Download Honors Biology I Ch 30 Plant Reproduction Seed Plants *seed

Honors Biology I
Ch 30 Plant Reproduction
Seed Plants
*seed plants are divided into 2 groups
1.




Gymnosperms:___________________________________________________________
Have seeds in _____________
Do not produce _____________
Have ______________ instead of _______________
Known as “________________”
2. Angiosperms:____________________________________________________________
________________________________________________________________________
 Majority of living plant species
 Produce _____________
 Flowers contain ovaries ________________________________________________
 ____________ enclosed in a ____________
A. Diversity of Angiosperms
Categorized in many ways
- ________________________________________________
- ________________________________________________
- ________________________________________________
1) Monocots
a) Contain __________ part to their seed
b) Vascular bundles are _______________
c) ______________ in narrow leaves
d) Flower parts in ______ or multiples of _______
Ex. _______________________________________________
2) Dicots
a) Contain _________parts to their seed
b) Vascular bundles are ____________
c) ________________in narrow leaves
d) Flower parts in ____________or multiples of _____________
Ex.___________________________________________________________
B. Sexual Reproduction in Flowering Plants
 Early land plants lacked leaves and roots (only stems)
 Leaves evolved from branches of stems, flowers-specialized branches and
specialized leaves
 Receptacle:
_______________________________________________________________
_______________________________________________________________
C. Flower Parts
Found in 4 concentric whorls/rings:
1) ___________- outer whorl, protects other parts of a developing flower
before it opens
2) Petals- _______________________________________________
3) _____________- male reproductive structures consists of another and
filament
a. anther- _________________________________________________
b. stalklike __________________________ that supports anther
4) Carpels-_______________________________________________
a) ________________-1 or more carpels fused together, main female
reproductive structure
- Base of postil contains the ovary, produces eggs in ovules
b) Style- ____________________________________________
- Tip is called the __________________, sticky or has hairs in
order to trap pollen grains
D. Pollination
- Occurs when pollen grain are transferred from ___________ to ___________
1) Self-pollination:
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
2) __________________________: involves 2 genetically different plants
3) Pollen Transfer
a. Dispersed by _________________________________
b. Small, lightweight, lack showy petals/ fragrance
c. Release of large amounts of pollen,
_________________________________________________________
_________________________________________________________
d. Animal transfer:
o Bright petal, distinctive odors
o __________________________________________
o __________________________________________
o __________________________________________
E) Fertilization
1) _______________________________________________
2) Pollen grain will germinate
a) germination:____________________________________
b) _______________________________________________
3) ___________________________will grow into an ovule
4) Sperm travel thru tube and ______________________________
5) _____________________________________________________
6) Eventually develops into embryo
F. Seeds and Fruit
1) Seeds are dispersed by:__________________________________
2) Gymnosperms-_____________________________________
3) Fruit: _________________________________________
- Protect seeds
- Aid in their dispersal
- Often delay their sprouting
4) Seed:________________________________
- Protected and surrounded by ________________________
- Structure differs between ________________________and
_______________________
- Seeds must have certain conditions for __________________to occur
- Structure differs between ______________________and
_____________________________
- Seeds must have certain conditions for ________________to occur
- Until ideal condition occur, seeds will undergo
_________________________________________________________
_________________________________________________________
_________________________________________________________
5) Conditions for Germination
- Must absorb _______________________
- Need ________________and optimal _____________________
- Seed must get ________________________to keep growing
F) Asexual Reproduction
-
Production of an individual without the union of ______________
Advantage:____________________________________________
Disadvantage:__________________________________________
Stems Modified for Vegetative Reproduction
Name
Description
Examples
Runner
Bulb
Corm
Rhizome
Tuber
Methods
Method
Description
Small stems from one plant
are attached to larger stems
or roots of another plant
Leaves or pieces of stems or
roots are cut from one plant
are used to grow new
individuals
Pieces of tissue from one
plant are placed on a sterile
medium and used to grow
new individuals
Example