Fertilization Flashcards
Other term for fertilization
syngamy
Syngamy consists of two parts which are the:
Plasmogamy or Protoplasm fusion
Karyogamy or Nuclei fusion
First step of fertilization
The pollen reaches out its egg cells through the pollen tube
The first sperm reaches through the microphyle , through the synergids and final to the egg.
First Fertilization
First fertilization - The first sperm reaches through the ______, through the _______, and final to the ______
Microphyle, synergids, egg
The second sperm cell reaches the polar nuclei at the center , but no karyogamy occurs in resulting cell is
tripod (3n).
Second fertilization
Sperm cell and egg cell fertilize and give rise to _____, later the _______
zygote, embryo
This will become the primary endosperm later the
permanent endosperm.
tripod (3n)
The resulting cell is tripod (3n). this will become the ____ later the _______
Primary endosperm, permanent endosperm
After the two rounds of Fertilization, the ovule will slowly develops its embryo and_______will come.:
three shaped defined stages
three shaped defined stages
a. Globular stage
b. heart stage
c. torpedo stage
Torpedo stage, the _____ will become distinct
embryo
embryonic root
radicle
embryonic stem
plumune
embryonic leaf
Cotyledon
usually will absorb the nutrients from and replace the endosperm
Cotyledon
Torpedo stage, the embryo will become distinct
a. Radicle
b. Plumune
c. Cotyledon
Other term for seed coat
testa
The seed coat/testa will form from ______
integument
In the process the _______ breaks and leaves a scar
funiculus
In the process the funiculus breaks and leaves a scar called _____.
hilum
The product is ________
Fully mature seed
PROCEDURES FOR GERMINATION:
Drying
Imbibition
Scarification or Stratification
Growth of the radicle
Growth of the stem
up to 95% of the seed body
drying
