Flower Prac

Question 1

What are angiosperms?

Answer 1

Seed-bearing plants that produce flowers

Question 2

The seeds which contain plant embryo are produced in the _____.

Answer 2

Flower

Question 3

All the parts of a flower are actually modified leaves that are ______for their roles in the ______ process.

Answer 3

Specialized

Reproductive

Question 4

Flower parts are arranged in circles called _____.

Answer 4

Whorls

Question 5

What is the base of the flower called?

Answer 5

Receptacle

Question 6

What two groups can flower structures be divided into?

Answer 6

Essential organs and accessory organs

Question 7

The essential organs are the ______ structures which include ____ (male) and ______ (female).

Answer 7

Reproductive
Stamen
Pistil

Question 8

The accessory organs are the _____ and _____ which surround and protect essential organs.

Answer 8

Sepals

Petals

Question 9

The stamen is the male reproductive organ and consists of 2 parts the ____ and _____.

Answer 9

Filament

Anther

Question 10

What is an anther?

Answer 10

Enlarged structure at the top of the stamen.

Question 11

What is inside the anther?

Answer 11

Pollen sacs

Question 12

What do pollen sacs produce?

Answer 12

Pollen grains

Question 13

How many sperm does each pollen grain contain?

Answer 13

2

Question 14

What happens when pollen grains mature?

Answer 14

The pollen sacs split open to release dust like pollen.

Question 15

What is the filament?

Answer 15

Thin stalk that supports the anther.

Question 16

What is the pistil?

Answer 16

Female reproductive organ

Question 17

What 3 parts does the pistil consist of?

Answer 17

Stigma
Style
Ovary

Question 18

What is the stigma?

Answer 18

An enlarged portion at the top of the pistil that becomes moist and sticky when mature.

Question 19

What is the style?

Answer 19

Middle portion of the pistil, it is long and slender and sometimes Absent.

Question 20

What is the ovary?

Answer 20

The enlarged structure at the bottom at the bottom of the pistil.

Question 21

What are locules?

Answer 21

Hollow compartments in the ovary.

Question 22

What does each locule contain?

Answer 22

Ovules

Question 23

What does each ovule contain?

Answer 23

Ova (eggs)

Question 24

Some flowers have all male or all female parts and are called _____. Examples include _______,_______.

Answer 24

Imperfect

Pumpkin,melons

Question 25

What re perfect flowers?

Answer 25

Flowers that have both male and female flowers.

Question 26

- Pollination occurs when pollen grains land on the sticky surface of the _______ and are trapped there. - The pollen grains _______ and a pollen tube emerges from the grain. - The pollen tubes grows down the _____ to the ovary and enters the ovule, making a continuous passageway for sperm to enter to the ovum. - Fertilization occurs when the ____ join the _____.

Answer 26

``` Stigma Germinates Style Sperm Eggs ```

Question 27

After pollination The fertilized egg becomes an ____. The wall of the ovule thickens an forms a _____, thus enclosing and protecting the embryo. The ovule wall thickens and develops into a ______.(In some plants such as apples, the ovary walls become fleshy and contain sugars and starches, in other plants such as walnuts the ovary walls become dry and hard.)

Answer 27

Embryo Seed Fruit

Question 28

What are sepals?

Answer 28

The outermost Whorl of the flower, they are leaf like and usually green in color.

Question 29

What do sepals do?

Answer 29

Protect the inner part of the flower during the budding stage.

Question 30

What are petals?

Answer 30

Directly beneath the sepals and largest part of the flower.

Question 31

What is the function of the petals?

Answer 31

Their color and odor attract pollinators to the flower for pollination.