FLOWERS, POLLEN, OVULE

Question 1

reproductive organ of a plant
organ for sexual reproduction that involves the union of gametes

Answer 1

flower

Question 2

modified shoot with a compressed axis, bearing a series of floral leaves that have been variously modified

Answer 2

flower

Question 3

The point of attachment for the various modifications

Answer 3

receptacle

Question 4

are modified leaves which encase the rest of the developing flower. They may be either green and leaflike, or composed of petal-like tissue.

Answer 4

Sepals

Question 4

the expanded end of a flower stalk on which the flower parts are borne

Answer 4

receptacle

Question 5

Sepals collective term

Answer 5

calyx

Question 6

are modified leaves usually functioning as visually conspicuous “signposts” which serve to attract specific pollinators.

Answer 6

Petals

Question 7

Petals collective term

Answer 7

corolla

Question 8

Calyx and corolla taken as one is called

Answer 8

perianth

Question 9

collective term is androecium

Answer 9

Stamens and pollen

Question 10

composed of sac-like anthers and filaments that are stalks that support the anthers

Answer 10

Stamens

Question 11

form an erect tube

Answer 11

filaments

Question 12

filaments form an erect tube called

Answer 12

staminal tube

Question 13

consist of 2 sacs, each of which contains two microsporangia

Answer 13

Anthers

Question 14

occurs in numerous microspore mother cells in the microsporangia, each microspore mother cell producing four microspores

Answer 14

Meiosis

Question 15

becomes a pollen grain or microgametophyte.

Answer 15

microspore

Question 16

Flowers can be borne singly or in aggregations called inflorescence

Answer 16

true

Question 17

Flowers in which the four basic parts are present are called

Answer 17

complete

Question 18

Flowers in which the four basic parts at least one part is absent are called

Answer 18

incomplete

Question 19

four basic parts of a flower

Answer 19

sepals, petals, stamens, and carpels

Question 20

collectively called gynoecium

Answer 20

Pistil and carpel

Question 21

three regions of the pistil (from the base up)

Answer 21

ovary, style and stigma

Question 22

where the ovules are found

Answer 22

ovary

Question 23

stalked structure atop the ovary that elevates into a sticky knob

Answer 23

style

Question 24

sticky knob

Answer 24

stigma

Question 25

In the gumamela, the style is found inside the staminal tube while the five stigma project from this tube.

Answer 25

true

Question 26

The ovary is often divided into chambers called

Answer 26

locules

Question 27

inside the locules are the

Answer 27

ovules

Question 28

Meiosis occurs in a megaspore mother cell in each ovule, producing four megaspore. Three of these disintegrate, leaving a functional megaspore,

Answer 28

true

Question 29

a functional megaspore, which divides mitotically to produce the

Answer 29

embryo sac or megagametophyte

Question 30

having the corolla composed of united petals

Answer 30

gamopetalous

Question 31

one of the outer parts of a flower (collectively the perianth), The term is used when these parts cannot easily be classified as either sepals or petals.

Answer 31

tepal

Question 32

having many distinct or separate petals

Answer 32

polypetalous

Question 33

bundle of leaves or flowers growing crowded together

Answer 33

fascicle

Question 34

Flowers can vary from containing both male and female parts

Answer 34

perfect

Question 35

Flowers containing just one sex

Answer 35

imperfect

Question 36

Flowers having no sexual parts

Answer 36

sterile

Question 37

Female and male flowers are located on separate plants

Answer 37

dioecious

Question 38

Female and male flowers are located on the same plants

Answer 38

monoecious

Question 39

petals of the flower can either be free from each other

Answer 39

polypetalous

Question 40

petals of the flower can either be united forming a cup or tube with separate terminal lobes.

Answer 40

gamopetalous

Question 41

symmetry is based on a wheel plan flower is divisible on more than one axis into two equal halves that are mirror images of each other

Answer 41

radial symmetry actinomorphic symmetry

Question 42

distinctly divisible into right and left sides; that is, it is divisible into mirror images on only one axis.

Answer 42

bilateral symmetry irregular or zygomorphic symmetry

Question 43

four types of irregular flowers

Answer 43

bilabiate, caesalpinaceous, orchidaceous and papilionaceous.

Question 44

A flower with superior ovary is such that the stamens, petals and sepals arise from a level below the base of the ovary

Answer 44

hypogynous flower

Question 45

that the flower has superior ovary but the bases of the stamens, petals and sepals develop as a floral cup around the pistil. Hypanthium

Answer 45

Perigynous flower

Question 46

the stalk of an individual flower within an inflorescence.

Answer 46

pedicel

Question 47

stalk of an inflorescence (containing one to many flowers)

Answer 47

peduncle

Question 48

part of the flower that turns into the pericarp

Answer 48

ovary wall

Question 49

part of the flower that turns into the seed

Answer 49

ovule

Question 50

part of the flower that turns into the seed coat

Answer 50

integument

Question 51

The main axis (also referred to as major stem) above the peduncle bearing the flowers or secondary branches

Answer 51

rachis

Question 52

a flower cluster with the separate flowers attached by short equal stalks at equal distances along a central stem. The flowers at the base of the central stem develop first.

Answer 52

raceme

Question 53

is a raceme, but the flowers develop directly from the stem and are not borne on pedicels

Answer 53

spike

Question 54

- a compound raceme; an indeterminate inflorescence in which the flowers are borne on branches of the main axis or on further branches of these

Answer 54

panicle

Question 55

one in which the flower stalks arise at different levels on the main axis and reach about the same height and in which the outer flowers open first

Answer 55

corymb

Question 56

consists of a number of short flower stalks (called pedicels) that spread from a common point, somewhat like umbrella ribs.

Answer 56

umbel

Question 57

a short dense spike in which the flowers are borne directly on a broad, flat peduncle, giving the inflorescence the appearance of a single flower

Answer 57

head

Question 58

instead of individual flowers radiating out from a single point, there are instead inflorescence branches. At the ends of each branch are secondary umbels.

Answer 58

Compound umbel

Question 59

a flat-topped inflorescence in which the central flowers open first, followed by the peripheral flowers

Answer 59

compound cyme

Question 60

The main axis terminates in flower and it produces one lateral branch from the base, which also terminates in a flower. Each lateral and subsequent branch also produces one lateral branch with a terminal flower.

Answer 60

cyme

Question 61

typically surrounded by a leaf-like curved bract known as a spathe

Answer 61

spadix

Question 62

a form of pollination whereby pollen is distributed by wind

Answer 62

Anemophily

Question 63

a form of pollination whereby pollen is distributed by water

Answer 63

hydrophily

Question 64

a form of pollination whereby pollen is distributed by insects

Answer 64

entomophily

Question 65

a form of pollination whereby pollen is distributed by bats

Answer 65

chiropterophily

Question 66

a form of pollination whereby pollen is distributed by birds

Answer 66

ornithophily

Question 67

a type of cymose inflorescence like a hollow-sphere (syconium) with a cavity inside, and it is formed by the fusion of the rachis of the three cymes in the vicinity of each other. These spherical receptacles are like a closed fleshy vessel having a tiny opening at the apex; it opens to the exterior with this opening.

Answer 67

Hypanthodium

Question 68

the basic unit of a grass flower, consisting of two glumes or outer bracts at the base and one or more florets above.

Answer 68

spikelet

Question 69

specialised pseudanthia ("false flowers") forming the inflorescence of plants\ the brackets fuse to form a cup-shaped structure

Answer 69

cyathium

Question 70

a cuplike or tubular enlargement of the receptacle of a flower, loosely surrounding the gynoecium or united with it. In epigynous and perigynous, not hypogynous

Answer 70

hypanthium