The following graph outlines some hormonal changes during pregnancy - HSC - SSCE Biology - Question 23 - 2023 - Paper 1
Question 23
The following graph outlines some hormonal changes during pregnancy.
Complete the table for TWO of the hormones graphed.
Hormone name
Function in pregnancy
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Worked Solution & Example Answer:The following graph outlines some hormonal changes during pregnancy - HSC - SSCE Biology - Question 23 - 2023 - Paper 1
Step 1
Hormone name: hCG
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Answer
Human chorionic gonadotropin (hCG) plays a crucial role in maintaining the early stages of pregnancy. It thickens the lining of the placenta and halts menstruation.
Step 2
Trimester where peak occurs: hCG
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Answer
The peak of hCG secretion occurs in the first trimester, around 10 weeks.
Step 3
Hormone name: Progesterone
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Answer
Progesterone is vital for maintaining the uterus lining throughout pregnancy. It also supports the growth of the uterus and stimulates hormones responsible for developing the babies' organs.
Step 4
Trimester where peak occurs: Progesterone
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Progesterone peaks during the third trimester, approximately at 38 weeks.
