Pg 60 Angiosperm

Question 1

What is an angiosperm

Answer 1

Plants with flowers which produce their ovules enclosed in an ovary

Question 2

What is a flower

Answer 2

Organ of sexual reproduction, it contains the reproductive organs and often will attract pollinators

Question 3

Hermaphrodite flowers

Answer 3

Flowers that make both male male and female gametes

Question 4

What are pollen grains produced by

Answer 4

Anthers

Question 5

Where are the male gametes found

Answer 5

Inside the pollen grains

Question 6

Where are female gametes found

Answer 6

Inside the ovules

Question 7

What are the ovules enclosed by

Answer 7

The ovary

Question 8

The female part of the flower

Answer 8

Carpel

Question 9

Carpel

Answer 9

Ovary, style and stigma

Question 10

What does each mature ovule contain

Answer 10

A female gamete

Question 11

What happens once the female gamete in the ovule is fertilised by the male gamete

Answer 11

The ovule develops.
The ovary develops into fruit

Question 12

The style: function

Answer 12

Holds the stigma in the most favourable position to receive pollen.

Question 13

Stigma: function

Answer 13

Sticky part that receives pollen

Question 14

Male part of the flower

Answer 14

The stamen

Question 15

What does the stamen consist of

Answer 15

The anther and filament

Question 16

Anther function

Answer 16

The structure that forms pollen grains in which the male gametes are found

Question 17

Filament function

Answer 17

Holds the anther in the best position for pollen to be released

Question 18

Cross pollination

Answer 18

Pollen is transferred from the anther of a flower of one plant to the stigma of a flower of another plant of the same species

Question 19

What does cross pollination result in

Answer 19

Genetic variation

Question 20

Self pollination

Answer 20

The pollen is transferred from the anther to the stigma o for same flower or the another flower on the same plant

Question 21

What does self pollination result in

Answer 21

It does not result in genetic variation

Question 22

Pollination

Answer 22

The transfer of pollen from the anther to a stigma, thereby enabling fertilisation and reproduction

Question 23

Types of pollination

Answer 23

Self pollination and cross pollination

Question 24

How can self pollination be prevented

Answer 24

• In bisexual flowers: the anthers and stigmas ripen at different times. Most commonly the anther ripen first