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प्रश्न
Give Reasons
The full-grown human embryo respires but does not breathe.
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उत्तर
The full-grown human embryo respires because the dissolved oxygen in the mother’s blood diffuses into the embryo and is used in the oxidation of glucose in the cells with the liberation of energy. However there are no breathing movements as the lungs lie collapsed in the embryo and the only function after the fetus is expelled from the mother’s body. Therefore no breathing movements in the embryo as it receives oxygen by diffusion of gases.
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संबंधित प्रश्न
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.
Fertilisation occurs in vagina.
Differentiate between:
Impotency and sterility
Correct and rewrite the statements by changing the biological term that is underlined for the statement:
The protective sac which develops around the developing embryo is called the Pericardium.
Describe briefly the ways how a mammalian embryo is protected
Describe briefly the ways how a mammalian embryo is respires
Differentiate
Amnion and Chorion.
Complete the following sentences with appropriate word:
The placenta is ________permeable
Write the functional activity of the following structure:
Amnion
During pregnancy, which hormones are secreted by the placenta?
List the substances which the foetus receives from the mother through placenta.
