BTNY M7

Question 1

• A highly specialized shoot adapted to carry on sexual reproduction and the production of seeds.
  Its structure is an important means of identifying and classifying angiosperms.

Answer 1

Flower

Question 2

The Structure of the Flower

The female organ of the flower
Usually found at the center of the flower. It consists of enlarge basal portion called the ovary

Answer 2

The Pistil

Question 3

The Structure of the Flower

– attachment between the ovary wall and ovule

Answer 3

Funiculus

Question 4

The Structure of the Flower

The male organ of a flower. Consists of two parts:
Anther – large terminal portion, contains cavities (pollen sacs)
Filament - stalk

Answer 4

The Stamen

Question 5

The Structure of the Flower

The stamen and pistil are the essential parts a flower, they are usually surrounded by thin, expanded structures which collectively constitute the ____

Answer 5

perianth

Question 6

The Structure of the Flower

Composed of a number of separate thin units.
Usually white or brightly colored.
More or less tubular, bell shaped, funnel shaped structure with lobes.

Answer 6

petal

Question 7

The Structure of the Flower

Typically small and green.
To protect the inner parts of the flower before the flower bud has opened

Answer 7

sepal

Question 8

The Structure of the Flower

is the flower stalk.

Answer 8

Peduncle

Question 9

The Structure of the Flower

is the expanded terminal portion on which the other parts of the flowers are borne.

Answer 9

Torus/Receptacle

Question 10

Position of the Ovary
– the sepals and petals are attached below the ovary. A flower with a ____is said to be hypogynous. E.g. Gumamela, kalamansi

Answer 10

Superior ovary

Question 11

Position of the Ovary
– the sepals,petals are attached above the ovary . A flower with____is said to be epigynous. E. g. Guava, duhat

Answer 11

Inferior ovary

Question 12

Position of the Ovary
– the pistil is in the bottom of a concave receptacle to the edges of which the sepal, stamen, and petal are attached. In such flower, the ovary may be superior or half inferior.

Answer 12

Perigynous flower

Question 13

the places where the ovules are attached in the ovary are known ____

Answer 13

placentae.

Question 14

The arrangement of the placentae inside the ovary is called ____

Answer 14

placentation.

Question 15

Types of Placentation
– the placentae are located on the wall of a single ovary. A single ovary has one chamber or locule. (E.g. Sitao, batao, patani)

Answer 15

Marginal placentation

Question 16

Types of Placentation
. – the placentae are found on the wall of a compound ovary. A compound ovary has two or more locule. (E.g. Patola, upo, pipino)

Answer 16

Parietal placentation

Question 17

Types of Placentation
– is found in both simple and compound pistils, with one locule in the ovary and the ovules attached to the locule floor.

Answer 17

Basal placentation

Question 18

Types of Placentation
– the ovules are attached where the septa of a compound pistil are united in the middle of the ovary.

Answer 18

Axil placentation

Question 19

Types of Placentation
– in some ovaries of a compound pistils, there may be a single locule with a column of tissue sticking up in the center of the ovary bearing the ovules.

Answer 19

Free central placentation

Question 20

are clusters of flowers

Answer 20

Inflorescences

Question 21

Inflorescences
an infloresce with an elongated peduncle or axis. The are individual flowers are without stalks, and are said to be sessile.(Bottle brush)

Answer 21

Spike –

Question 22

Inflorescences
– elongated axis is unbranced. The flower s are provided with stalks or pedicels of equal lengths, and are called pedicellate flower (gladiola)

Answer 22

Raceme

Question 23

Inflorescences
– elongated axis is branched . Flowers arepedicellate, opening all the same time. (e.g.rice)

Answer 23

Panicle

Question 24

Inflorescences
the axis is short so that all the pedicellate flowers radiate from the apex of the axis.

Answer 24

Umbel –

Question 25

Inflorescences – has a special type of spike which is hanging or dropping. The flowers are unisexual.

Answer 25

Catkin or ament

Question 26

Inflorescences – a fleshy spike bearing both male and female flowers, surrounded by a petaloid bract called the spath

Answer 26

Spadix

Question 27

Inflorescences – it has more or less flat or convex top because the pedicels bearing the outer, older flowers are longer than those at the center.

Answer 27

Corymb

Question 28

Inflorescences similar to corymb except that the inner pedicel flowers open first

Answer 28

Cyme –

Question 29

Inflorescences the pedicelled or sessile flowers are crowded at one side of the stem. (Birds of paradise)

Answer 29

Fascicle –

Question 30

Inflorescences it is similar umbel but the flowers are sessile. Usually the flowers are of two kinds: the disc flowers at the center and the ray flowers at the margin

Answer 30

Head or capitate –

Question 31

Inflorescences – a single flower at the end of the peduncle.

Answer 31

Solitary

Question 32

Inflorescences – An inflorescence with the flowers in whorls at the node.

Answer 32

Verticil

Question 33

The Structure of the Ovule – clear central parts of the ovule which contains the egg cells.

Answer 33

Embryo sac

Question 34

The Structure of the Ovule the region around the embryo sac consisting of compact mass of thin walled cells is filled with dense protoplasm.

Answer 34

Nucellus –

Question 35

The Structure of the Ovule – the portion of the base of the ovule to which the funiculus is attached.

Answer 35

Chalazes

Question 36

The Structure of the Ovule – the two thin coverings of the ovule which arise from the base of the chalazes

Answer 36

Integuments

Question 37

The Structure of the Ovule the large cell of the embryo sac attached toward the micropylar end.

Answer 37

The egg-

Question 38

The Structure of the Ovule – the opening or small passage, at the tip of the ovules.

Answer 38

Micropyle

Question 39

The Structure of the Ovule – the two smaller cells found at the sides of the egg.

Answer 39

Synergids

Question 40

The Structure of the Ovule the three cells, in the embryo sac toward the chalazal end.

Answer 40

Antipodal cells –