|Notes: Plants General Introduction|
NEWSFLASH: Plants Colonize Land.
General Characteristics of Plants
are multicellular eukaryotic photoautotrophs.
have land adaptations such as a waxy cuticle and microscopic pores (stomata) to prevent drying out.
have some similarities to algae: chlorophyll a, b and carotenoids; carbohydrate of choice is starch; wall material is cellulose.
What's all this I hear about an Embryophyte Condition?
Once plants started going Onland there were 2 problems:
The Onland plants developed a solution:
How is this different from algae?
1. Developing algae are not kept inside the parent while still embryos. This is why land plants are called embryophytes. Duh!
Review Alternation of Generation.
Sporophytes and gametophytes are heteromorphic!
In all plants but mosses, the sporophyte is diploid!
Next: "Plants: Classification."