Plants
Feb 24, 2016
Plants
Bellwork
• Describe the weirdest plant you have ever seen?
Rat eating pitcher plant!
Parachute Flower
http://webecoist.momtastic.com/2009/12/21/15-rare-exotic-amazing-plant-species/
Pelican Flower (smells really bad)!
Collapsing planthttp://webecoist.momtastic.com/2009/12/21/15-rare-exotic-amazing-
plant-species/
Hydnora Africana (smells like feces)
Dead Horse Arum Lily (smell is in the name!)
Fly paper plant
Welwitschia mirabilis(Over 2000 years old!)
Water Wheel Plant(Like the Venus fly trap)
Corpse FlowerAll in a name;-)
Characteristics of plants
• 1: make their own food• 2: cells have cell walls outside
their cell membranes• 3: reproduce with a two part
life cycle
Two part life cycle
• 1st phase: spore producing phase is the sporophyte• 2nd phase: the sex-cell (also
called gametes) producing phase of a plant is called gametophyte
Two main groups
• Vascular and Nonvascular• Nonvascular: plants that do not have
vessels to transport materials throughout the plant• Materials are moved around through
diffusion and osmosis• Most nonvascular plants are small
Vascular
• Vascular: plants that have vessels to transport materials throughout the plant.• Like water pipes in your house• Some are very small, some are very
large
Read “Focus on George Washington Carver”
• You are George Washington Carver, and you are veryyyyyy old
• You decide to write a short biography about your life and accomplishments.
• Write this biography from his perspective, with a minimum length of 4 paragraphs.
• Be creative!
Vascular
• Two groups:• Those that produce with seeds and
those that do not.• Those that don’t use seeds produce
through spores• Spores are small reproductive cells
that can develop into adults without fusing with an adult
Spores
Vascular Plants
• Plants that reproduce with seeds are divided into 2 groups:– 1. Gymnosperms: produce seeds but no flowers• Include cycads, ginkgoes, gnetophytes, conifers
– 2. Angiosperms: produce seeds in flowers• Seeds are enclosed in protective cases called
fruit• All agricultural crops, flowers, shrubs, trees,
weeds
Angiosperms
Life spans
• Vascular plants with seeds are categorized based on their life span.–Annuals: complete their life cycle in one
growing season. Annus= year: flowers, herbs, vegetables–Biennials: complete their life cycle in two
growing seasons: carrots, celery, etc.–Perennials: live through many growing
seasons. Per=through: most trees
Needs of Plants
• Soil• Water• Sun’s energy• Clean air• Space
Make a Visual Glossary
• Read section 5• Define, create an illustration,
and give an example (if provided) for each bold term in the section.