Microcytes vs Megacytes Flashcards
Microspore mother cells
Microsporocytes
Microsporocytes in the ____ undergo meiotic division
anther
Microsporocytes
Microspore mother cells
A microspore is produced, nursed by ________
tapetum
The microspore undergoes mitotic division and produces ________
Two sperm nuclei and a pollen tube nucleus
The ____________ will continue the vegetative cell
pollen tube nucleus
The sperm nuclei will constitute the ________
generative cell
The ______ will elongate when the pollen reaches the _____
pollen nuclei, stigma.
What allows the sperm to enter the ovule
the elongation of the pollen nucleus until it reaches the stigma
Magaspores mother cells
megasporocytes
Megasporocytes in the ___ undergo meiotic division
ovule
How many nuclei are produced in the formation of megagametophytes
four nuclei, but only one remains to grow to a megaspores
Megaspores are nursed by the _______ or the parenchymal cells in the ovule
nucellus
The megaspores will undergo ___ mitotic divisions
three (3)
the megaspores will undergo three mitotic divisions to produce ________
eight nuclei
By the time that eight nuclei are formed the whole ovule is called _______
embryo sac
The eight nuclei becomes _________
seven cells
What are the seven cells that came from the eight nuclei
1 egg cell
2 synergids
1 binucleate polar cell
3 antipodal cells
The egg with two synergids is called the ________
egg apparatus
Has an intricate cell wall
Microgametophyte
Exine outer layer having sporopollenin
Microgametophytes
substance that prevents the pollen from drying up an dinner intine layer
Microgametophytes
Sporopollenin is a substance that prevents the pollen from drying up an ________
dinner intine layer
Microgametophyte - ________ having sporopollenins
exine layer
