A flower

Question 1

What is the main reproductive part of the angiosperm plant?

Answer 1

the flower (inflorescenes)
These can be singular, in groups or a cluster

Question 2

What and where are the sepals?

Answer 2

They are the outermost flower parts (the bits at the bottom of a flower)
free or fused
supports petals when in bloom
protects flower when in bud

Question 3

what are the sepals collectively known as?

Answer 3

the calyx

Question 4

what is the function of the anther?

Answer 4

It contains pollen

Question 5

What is the function of the petals?

Answer 5

To attract pollinators

Question 6

What is the function of the ovule?

Answer 6

It holds the seeds ready to be fertilised

Question 7

What does the stigma do?

Answer 7

Receives pollen

Question 8

What does “corolla” mean/stand for?

Answer 8

collection of petals

Question 9

What are spores produced by?

Answer 9

mosses and ferns (not the angiosperms!)

Question 10

Describe a spore and how it grows into new plants

Answer 10

they are dust like particles, that grow into new plants by cell division

Question 11

what is a gametes?

Answer 11

the sex cells

Question 12

what is a zygote?

Answer 12

a fertilised egg cell

Question 13

how is a zygote formed?

Answer 13

Sperm joins with the ovum (female gamete) and forms a single cell- the zygote.

Question 14

describe the petals key functions

Answer 14

protect reproductive parts
highly coloured to attract pollinators-(not in wind pollinated plants though)

They can be free or fused

Question 15

Is the stamen a male or female organ?

Answer 15

male

Question 16

what does the stamen consist of?

Answer 16

the filament and anther

Question 17

what does the anther contain?

Answer 17

pollen- it splits open when the pollen grains are fully grown

Question 18

what is the stigma?

Answer 18

The flat disc shape on top of the style.

Question 19

How does the stigma trap pollen?

Answer 19

it is sticky/hairy to trap pollen from bees/insects

Question 20

what/where is the style?

Answer 20

it is the long stem that connects the stigma to the ovary

Question 21

what does the carpel contain?

Answer 21

the stigma/ style and ovary. (female parts)

Question 22

what and where is the receptacle?

Answer 22

it is at the top of the pedicle (flower stalk)

Flower parts are positioned on it.

Question 23

in monocotyledons eg: Tulip/Lillies, if the sepals look similar to the petals, what are they known as?

Answer 23

tepals

Question 24

how is a flower fertilised?

Answer 24

pollen from the anther of the male gamete transfers to the stigma (female gamete) by insects or the wind.

Question 25

A seed or fruit can only be formed once the?

Answer 25

flower has been fertilised.

Question 26

Describe the characteristics of a wind pollinated flower x 7

Answer 26

``` Small, insignificant flowers large, feathery stigmas Produce large amounts of pollen No scent Petals aren't colourful/attractive Pollen very light-no nectar Reproductive parts are outside the flower to catch the pollen ```

Question 27

what do insect pollinated plants depend on to be fertilised and what conditions are poor?

Answer 27

they depend on bees, birds and insects and they don't like cold/windy conditions.

Question 28

describe two differences between a monocotyledonous flower and a dicotyledonous flower

Answer 28

monocots: flowers with multiples of three, and have tepals. Think about the tulips-they all look like the petals Dicots: flowers in multiples of 5 Distinct petals and sepals