multiples of 4 or 5