Use reproduction evidence from plant and human contexts: compare reproductive methods, interpret diagrams and design germination or pollen investigations.
The diagram shows a flower with some structures labelled.
Which structure is the style?
P
Q
S
T
Which structure releases pollen?
P
R
T
U
On which structure do the pollen grains germinate?
P
R
S
U
This flower is insect-pollinated.
Describe how structures P, R and T would be different in a wind-pollinated flower.
P
R
T
Flowering plants can reproduce asexually.
Give an example of a natural method of asexual reproduction in plants.
Give an example of an artificial method of asexual reproduction in plants.
Give three differences between asexual and sexual reproduction.
1
2
3
The diagram shows the human female reproductive system.
Which label shows where ovulation occurs?
Which label shows where fertilisation usually occurs?
The diagram shows the changes in thickness of the uterus lining and levels of two hormones produced by the ovary during a menstrual cycle.
Hormones X and Y are produced by the ovaries.
Name X and Y.
X
Y
Explain the function of hormone X during the menstrual cycle.
The diagram shows a human fetus developing in the uterus.
Explain how the structure of the placenta enables the efficient exchange of substances between the fetus and the mother.
A species of grass has a diploid chromosome number of 12.
The diagram shows a flower from the grass plant.
Explain two ways this flower is adapted for wind pollination.
1
2
Grass plants can also be produced by asexual reproduction.
New plants are produced from the roots of a parent plant.
Describe why it is an advantage for commercial growers to produce plants by asexual reproduction.