Plants-General information

*Plants probably evolved from algae.

*There is an alternation of generations-meaning 2 phases in life cycle.

*1st land plants had to be able to survive harsh conditions-thus they developed a ____________________-waxy,waterproof layer that coats the parts of plant exposed to air---helps keep it from drying out

Cuticle

2 categories of plants:refers to presence or absence of ____________-tissue --specialized for the long distance transport of water and solutes through a plantNonvascular-

mosses,liverworts----more dependent on ample water/no true roots,leaves or stems,but have structures for similar functions--____________

Vascular tissue

rhizoids

Vascular plants - 90 % of modern plants---absorb water through roots----therefore can inhabit dryer areas than nonvascular

-________________control the size of pores on plants and balance the movement of CO2 into leaf w/outgoing water

Guard cells

Reproduction,in generalVascular plants-spores or

_______-protective structure that contain a plant embryo and stored food-results from sexual reproduction and form after sperm and egg unite

----_________structure that develops in plants w/flowers and contains the seeds

---wind,animals help diperse seed as well as “wing-like structures on seeds

seed

fruit

classification

_______________-vascular plants producing seeds and lacking a fruit-eg. Conifers

_______________-vascular plants that produce seeds enclosed and protected by fruit

gymnosperms

angiosperms

_________________--angiosperm w/ one cotyledon_________________--- angiosperm w/ 2 cotyledons

monocotsdicots