They can’t move.
Why are plants green?
Pigment used for photosynthesis
TWO main systems:
Stem, leaf, flower
Unlike animals, which are made up of many
Plants can make their own food (no need for
digestive or musculoskeletal system to obtain
But they still need to:
Move water and nutrients within their bodies
. 75% of modern medicines come from
Aspirin (Birch bark)
A tree sap that speeds healing
A compound that treats malaria
Right now many plants species are disappearing
before they can be studied.
Absorb water and minerals, store food,
What are some root vegetables? (The ones
where we eat the root, and not the shoots.)
2 main functions:
How? Which organelle is involved?
Which leaves do we eat?
What are flowers for?
Pollen = plant sperm
Ovary = contains eggs
After pollination (fertilization of eggs by pollen),
seeds are formed. Sometimes surrounded by
fruit. What might a fruit be for?
Occurs with the help of wind or animals.
Ex. insects, bats, birds
Trunks of trees
Contains vascular tissue connecting leaves
flowers, fruits to roots
Sugar cane, wood/paper, cork, linen (i.e.
3 main types:
Dermal tissue system
Outer surfaces of plant parts
Vascular tissue system
Tissues that transport water and nutrients
Ground tissue system
All other structures
layer of cells covering all non
tissues that produce bark
Transports water and minerals UP from roots to
stem and leaves
Mature cells not alive
Transports nutrients, sugars, hormones, and
water throughout the plant; UP and DOWN
Mature cells alive
Undifferentiated plant cells that can form any
kind of specialized tissue
Located at tips of roots and shoots (areas of rapid
Xylem rings show each
makes new phloem)
There are lots of fields that study plants.
the study of how indigenous (native)
plants are used by different cultures
plants with commercial
importance. Economic botany includes the study of
harmful and beneficial plants and plant products.
genetic engineering of plants
Natural resource management
responsible use of
and protection of natural resources