answersLogoWhite

0


Want this question answered?

Be notified when an answer is posted

Add your answer:

Earn +20 pts
Q: When is the zona pellucida form?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is a zona pellucida?

A zona pellucida is a glycoprotein membrane surrounding the plasma membrane of an oocyte.


The zona pellucida is formed as the follicle becomes a secondary follicle True or False?

False. The zona pellucida is formed as the primary oocyte within the primordial follicle begins to grow and develop into a secondary follicle.


How Fertilized zygote limit the entrance of a single male gamete?

The zona pellucida does.


The non-cellular coating that forms around an oocyte?

The non-cellular coating around an oocyte is called the zona pellucida. It is a glycoprotein-rich layer located outside the plasma membrane of the oocyte and plays a critical role in fertilization by interacting with sperm.


What is the structure that helps assure only a single sperm fertilizes an egg?

The zona pellucida is a glycoprotein layer surrounding the egg that helps prevent multiple sperm from fertilizing it. Upon fertilization, the zona pellucida changes its structure to prevent other sperm from entering the egg.


What is the thick protein shell around a human egg?

The zona or zona pellucida is the thick protein shell around a human egg. In order for the egg to become fertilized, the sperm has to break through the zona.


What is the glycoprotein layer between the oocyte and the granulosa cells of an ovarian follicle called?

The glycoprotein layer between the oocyte and the granulosa cells of an ovarian follicle is called the zona pellucida. It plays a crucial role in mediating interactions between the oocyte and surrounding cells during ovulation and fertilization.


What destroys the sperm receptors on the surface of oocyte?

The acrosome reaction, triggered by the binding of sperm to the zona pellucida of the oocyte, releases enzymes that help degrade the zona pellucida. This process ultimately leads to the disruption of the sperm receptors on the surface of the oocyte, allowing only one sperm to successfully fertilize the egg.


How does the ovum prevent multiple penetrations of sperm cells along it's periphery?

The ovum has a protective layer called the zona pellucida that hardens after the entry of one sperm cell, preventing additional sperm cells from penetrating. This process is known as the zona reaction and ensures only one sperm cell fertilizes the egg.


What is the function of the cortical reaction?

The cortical reaction is a process that occurs in fertilization where the released enzymes and calcium ions cause changes in the egg's zona pellucida to prevent polyspermy, the entry of multiple sperm into the egg. This helps ensure that only one sperm fertilizes the egg, which is essential for successful development.


How does the sperm penetrate the oocyte?

The sperm penetrates the oocyte by first binding to the zona pellucida layer surrounding the oocyte. This triggers the acrosome reaction, releasing enzymes that help break down the zona pellucida. Once the sperm penetrates this layer, it fuses with the oocyte membrane to release its genetic material.


What membrane does the sperm penetrates for human development to begin?

The sperm penetrates the zona pellucida, a glycoprotein membrane surrounding the egg, in order to fertilize it. This event triggers the release of cortical granules that form the fertilization envelope, preventing entry of additional sperm and initiating the development of the zygote.