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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
Give appropriate biological or technical terms for the following :
The fluid which surrounds the foetus
Name the following:
The canal through which the testes descend into the scrotum just before birth in human male child.
Complete the following table by writing the name of the structure or the function of the given structure:
| Structure | Function | ||
| 1 | Corpus luteum | 1 | …………… |
| 2 | ……………. | 2 | Produces male gametes in mass |
| 3 | Placental disc | 3 | …………………….. |
| 4 | . ……………. | 4 | Increases the force in uterine contractions during child birth |
| 5 | Umbilical cord | 5 | …………………. |
| 6 | Fallopian tube | 6 | ………………… |
Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.
Hyaluronidase.
- Is it an enzyme or simply a protein?
- What is its function?
What changes occur at the time of birth?
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’?
Does the foetus inside the mother's uterus breathe?
Placenta produces certain hormones.
Amniotic fluid serves to provide oxygen to the foetus.
Given below is the name of certain stage/substance related to reproduction and found in human body. Answer the questions related to it.
Morula.
- What is this stage?
- Name the stage which comes next to it?
