NameTypeWhat ?Organisms+- 1. Binary Fission AsexualCell splits and replicated DNA goes with each...
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Transcript of NameTypeWhat ?Organisms+- 1. Binary Fission AsexualCell splits and replicated DNA goes with each...
Name Type What ? Organisms + -
1. Binary Fission
Asexual Cell splits and replicated DNA goes with each part
• bacteria • fast • easy
• all offspring have same DNA
2. Regeneration/ Fragmentation
asexual Lost or damaged tissues, organs or limbs are restored
Invertebrates• worms • Starfish
• easy • parent broken• same DNA
3. Budding asexual Offspring grows off of parent
•Yeast•hydras
• fast•Some-what easy
•All offspring have same DNA
4. Pollination sexual When pollen is transferred from the anther to the stigma
Flowering plants
• plants don’t have to move• mixes DNA
• need a pollination vector
5. Sexual Reproduction
sexual Egg and sperm unite to form a zygote
Most animals and some plants
• results in genetically differences
• slow
Class Starter Questions1. Draw a picture of a flower and try to label it’s parts as best you can.
2. Can you Identify which are the female and male parts?
Parts of a FlowerParts of a Flower
1. Sepals1. Sepals
2. Petals2. Petals
3. Stamens3. Stamens
4. Pistil4. Pistil
pistil
SepalsSepals
Sterile, leaf-like structures. Sterile, leaf-like structures. (do (do not have the capacity to produce not have the capacity to produce gametes) gametes)
May be brightly colored.May be brightly colored. FunctionFunction
Protect other flower parts.Protect other flower parts. Attract pollinators.Attract pollinators.
PetalsPetals
Sterile flower Sterile flower part.part.
Often brightly Often brightly colored.colored.
FunctionFunction Attract Attract
pollinators.pollinators.
StamensStamens
MaleMale reproductive reproductive flower structureflower structure..
FunctionFunction Produce pollen Produce pollen
(like plant sperm).(like plant sperm).
Stamen StructureStamen Structure
Anther - pollen Anther - pollen producing sac.producing sac.
Filament - stalk.Filament - stalk.
PistilPistil Female reproductive flower Female reproductive flower
structure.structure. FunctionFunction
Produce ovules.Produce ovules.
Pistil StructuresPistil Structures Stigma Stigma – receives the pollen.– receives the pollen. StyleStyle – stalk. – stalk. OvaryOvary – contains the ovules. – contains the ovules.
OvuleOvule An immature seed before fertilization.An immature seed before fertilization.
The ovules are the female gamete.The ovules are the female gamete.
Pollen DevelopmentPollen Development Pollen is the male gamete.Pollen is the male gamete.
PollinationPollination The transfer of pollen from The transfer of pollen from
the filament to the stigma.the filament to the stigma.
Pollen VectorsPollen Vectors Bees FliesBees Flies Butterflies MothsButterflies Moths Birds BeetlesBirds Beetles Bats WindBats Wind
FertilizationFertilization
The union of the ovum and sperm to produce a zygote.
After FertilizationAfter Fertilization
Zygote (fertilized egg cell) plant embryo
Ovule Seed Ovary Fruit
Fruit FunctionsFruit Functions
Protect the seeds.
Aid in seed dispersal.
SeedsSeeds
Contain a miniature plant. Main dispersal mechanism
for plants.