Which function is performed by the placenta during pregnancy?
Correct answer: B. It exchanges oxygen, nutrients and wastes
- A. It produces sperm for the developing fetus
- B. It exchanges oxygen, nutrients and wastes
- C. It stores mature ova for later fertilization
- D. It directly opens the cervix during labour
Explanation
The placenta provides exchange of oxygen, nutrients and waste products between maternal and fetal blood without normally mixing them directly. It also produces important hormones, but it does not produce sperm or store ova.
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About Reproductive System
The reproductive system covers the male and female reproductive organs, gamete formation, the menstrual and ovarian cycles, fertilization, implantation and pregnancy. It explains the roles of FSH, LH, oestrogen, progesterone and testosterone, while distinguishing spermatogenesis from oogenesis and the reproductive organs from the accessory glands.
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