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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.
संबंधित प्रश्न
The exact location of the Amnion
Match the items in column I with those in column II and write down the matching pairs (some may not match)
| Column I | Column II | ||
| a | Acrosome | 1 | An embryo which looks like human baby |
| b | Gestation | 2 | Luteinizing hormone |
| c | Menopause | 3 | ovum producing cells |
| d | Foetus | 4 | complete stoppage of menstrual cycle |
| e | Oogenesis | 5 | spermatozoa |
| f | Ovulation | 6 | Complete stoppage of menstrual cycle. |
| 7 | Time taken by a fertilized egg till the delivery of baby |
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?
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.
Write the functional activity of the following structure:
Amnion
In human beings, the placenta is formed by ______.
Name the following:
Two hormones secreted from placenta.
How are carbon dioxide and urea, excreted by the foetus, removed?
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?
Distinguish between the following pair:
Placenta and umbilical cord
