Floral Anatomy

Question 1

Anther

Answer 1

The head on the filament

Question 2

Filament

Answer 2

The long thin part of the male reproductive system

Question 3

Stigma

Answer 3

The head of the style

Question 4

Style

Answer 4

The tube leading down to the ovary

Question 5

Petal

Answer 5

Ring of brightly colored, leaf shaped parts of a flower

Question 6

Ovary

Answer 6

Where the ovules are

Question 7

Ovules

Answer 7

The eggs in the ovary where the sperm goes and which forms into seeds

Question 8

Sepal

Answer 8

Outermost ring of modified leaves that protects the flower bud

Question 9

Receptacle

Answer 9

Where the stem turns into the sepal

Question 10

Stamen

Answer 10

Male reproductive structures; produces pollen.

Consists of an anther at the tip of the filament

Question 11

Pistil

Answer 11

Female reproductive part; produces eggs

Consists of stigma, style and ovaries.

Question 12

How do the sperm meet the ovules?

Answer 12

Pollen spores from a different plant land on the stigma, travels down the style through a tube it made until it hits an ovule. Ovule later forms a seed.

Question 13

Flowers

Answer 13

The purpose is to attract insects. They produce nectar, fluid which contains sugar.

Question 14

Leaves

Answer 14

Make food for the plant; chloroplasts capture energy from sunlight; absorb CO2 from the air; use energy to make simple sugar

Question 15

Leaf structure

Answer 15

Outer surface covered by a cuticle

Question 16

Epidermis

Answer 16

Single layer of cells beneath cuticle; contains stoma

Question 17

Cuticle

Answer 17

A waxy layer on top of the leaf which keeps the plant from drying out

Question 18

Stoma

Answer 18

Tiny openings that let CO2 enter the leaf

Question 19

Guard cells

Answer 19

They open and close the stomata allowing water and CO2 in

Question 20

Stem function

Answer 20

Connects roots to leaves and flowers; supports the plant; transports and sometimes stores materials

Question 21

Herbaceous stem

Answer 21

Soft, thin and flexible: tomatoes, corn, wildflowers

Question 22

Woody stem

Answer 22

Rigid, made of wood and bark; plant is dormant in Winter

Question 23

Root Function

Answer 23

Supply plants with water and dissolved materials; hold plants securely in soil; store surplus food

Question 24

Root cap

Answer 24

End of root; hard surface that protects the tip

Question 25

Root hair

Answer 25

Increases surface area

Question 26

Tap root

Answer 26

One main root; small roots branch from the large one; reaches water deep down: carrots, some trees

Question 27

Fibrous root

Answer 27

Several same size roots that spread from the base of the stem; gets water close to the surface: grasses, cacti

Question 28

Xylem

Answer 28

Conducts nutrients and water from roots

Question 29

Phloem

Answer 29

Conducts food from leaves