Reprodution
Páginas: 2 (337 palabras)
Publicado: 8 de diciembre de 2012
REPRODUCTION EXAM
MAMMALS:
Male reproductive organs: sperm duct, urethra, testis, penis, associated gland
Female reproductive organs: ovaries, oviduct, uterus, cervix ,vagina
Malegametes: SPERM
Female gametes: OVA(pl)
Place where fertilization occur: Fallopian tubes or oviduct
Zygote growS into... Embryo
FLOWING PLANTS:
Male reproductive organs: Stamen--filament,
Femalereproductive organs: Carpel--- stigma, style, ovary
Male gametes: POLLEM GRAINS
Female gametes: EGG CELL
Place where fertilization occur: ovary
Zygote grows into...Seed
REPRODUCTION: Process ofproducing new individuals of the same specie
SEXUAL(fusion of gametes)
Internal fertilization: egg cell or ova fertilized inside of the female body
External fertilization: fertilization occur outsidethe female body, in the water
ASEXUAL(no gametes involved-mitosis)
Unicellular--- cell divison
Fungi--- haploid spores
Vegetative propagation
FERTILIZATION: Is the process in which two gametesfuse including the fusion of their nucleus. Fertilization occur in the oviduct or the fallopian tubes.
OVUM (female gamete)
SIZE: bigger
SHAPE: rounded
MOVEMENT: cant move by its own
CYTOPLASM:complete
PLACE WHERE IS PRODUCED: ovary
AMOUNT: few
SPERM (male gamete)
SIZE: smaller
SHAPE: with a tail
MOVEMENT: swims
CYTOPLASM: reduced
PLACE WHERE IS PRODUCED: testis
AMOUNT: millionsPassage from the time the sperm is produced to the time the sperm fertilize the ovum
1-TESTIS
2-EPIDIMYDIS
3-SPERM DUCT
4-URETHRA
5-VAGINA
6-CERVIX
7-UTERUS
8-OVIDUCTPROCESS OF FERTILIZATION
a. The sperm recognize the zona pellucida
b. The sperm libers acrosoms with digest part of the zona pellucida
c. The membranes of the sperm and ovum fuse
d. The nucleusof the sperm enters to the ovum
e. The nucleus fuse and zygote is form
f- Cell division starts forming an embryo
OVULATION: Is the process in which an ovum is released into the oviduct all the...
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