lives and reproduces within 1 year
lives 2 years and reproduces in 2nd year
lives and reproduces many years
coating that protects embryo
provides nutrients to embryo
main site of photosynthesis
connects leaf to stem
cells that generate new cells that will later differentiate
growth in width
meristem found in tips of roots and shoots
make new xylem and phloem
makes new cork, which becomes part of bark
pollination and double fertilization
Pollen is carried from anther to stigma of a flower of same species. A pollen tube grows toward the ovary through the style. When the pollen reaches to ovary it releases two sperm: one fertilizes the egg to from zygote, the other fertilizes the large central cell to form the endosperm.
female part of flower
transports sperm to egg
protects ovules and becomes fruit
male part of flower
asexual reproduction in plants
-offspring are clones
-drop stems or other shoots that establish new roots and become clones
-send out shoots from the base of their trunks that go underground and create a new clone
-wind: need many seeds, can be distributed long distances
-animal: food for animal or can travel on animal
-water: is carried by water, ex. coconut
embryo in seed begins to grow again and develop into a plant
environmental conditions cue germination
-usually warm, moist soil
-some only germinate after going through a cold place
-some require the heat of a fire
function of roots
anchor a plant and absorb minerals and water
function of shoots
transport water & nutrients from the roots to the leaves and food from the leaves to the roots
3 different tissue types
1. Dermal tissue: outer covering
2. Vascular tissue: transports substances
3. Ground tissue: fills spaces between dermal and vascular tissue
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