Unit 3 Sht_8

Sht 3_8

The diagram below shows some of the structures of a flower. Four of these same structures are arrowed.

 

 

The list below gives the structures of some parts of the flower.

a) In your jotter, copy and complete the table to match the correct letter to the arrows in the diagram.

b) In your jotter, copy and correctly complete the sentence below:

Pollination is the transfer of pollen from the SEPAL/STIGMA/ANTHER to the OVARY/ANTHER/STIGMA.

c) Flowers are the organs of sexual reproduction in plants. What advantage do plants gain from sexual reproduction?

2. The diagram below represents part of a flower just after pollination has taken place.

a) Name structure A

b) Describe the sequence of events which occurs after pollination in the flower in the diagram and which leads to the formation of a fertilised ovule.

Your answer should be presented as 4 separate stages.

 

 

 

 

 

 

3. Trees can be grown from berries, cuttings, nuts or seeds.

During 2011, a pupil collected the appropriate parts from the tress named in the table below.

a) Name a tree which can be grown from winged seeds.

b) Which tree can be grown in October 2011 from nuts?

c) Name the part of the tree, collected in August 2011, which can be grown in both August 2011 and Spring 2012.