Bio B Tau -Angiosperm Reproduction (Ch.38)

Front 1

Receptacle

Back 1

עוקץ הפרח.

flowers are the reproductive shoots of the angiosperm sporophyte; they attach to a part of the stem called "Receptacle"

Front 2

Stamens

Back 2

אבקן

one of the four floral organs, the male part of a flower, a reproductive organ

Front 3

Carpels

Back 3

עלה השחלה

one of the four floral organs, the female part of a flower, a reproductive organ

Front 4

Sepals

Back 4

עלי גביע

one of the four floral organs, sterile-S

Front 5

Petals

Back 5

עלי כותרת

one of the four floral organs, sterile

Front 6

Anther

Back 6

מאבק

a filament top in the stamen with pollen sacs that produce pollen

Front 7

Style

Back 7

עמוד העלי

in the carpel, long, and with a stigma on which pollen may land

Front 8

Stigma

Back 8

צלקת

in the style which is in the carpel and where pollen can land

Front 9

Ovary

Back 9

השחלה

at the base of the style, contains one or more ovules

Front 10

Ovules

Back 10

ביציות

in the ovary which is at the base of the style

Front 11

Complete flowers

Back 11

contain all 4 floral organs

Front 12

Incomplete flowers

Back 12

lack one or more floral organs, for example stamens or carpels

Front 13

Inflorescences

Back 13

תפרחת

clusters of flowers

Front 14

Pollen tube

Back 14

produced by pollen grain and grows down into the ovary and discharges 2 sperm cells near the embryo sac.

Front 15

Embryo sac

Back 15

also called female gametophyte, develops within the ovule

Front 16

Coevolution

Back 16

evolution of interacting species in response to changes in each other

Front 17

Double fertilization

Back 17

results from the discharge of 2 sperm from the pollen tube into the embryo sac

Front 18

Endosperm (3n)

Back 18

triploid food-storing, rises from the sperm that combines with the polar nuclei

Front 19

Seed coat

Back 19

protective, hard and the embryo and its food supply are enclosed by this

Front 20

Hypocotyl

Back 20

below the cotyledons the embryonic axis is called "Hypocotyl" and terminates in the radicle

Front 21

Radicle

Back 21

embryonic root

Front 22

Epicotyl

Back 22

above the cotyledons the embryonic axis is called "Epicotyl"

Front 23

Coleoptile

Back 23

The covering of the young shoot of the embryo of a grass seed.

Front 24

Coleorhiza

Back 24

The covering ofthe young root of the embryo of a grass seed.

Front 25

Imbibition

Back 25

ספיחה

the uptake of water due to low water potential of the dry seed

Front 26

fruit kinds

Back 26

Front 27

suspensor

Back 27

The suspensor helps in transferring nutrientsto the embryo from the parent plant and, in some species,from the endosperm.

Front 28

cotyledons

Back 28

the seed leaves

Front 29

fragmentation

Back 29

A means of asexual reproductionwhereby a single parent breaks into partsthat regenerate into whole new individuals.

Front 30

apomixis

Back 30

The ability of someplant species to reproduce asexually throughseeds without fertilization by a male gamete.

Front 31

dioecious

Back 31

דו ביתי

havingthe male and female reproductive parts on differentindividuals of the same species.

Front 32

Monoecious

Back 32

חד ביתי

Both type of flowers on the plant

Front 33

Perfect/imperfect flower

Back 33

Perfect- bisexual -A perfect flower contains bothstamens and a pistil

Imperfect-unisexual-containsonly one type of sex organ