1 markStudents were discussing how to remember the difference between two groups of cells, ‘many, minute and motile’ or ‘few, fat and fixed’.
What group of cells were they referring to?
Male and female gametes
Animal and plant cells
Red and white blood cells
Xylem and phloem cells
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1 markThe statements below are about different hormones in the human body.
Which of these statements are correct for testosterone?
1 and 2
2 and 4
3 and 4
4 only
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1 markExtended Tier Only
The diagram shows a human sperm cell. The sperm cell has many mitochondria in the mid section.
How do the mitochondria help the sperm carry out its function?
They carry the genetic information from the male parent.
They release energy for movement.
They help the sperm enter the egg.
They make proteins.
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1 markWhich of the following is not an advantage of asexual reproduction?
Population numbers can increase rapidly when conditions are favourable.
Asexual reproduction is very time and energy efficient.
It leads to increased genetic variation within a population.
Asexual reproduction enables organisms to exploit suitable environments fast.
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1 markThe diagrams show 3 different species of pollen grains as they appear under a microscope. The diagrams are all to the same scale.
Which pollen grains are involved in insect pollination?
1 and 2
2 and 3
2 only
All of them
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1 markExtended Tier Only
The table below shows some advantages and disadvantages of sexual and asexual reproduction.
Which row is correct?
| advantages of sexual reproduction | advantage of asexual reproduction | |
| A | less population growth | only one parent needed |
| B | more energy efficient | gametes can be transferred by the environment |
| C | no transfer of gametes | does not compete with parent for nutrients |
| D | more genetic variation | faster |
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1 markHIV is an STI. The following statements are about changes that could occur in the body.
Which of these statements would be correct for HIV?
1 and 2
2 and 4
3 and 4
1 and 3
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1 markThe diagram shows the female reproductive system.
After ejaculation, which pathway will the male gamete take to fuse with the egg?
Vagina → cervix → uterus → oviduct
Ovary → oviduct → uterus → cervix
Vagina → uterus → cervix → oviduct
Ovary → uterus → cervix → vagina
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1 markThe diagram below shows a flower.
Which of these processes have taken place?
| pollination | fertilisation | |
| A | no | no |
| B | no | yes |
| C | yes | yes |
| D | yes | no |
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1 markAn experiment was set up with four test tubes as shown in the diagram below and placed in the dark.
In which conditions would the seeds germinate first?
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1 markThe diagram shows the menstrual cycle. This is a 28 day cycle.
Which time range in the cycle is the woman most likely to get pregnant?
Days 1 - 4
Days 7 - 10
Days 13 - 16
Days 20 - 23
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1 markGerminating seeds were placed in different temperature and light conditions as shown in the table below.
| sample | temperature / °C | light |
| 1 | 20 | absent |
| 2 | 20 | present |
| 3 | 4 | absent |
| 4 | 4 | present |
A seedling was removed from each experiment after 7 days.
Which seedling was from sample 2?
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