Flowers

Question 1

What are flowers

Answer 1

Reproductive structure of angiosperms

Question 2

3 ways of pollinating

Answer 2

Anemophilous- wind
Zoophilous - animals
Hydrophilous - water

Question 3

Calyx

Answer 3

Whorl of sepals

Question 4

Corolla

Answer 4

Whorl of petals

Question 5

Stamen

Answer 5

Anther
Filament

Question 6

Pistil/carpel

Answer 6

Stigma
Style
Ovary

Question 7

Complete

Answer 7

Flower containing sepals, petals, stamens, and pistil

Question 8

Incomplete

Answer 8

Flower lacking sepals, petals, stamens, and/or pistils

Question 9

Perfect

Answer 9

Flowers containing male and female parts

Question 10

Imperfect

Answer 10

Flowers that lack either male or female parts

Question 11

Pistillate

Answer 11

Flowers containing only female parts

Question 12

Staminate

Answer 12

Flowers containing only male parts

Question 13

Hermaphroditic

Answer 13

Plants with perfect flowers (apples, tulips)

Question 14

Monoecious

Answer 14

Plants with separate male flowers and female flowers on the same plant (corn, squash, and pine)

Question 15

Dioecious

Answer 15

Plants with male flowers and female flowers on separate plants (maple, holly, and salt brush)

Question 16

Gynoecious

Answer 16

Plants with only female flowers

Question 17

Andromonoecious

Answer 17

Plants with only male flowers

Question 18

Stamen

Answer 18

The male functional organ (androecium) are a series of stamens
The comprise a filament that supports the terminal anther
Filaments tend to be longer in anemophilus plants

Question 19

Pistel

Answer 19

The female functional organ (gynoecium) are a series of pistels
Comprises a stigma, the style and the ovule(s)
Stigma structurally and chemically complex – involved with pollen hydration, pollen recognition, pollen adhesion, pollen germination

Feathery in anemophilous plants

Can be sticky to collect pollen packets

Question 20

Perianth- petals and corolla

Answer 20

Petals and corolla

Petals are located above sepals; usually brightly coloured and fragrant (attract pollinators).

All of the petals on one flower make up the corolla

Question 21

Dicots

Answer 21

typically have sepals and petals in fours, fives, or multiples thereof.

Question 22

Monocots

Answer 22

Monocots typically have flower parts in threes or multiples of three.

Question 23

Perianth - sepals and calyx

Answer 23

The sepals are found below the petals and encase the rest of the flower when it is in bud and not yet opened.
All of the sepals on one flower make up the calyx.
Together, the sepals and the petals of a flower are called the perianth.

Question 24

Dicot sepals

Answer 24

Green
Leaf like

Question 25

Monocot sepals

Answer 25

Resemble petals

Question 26

Wind pollinated flowers

Answer 26

Often incomplete – e.g. grasses lack sepals and petals

Question 27

Types of inflorescence

Answer 27

Single Spike Racene Corymb Umbel Cyme Panicle Spadix Composite

Question 28

Catkins

Answer 28

incomplete – stamenate (i.e. only male parts)

Question 29

Nectarines

Answer 29

Important for pollinators

Question 30

Nectar

Answer 30

Complex mixture of sugars (e.g. fructose, glucose), amino acids and other compounds May contain other substances such as caffeine or nicotine