Angiosperms: flower structure

Question 1

Angiosperm

Answer 1

“vessel seed” - seeds are enclosed in a container (carpel/fruit)

Question 2

Whorls of a complete flower: Individual structure (de adentro pa fuera)

Answer 2

1. carpel
2. stamen
3. petal
4. sepal

Question 3

Whorls of a complete flower: all structures (adentro pa fuera)

Answer 3

1. gynoecium
2. andoecium
3. corola
4. calyx

Question 4

Actinomorphic

Answer 4

regular, radial symmetry

Question 5

adnate

Answer 5

unlike parts, such as petals and stamens, wholly or partly fused together

Question 6

androecium

Answer 6

male reproduction system organ made of filament and anther

Question 7

anther

Answer 7

in an angiosperm, the terminal pollen sac of a stamen, where pollen grans containing sperm-producing gametophytes form

Question 8

basal angiosperm

Answer 8

the most primitive lineages of flowering plants, including amborella and water lilies

Question 9

calyx

Answer 9

the whorl of sepals in a flower collectively forming the outer floral envelope or layer of the perianth enclosing and supporting the developing bud

Question 10

carpel

Answer 10

female reproductive organ of the flower:
1. stigma
2.style
3.ovary
(megasporophyll)

Question 11

carpellate

Answer 11

flower that only contains a female reproductive system

Question 12

companion cell

Answer 12

phloem cell that surrounds sieve tube elements

Question 13

compound leaf

Answer 13

a leaf in which the blade is divided into two or more smaller leaflets

Question 14

connate

Answer 14

fusion between members of a whorl (i.e petal+petal)

Question 15

corolla

Answer 15

whorl of petals

Question 16

cotyledon

Answer 16

“seed leaf” that provides nutrients to seedlinga and becomes the first seed of the plant

Question 17

Fusion of floral parts

Answer 17

1. Adnate (different parts)

2. connate (same)

Question 18

free

Answer 18

structures are not fused together

Question 19

floral symmetry

Answer 19

1. regular

2. irregual

Question 20

Regular symmetry

Answer 20

flower can be divided in three or more identical parts

Question 21

Irregular symmetry

Answer 21

Flower can only be divided in one single plane into two mirror-image halves

Question 22

Ovary position

Answer 22

1. superior

2. Inferior

Question 23

Superior Ovary position

Answer 23

ovary attached to the receptacle above the attachment of other floral parts

Question 24

Inferior ovary position

Answer 24

ovary lies below the attachment of other floral parts

Question 25

Insertion of parts

Answer 25

1. Hypogynous 2. Perigynous 3. Epigynous

Question 26

Hypogynous

Answer 26

having the stamens and other floral parts situated below the carpel

Question 27

Perigynous

Answer 27

Having the stamens and other floral parts at the same level than the carpel

Question 28

Epigynous

Answer 28

Having the ovary enclosed in the receptacle, with the stamens and other floral parts situated above the carpel

Question 29

Floral Whorls

Answer 29

1. complete 2. incomplete 3. perfect 4. imperfect

Question 30

Complete flower

Answer 30

all four whorls are on it

Question 31

Incomplete flower

Answer 31

1 or more whorls are not present

Question 32

Perfect Flower

Answer 32

Stamen and pistil are present

Question 33

Imperfect flower

Answer 33

contains stamen OR pistil

Question 34

Leaf form

Answer 34

1. simple | 2. compound

Question 35

simple leaf

Answer 35

a leaf that has an undivided blade

Question 36

compound leaf

Answer 36

a leaf in which the blade is divided into two or more smaller leaflets

Question 37

Leaf margin

Answer 37

1. entire margin | 2. toothed margin

Question 38

entire margin

Answer 38

structure of the leaf's edge is smooth

Question 39

toothed margin

Answer 39

leaf's edge is jabbed

Question 40

inflorescences

Answer 40

a group of flowers

Question 41

sessile

Answer 41

a flower or leaf having NO stalk

Question 42

phyllotaxis

Answer 42

arrangement of leaves. 1. alternate 2. opposite 3. whorled

Question 43

alternate

Answer 43

one leaf per node

Question 44

opposite

Answer 44

two leaves opposite one another per node

Question 45

whorled

Answer 45

three or more leaves per node