The combined contraceptive pill contains artificial versions of oestrogen and progesterone - Edexcel - GCSE Biology - Question 6 - 2022 - Paper 1
Question 6
The combined contraceptive pill contains artificial versions of oestrogen and progesterone.
(i) Explain how the combined contraceptive pill prevents pregnancy.
(ii... show full transcript
Worked Solution & Example Answer:The combined contraceptive pill contains artificial versions of oestrogen and progesterone - Edexcel - GCSE Biology - Question 6 - 2022 - Paper 1
Step 1
Explain how the combined contraceptive pill prevents pregnancy.
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Answer
The combined contraceptive pill primarily prevents pregnancy through hormonal regulation. It inhibits the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH), which are crucial for egg maturation and ovulation. Without the spike in these hormones, ovulation does not occur, preventing the release of an egg. Additionally, the pill thickens the cervical mucus, which acts as a barrier to sperm, significantly reducing the chances of fertilization.
Step 2
Give one other disadvantage of using the combined pill as the only method of contraception.
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Answer
One disadvantage of using the combined pill as the only method of contraception is that it does not provide protection against sexually transmitted infections (STIs).
Step 3
Explain the effect of type 2 diabetes on the body.
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Answer
Type 2 diabetes results in elevated blood glucose levels due to the body's inability to properly regulate insulin. In this condition, cells become resistant to insulin, which means they do not respond effectively to this hormone. Consequently, glucose remains high in the bloodstream as the liver fails to convert it into glycogen for storage. This can lead to symptoms such as hyperglycemia, fatigue, and further complications affecting various organs if not managed properly.