3.2 Coordination and control – the endocrine system

Hormones are commonly used in biochemical methods of contraception.

Which two female reproductive hormones are typically found in the combined oral contraceptive pill?

Choose the two correct answers from the list below:

[2]

How do these two hormones act together to prevent pregnancy?

[2]

Hormonal contraceptives can be administered in self-managed or clinical settings. Compare these two options:

Method 1 (Combined Oral Contraceptive Pill): A pill taken daily at the same time for 21 days, followed by a 7-day pill-free interval. Fewer than 1 in 100 women will get pregnant in a year with perfect use. However, typically about 9 in 100 women will get pregnant in a year.
Method 2 (Contraceptive Implant): A small flexible rod is inserted under the skin of the upper arm by a trained healthcare professional, where it continuously releases hormones. It remains effective for 3 years. Fewer than 1 in 1000 women using this implant get pregnant in a year.

Which method is more successful in typical, everyday use? Evaluate the information provided to explain why.

[4]

Hormonal contraceptives can be administered in self-managed or clinical settings. Compare these two options:

Method 1 (Combined Oral Contraceptive Pill): A pill taken daily at the same time for 21 days, followed by a 7-day pill-free interval. Fewer than 1 in 100 women will get pregnant in a year with perfect use. However, typically about 9 in 100 women will get pregnant in a year.
Method 2 (Contraceptive Implant): A small flexible rod is inserted under the skin of the upper arm by a trained healthcare professional, where it continuously releases hormones. It remains effective for 3 years. Fewer than 1 in 1000 women using this implant get pregnant in a year.

Which method is more successful in typical, everyday use? Evaluate the information provided to explain why.

3.2 Coordination and control – the endocrine system Questions