Transcript Plants-General information

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 plant
Nonvascularmosses,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 general
Vascular 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
dicots
monocots