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Questions
Name the following:
Two hormones secreted from placenta.
Name 2 hormones secreted by placenta.
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Solution
Estrogens and progesterone.
RELATED QUESTIONS
Give an appropriate biological or technical term for the following:
The fluid which surrounds the foetus.
Name the following:
The fluid surrounding the developing embryo
Name the following:
The body part in which the embryo develops.
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.
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.
Mention three functions of the placenta.
Differentiate
Amnion and Chorion.
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’?
Complete the following sentences with appropriate word:
The placenta is ________permeable
Which of the following reproductive structures is responsible for secretion of hCG?
In human beings, the placenta is formed by ______.
Does the foetus inside the mother's uterus breathe?
Placenta produces certain hormones.
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?
Which characteristic describes the direction of blood flow through the umbilical arteries?
Which component of the placenta originates from the trophoblast of the blastocyst and is also called the chorion frondosum?
When does the placenta remain functional during pregnancy?
