The main enzyme necessary for ovum (egg) penetration is acrosin.
Explanation:
During fertilization, the sperm releases enzymes from a structure called the acrosome (a cap-like structure on the sperm head). This process is called the acrosome reaction.
The key enzyme involved is:
Acrosin – It helps digest the zona pellucida, which is the protective outer layer surrounding the ovum. This allows the sperm to penetrate and fuse with the egg.
Other enzymes (such as hyaluronidase) assist in breaking through surrounding cells, but acrosin is the primary enzyme needed to penetrate the zona pellucida.
The specialized sex cell in a female is called an ovum, or egg cell. Each ovum is produced in the ovaries and contains half the genetic material necessary for fertilization. During ovulation, a mature ovum is released and can be fertilized by a sperm cell, leading to the formation of a zygote. The ovum is typically larger than sperm cells and plays a crucial role in reproduction.
Enzyme activity is affected by other molecules, temperature, chemical environment (e.g., pH), and the concentration of substrate and enzyme. Activators are molecules that encourage enzyme activity, and inhibitors are enzymes that decrease enzyme activity. Sometimes a cofactor is necessary for the enzyme to work.
The acrosome layer of sperm cells contain enzymes to break down the outer layer of the ovum to allow penetration by the sperm cell.
Found in the stomach
HC1 (hydrochloric acid) activates pepsinogen into its enzyme form Pepsin.
as soon as a single sperm fertilises the ovum a change of composition takes place in ovum's outer layer forming zona pellucida which prevents the penetration of other sperms.
Enzyme Hyarulonidase is found mainly.It helps to degrade membranes around ovum
The female gamete is an egg or ovum. It is produced in the ovaries and is necessary for sexual reproduction when fertilized by a male gamete (sperm).
RNA Polymerase
stomach
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.
Vitamin A
An ovum (egg cell) is much larger than a sperm cell. Average sizes: Human ovum: about 100 micrometers (µm) in diameter Human sperm cell: about 50–60 micrometers (µm) long (but the head is only about 5 micrometers long) Size comparison: If we compare diameter to diameter: The ovum (100 µm) is about 20 times larger than the sperm head (5 µm). In terms of volume: Because volume increases with the cube of the diameter, the ovum is thousands of times larger in volume than a sperm cell. So, the ovum is about 20 times larger in diameter and thousands of times larger in volume than a sperm cell.
ovum ovum ovum
The specialized sex cell in a female is called an ovum, or egg cell. Each ovum is produced in the ovaries and contains half the genetic material necessary for fertilization. During ovulation, a mature ovum is released and can be fertilized by a sperm cell, leading to the formation of a zygote. The ovum is typically larger than sperm cells and plays a crucial role in reproduction.
Enzyme activity is affected by other molecules, temperature, chemical environment (e.g., pH), and the concentration of substrate and enzyme. Activators are molecules that encourage enzyme activity, and inhibitors are enzymes that decrease enzyme activity. Sometimes a cofactor is necessary for the enzyme to work.
The spem head or acrosome cap contains digestive enzymes such as hyaluronidase and acrosin which are used to lyse the outer wall of the ovum during fertilization