Extended only
Fig. 1 is a diagram of the human female reproductive system.
Fig. 1
Table 1
function | letter | name |
releases oestrogen |
|
|
site of fertilisation |
|
|
site of implantation |
|
|
dilates during the process of birth |
|
|
Complete Table 1 to show the letter and the name of each of the structures that perform these functions.
Extended only
Fertilisation is the fusion of the nuclei of a male gamete and a female gamete resulting in a zygote.
State the number of chromosomes present in a human:
(i)
Female gamete
[1]
(ii)
Zygote
[1]
Extended only
Chlamydia is a sexually transmitted infection (STI).
Fig. 2 shows the number of reported cases of chlamydia in females in each age group in one country.
Fig. 2
Describe the results shown by the data in Fig. 2.
Chlamydia is caused by a bacterium.
(i)
Suggest a treatment for chlamydia.
[1]
(ii)
State the name of one other STI.
[1]
(iii)
Complete the sentences about the spread of STIs.
STIs are transmitted through the transfer of ............................................... during sexual contact. One way individuals can avoid the spread of STIs is to use a type of ............................................... contraception. One example of this type of contraception is ............................................... .
[3]
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