Structure of a Flowering Plant
Shoot System
This part of plant is above the ground.
Made up of stem, leaves, and structures for reproduction (angiosperms- flowers)
Stem
- Generally above the ground
- Support plant
- Separate the leaves
- Trees- trunk and all the branches
- Vines of grapes and ivy
- Leaf-bearing stalks of herbs and grasses
A Stem has Nodes and Internodes
- Nodes- Points where leaves are attached
- Internodes- Regions between nodes
Leaves- color green
Main photosynthetic organs in most plants
- Blade- thin, flattened; largest portion of leaf
- Petiole- stalk joins the leaf to a node of the stem
Lateral Bud
- Point just above where a leaf attaches to the stem.
- It is a young, inactive shoot and will eventually grow into a new leaf-bearing branch.
Shoot Apex
- At tip of stem where growth will occur
Flower
- Sexual reproduction organ in angiosperms
Fruit
- Mature ovary that acts as a vessel, housing and protecting seeds and helps disperse them from the parent plant.
Root System
This part of below the ground
- Anchors the plant in the soil
- Absorbs and transports water and minerals from soil
- Stores carbohydrates
Primary root
- Can be a fibrous root or a taproot
Lateral Roots
- Branch out to the sides
- Anchors and absorbs until a tangled mass of roots results