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प्रश्न
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?
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उत्तर
- Hyaluronidase is an enzyme.
- The acrosome at the top of the head of the sperm secretes an enzyme (hyaluronidase), which facilitates entry of the sperm into the egg by dissolving the wall of the ovum.
संबंधित प्रश्न
What is the significance of amniotic fluid?
Name the following:
The body part in which the embryo develops.
Name the following:
The canal through which the testes descend into the scrotum just before birth in human male child.
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.
Give Reasons
The full-grown human embryo respires but does not breathe.
Complete the following sentences with appropriate word:
The period of complete development of the fetus until birth is termed ______.
Complete the following sentences with appropriate word:
The expulsion of the fetus from the body to the mother in a human female is called __________.
Write the functional activity of the following structure:
Uterus
Which of the following hormones is produced by ovary?
