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Question Bank [2022] — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYQuestion Bank [2022]3 Marks
Question
Human pregnancy shows three prominent trimesters. Answer the following question based on these trimester.
  1. What is morning sickness during the first trimester?
  2. Name the hormone secreted in the second trimester.
  3. The organ which secretes hormone in second trimester is
✓

Answer

  1. Progesterone level becomes high and the menstrual cycle is suspended till the end of pregnancy and the mother’s body also undergoes rapid changes. In this period, the mother experiences ‘morning sickness’ (nausea, vomiting, mood swings, etc.).
  2. The hormone secreted during the second trimester is Progesterone.
  3. The organ which secretes hormone in the second trimester is the placenta.

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