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प्रश्न
Which of the following cannot pass readily through the placenta to the foetus?
पर्याय
Antibodies
Amino acids
Alcohol
Haemoglobin
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उत्तर
Haemoglobin
Explanation:
Haemoglobin does not quickly transfer from the placenta to the foetus.
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संबंधित प्रश्न
Name the following:
The body part in which the embryo develops.
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.
Given below are the names of certain stages/substances related to reproduction and found in human body. Answer the questions related to them.
Gestation
• What is its meaning?
• How long does it normally last?
Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.
Placenta
- What are the two sources that form placenta?
- Name any two main substances which pass from foetus to mother through placenta.
- Name any two hormones it produces.
Describe briefly the ways how a mammalian embryo is respires
The diagram given below is that of a developing human foetus in the womb. Study the same and then answer the questions that follow:
- Name the parts '1' to '5' indicated by guidelines.
- What term is given to the period of development of the foetus in the womb?
- How many days does the foetus take to be fully developed?
- Mention two functions of the parts labelled ‘2’ other than its endocrine function.
- Name the hormone (anyone) produced by the part labelled ‘2’.
- What is the function of the part marked ‘3’?
Give Technical Term:
Name a membrane that surrounds the fetus and secretes a protective fluid.
Write the functional activity of the following structure:
Amnion
Heart and blood vessels have been formed by the end of five weeks of pregnancy.
Mother's blood flows into the foetus through placenta.
