Please enable JavaScript.
Coggle requires JavaScript to display documents.
Flowers and Reproduction c805f1f4cdec8b2d4478c86b6286e5cd, Seed…
Flowers and Reproduction
Concepts
Reproduction
Producing offsprings
Identical copies of parental genes
Generating new individuals
Genetically different from the parents
Types
Asexual Reproduction
Sexual Reproduction
Flowers
Contains reproducing parts
Seeds
Produced by sexual reproduction
Asexual Reproduction
Occures within angiosperms
Fragmentation
A large spreading or vining plants
Individual parts
Becomes self-sufficient
By establishing adventitious roots
Numerous methods of asexual reproduction
Fertilization
Endosperm nuclues
Double fertilization
#
Karyogamy
Endosperm
Plasmogamy
Embryo and seed development
Short axis
Radicle
Epicotyl
Hypocotyl
Albuminous seed
Cotyledens
Cotyledon primordia
Heart shape embryo
exalbuminous seed
Suspencer
Pushes embryo deep into endosperm
Seed coat
Fruit development
Ovule
Seed
Ovary
Fruit
Three layers
Mesocarp
Endocarp
Exocarp
Flower Structure and Cross Pollination
Stigma and Pollen incompatibility
Compatibility barriers
Stamen and style maturation time
Monoeciuos and Dioecious species
Essential organs
Stemens
Carpels
Imperfect flowers
Monoecy
Monoecious
Perfect flowers
Dioecy
Dioecious
Non-essential organs
Sepals
Petals
Self-pollination
Within same flower or another flower or the same plant
Animal
Pollinated flowers
Coevolution
Zygomorphic
Bilaterally symmetrical
Actinomorphic
regular
Cross-pollination
Pollination of a carpl by pollen from a diffferent individual
Wind-pollinted flower
Transfer of pollens by wind
Ovary Position
Superior ovary
Hypogynous
Half-inferior
Perigynous
Inferior ovary
epigynous
Sexual reproduction
The Plant Life Cycle
Complex
Sporophyte phase
Sporophyte generation
Sporophyte
Diploid
Gametophyte
in plant no syngamy
Microgametophyte
Microspores
Megagametophyte
Megaspores
Alternation of generation
Heteromorphic generation
Flower Structure
Never becomes woody
No secondary growth
Similar to vegetative shoot
Pedicel
Stalk
Stem with leaflike structure
Receptacle
Complete flowers
Incomplete flowers
Floral appendages
Petals
Corolla
Perianth
Stamens
Filament
Anther
Androecium
Microspore mother cells
Microsporocytes
Tapetum
Pollen
Sepals
Uppermost
Calyx
Lowermost
Carpels
Gynoecium
Three parts
Stigma
Style
Ovary
Placentae
Ovules
#
Nucellus
Megaspore mother cells
Megasporocytes
Gametophyte
Microgametophyte
Generative cell
Pollen tube
Vegetative cell
Megagametophye
Polar nuclei
Two
Antipodal cells
Three
Central cell
Egg apparatus
Two synergid
An egg
Embryo sac
Humans
#
Simple
Gametes
Sperms
Eggs
Zygote
Mammalian gametes
Microgametes
Megagametes
Inflorescences and Pollination
Inflorescences
Collective visual signal
#
To pollinators
Two arrengements
Determinate inflorescences
Indeterminate inflorescences
Fruit types and seed Dispersed
True fruits and accessory fruits
Simple fruit
Single ovary
Fused ovaries of one flower
Aggregate fruit
Accessory fruit
Non- ovarian tissue
Multiple fruit
True fruit
Only ovarian tisssues
Classification of fruit types
Fleshy
Compound fruits
Dry
Dehiscent
Seed development
Attract pollinators helps in cross pollination
Humans gametes haploid so no alternation of generation
double fertilization involves egg and polar nuclei
