7Th Fowler Science Chapter 2 2.2

Front 1

_____ is the transfer of pollen from the anther to the stigma.

Back 1

Pollination

Front 2

____ is the formation of a seed by the uniting of a sperm nucleus from a pollen grain with an egg cell.

Back 2

Fertilization

Front 3

When pollen is mature, the _____opens; exposing the pollen grains.

Back 3

anther

Front 4

__________ are insects or animals that aid in pollination by helping pollen get to the stigma of the flowers.

Back 4

Pollinators

Front 5

Most pollinators are drawn to the ___ of the petals, or the scent of the flower's ______, or the ____ of the petal.

Back 5

color of the petals, or
the scent of the flower's nectar, or
the shape of the petal

Front 6

____ is a sweet liquid usually stored in the base of the flower blossom.

Back 6

Nectar

Front 7

___ ______ is when a flower pollinates itself.

Back 7

Self-pollination

Front 8

___ ____ is when a flower is pollinated by another flower with the help of a pollinator.

Back 8

Cross-pollination

Front 9

What happens when the pollen grain is attached to the stigma?

Back 9

The pollen tube will begin to grow from the top of the stigma, through the style and into the ovary.

Front 10

The ___ ______ of the pollen grain divides to form two sperm nuclei.

Back 10

sperm nucleus

Front 11

Once the sperm nucleus divides into two sperm nuclei, one will ____________ and the other will ____________________.

Back 11

unite with the egg cell in the ovule and the other will help with the food production for the seed.

Front 12

The fertilized egg is called an ____.

Back 12

embryo

Front 13

The three parts of the seed are:
1
2
3

Back 13

1.embryo
2.seed coat
3.endosperm

Front 14

The embryo is made up of three parts:
1
2
3

Back 14

1.cotyledon - food storage
2.plumule - stem/leaves
3.radicle - the root

Front 15

The _______ stores food for the seed.

Back 15

endosperm

Front 16

______ is the early growth of the seed.

Back 16

Germination

Front 17

Plants whose seeds have one cotyledon are called ______.

Back 17

monocotyledons

Front 18

Plants whose seeds have two cotyledons are called ____.

Back 18

dicotyledons

Front 19

________ generally germinate faster than _______.

Back 19

Dicotyledons germinate faster than
monocotyledons

Front 20

A_____ is anything that forms from the ovary of a flower.

Back 20

fruit

Front 21

Fruits are designed to ______ and to ______ with the dispersal of the seeds after they have matured.

Back 21

protect
help

Front 22

______ means to scatter or distribute.

Back 22

dispersal

Front 23

Name two types of seed dispersal:
1
2

Back 23

1.mechanical
2.agent

Front 24

_______ dispersal involved the plant dispersing its seeds when the seeds are mature.

Back 24

Mechanical dispersal

Front 25

Name three kinds of agent dispersal:
1
2
3

Back 25

1.birds digesting the seed and then depositing it somewhere
2.animals burying the seeds
3.animals' fur acting as carriers

Front 26

___ and ____ are also important in seed dispersal.

Back 26

Wind and water