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Pharmaceutical Botany + Taxonomy > Microcytes vs Megacytes > Flashcards

Microcytes vs Megacytes Flashcards

1
Q

Microspore mother cells

A

Microsporocytes

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2
Q

Microsporocytes in the ____ undergo meiotic division

A

anther

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3
Q

Microsporocytes

A

Microspore mother cells

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4
Q

A microspore is produced, nursed by ________

A

tapetum

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5
Q

The microspore undergoes mitotic division and produces ________

A

Two sperm nuclei and a pollen tube nucleus

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6
Q

The ____________ will continue the vegetative cell

A

pollen tube nucleus

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7
Q

The sperm nuclei will constitute the ________

A

generative cell

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8
Q

The ______ will elongate when the pollen reaches the _____

A

pollen nuclei, stigma.

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9
Q

What allows the sperm to enter the ovule

A

the elongation of the pollen nucleus until it reaches the stigma

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10
Q

Magaspores mother cells

A

megasporocytes

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11
Q

Megasporocytes in the ___ undergo meiotic division

A

ovule

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12
Q

How many nuclei are produced in the formation of megagametophytes

A

four nuclei, but only one remains to grow to a megaspores

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13
Q

Megaspores are nursed by the _______ or the parenchymal cells in the ovule

A

nucellus

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14
Q

The megaspores will undergo ___ mitotic divisions

A

three (3)

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15
Q

the megaspores will undergo three mitotic divisions to produce ________

A

eight nuclei

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16
Q

By the time that eight nuclei are formed the whole ovule is called _______

A

embryo sac

17
Q

The eight nuclei becomes _________

A

seven cells

18
Q

What are the seven cells that came from the eight nuclei

A

1 egg cell
2 synergids
1 binucleate polar cell
3 antipodal cells

19
Q

The egg with two synergids is called the ________

A

egg apparatus

20
Q

Has an intricate cell wall

A

Microgametophyte

21
Q

Exine outer layer having sporopollenin

A

Microgametophytes

22
Q

substance that prevents the pollen from drying up an dinner intine layer

A

Microgametophytes

23
Q

Sporopollenin is a substance that prevents the pollen from drying up an ________

A

dinner intine layer

24
Q

Microgametophyte - ________ having sporopollenins

A

exine layer

25
Q

Venue for the whole fertilization process

A

Megagametophytes

26
Q

VARIATION IN THE POLLEN GRAIN

A

Surface

Presence of pollen openings

27
Q

Smooth

A

Scarbrate

28
Q

Rough

A

Verrucose

29
Q

Porous

A

Spinose

30
Q

No Opening

A

APERTURATE

31
Q

With an opening

A

Perturate

32
Q

Two types of perturate

A

Monoperturate and Polyperturate

33
Q

1 pore

A

Monoperturate

34
Q

2 or more pores

A

Polyperturate

Pharmaceutical Botany + Taxonomy (23 decks)

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