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Question
Name the following:
Two hormones secreted from placenta.
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Solution
Estrogens and progesterone.
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RELATED QUESTIONS
The exact location of the Amnion
State whether the following statements are TRUE (T) or FALSE (F):
Rewrite the wrong statement by correcting only one word either at the beginning or at the end of the sentence.
Nutrition and oxygen diffuse from the mother’s blood into the foetus’s blood through amnion.
Describe briefly the ways how a mammalian embryo is respires
Give Reasons
The full-grown human embryo respires but does not breathe.
The haemoglobin of a human foetus ______.
Match the respiratory surfaces to the organisms in which they are found.
| Organ/ cells | Hormones | ||
| (i) | Corpus luteum | (a) | HCG |
| (ii) | Leydig's cells | (b) | Estrogen |
| (iii) | Placenta | (c) | Progesterone |
| (iv) | Graafian follicle | (d) | Testosterone |
Mention any two functions of the human foetal placenta.
Assertion (A): The foetus respires but does not breathe.
Reason (R): The maternal blood supplies oxygen to the foetus through placenta.
Placenta produces certain hormones.
Amniotic fluid serves to provide oxygen to the foetus.
