Flower Morphology

Question 1

Flower

Answer 1

-Reproductive organ of angiosperm
-produces fruit
-adaptation to environment depended on for reproductive success of angiosperm
-lots of diversity for diff polinators

Question 2

fruit

Answer 2

Ovary with seed enclosed

Question 3

How does a flower develop

Answer 3

-develops in a bud, apical meristem stops -producing vegitative structures and starts producing flowers
-sometimes axillary buds will produce flowers
-floral structures considered to be specialized leaves

Question 4

Receptacle

Answer 4

region where floral parts are attached

Question 5

sepals

Answer 5

outermost whorl of leaf-like floral parts

-protect the inner parts of the flower from damage and desiccation before it opens.

Question 6

what is the collective sepals

Answer 6

calyx

Question 7

Petals

Answer 7

-collectively called carola
-very diverse
vary in symmetry, attachment etc

Question 8

apetalous

Answer 8

no petals(wheat)

Question 9

sympetalous

Answer 9

petals are partially or completetly fused

Question 10

choripetalous

Answer 10

petals are seperate

Question 11

regular symmetry

Answer 11

all floral parts are of similar shape and size

Question 12

irregular symmetry

Answer 12

all floral parts not same shape or size

Question 13

Stamens

Answer 13

-Pollen bearing structure
-includes anther(polen containing and filament)
male

Question 14

what are collective stamens called

Answer 14

androecium “male house”

Question 15

Pistil

Answer 15

includes ovary, stigma, style

Question 16

how does fertilization happen in pistil

Answer 16

pollen lands on stigma and germinates, the polen tube then grows through style to reach ovule for fertilization

Question 17

ovary is divided into chambers called
what do they contain

Answer 17

carpels
ovules

Question 18

what are collective carpels called

Answer 18

gynoecium”Female house”

Question 19

Complete Flowers

Answer 19

-contain all floral components including sepals, petals,stamens, and carpels

Question 20

incomplete flowers

Answer 20

contain all floral components including sepals, petals, stamens, carpels

Question 21

Perfect Flowers

Answer 21

have both female and male reproductive structures
stamen and pistil respectively

Question 22

Imperfect flowers

Answer 22

have only female or only male structrues
stamen or pistil respectively

Question 23

peduncle

Answer 23

stalk between inflorescence

Question 24

inflorescence

Answer 24

flowers arranged in a floral axis

Question 25

spike unbranched inflorescence

Answer 25

flowers attached directly to central axis

Question 26

raceme unbranched

Answer 26

flowers attached by pedicels to central axis

Question 27

panicle branched raceme

Answer 27

idk

Question 28

umbel flowers

Answer 28

attached by pedicels which arise from common point -simple or compound

Question 29

corymb unbranched

Answer 29

pedicels of unequal length alternatively attached along central axis
-forms flat topped cluster

Question 30

head

Answer 30

peduncle with flowers attached directly to broad receptacle

Question 31

Megasporagenesis

Answer 31

female
megaspores formed through meiosis
-3 megaphores degenerate, 1 develops through mitosis into a 8 nucleate embryonic sac

Question 32

microsporagenesis

Answer 32

microspores formed through meiosis
each microspore forms a pollen grain

Question 33

Ovary

Answer 33

develops into fruit(sometimes composed of more than one ovary and additional tissues)

Question 34

Ovule

Answer 34

Develops into seed

Question 35

integuements
what is it part of

Answer 35

parts of ovule
develops into testa(seed coat)

Question 36

Nucellus
what is it part of
what does it develop into

Answer 36

part of ovule
develops into perisperm(usually absent or replaced at maturity, sometimes storage tissue)

Question 37

2 polar nuclei & sperm nucleus develops into

Answer 37

endosperm(3n)

Question 38

egg nucleus and sperm nucleus –>

Answer 38

1n+1n–> 2N
zygot or embryo