Which of the following lists the correct order of structures...

Name: Problem 1, Chapter 21: Human Biology Concepts and Current Issues
Uploaded: 2021-08-27T23:26:04-08:00
Duration: 1 min 21 s
Channel: Joanna Quigley
Description: Which of the following lists the correct order of structures through which a sperm must pass to accomplish fertilization? a. zona pellucida, corona radiata, secondary oocyte plasma membrane b. zona pellucida, secondary oocyte plasma membrane, corona radiata c. ovum plasma membrane, corona radiata, zona pellucida d. corona radiata, zona pellucida, secondary oocyte, plasma membrane

Which of the following lists the correct order of structures through which a sperm must pass to accomplish fertilization? a. zona pellucida, corona radiata, secondary oocyte plasma membrane b. zona pellucida, secondary oocyte plasma membrane, corona radiata c. ovum plasma membrane, corona radiata, zona pellucida d. corona radiata, zona pellucida, secondary oocyte, plasma membrane

Which of the following lists the correct order of structures through which a sperm must pass to accomplish fertilization?
a. zona pellucida, corona radiata, secondary oocyte plasma membrane
b. zona pellucida, secondary oocyte plasma membrane, corona radiata
c. ovum plasma membrane, corona radiata, zona pellucida
d. corona radiata, zona pellucida, secondary oocyte, plasma membrane

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Key Concepts

Fertilization Process

Fertilization is the process by which a sperm and an oocyte unite to form a zygote, initiating the development of a new organism. This process involves a series of sequential interactions between the sperm and the oocyte's surrounding structures, ensuring that only a single sperm successfully fuses with the oocyte to combine genetic material.

Corona Radiata

The corona radiata is the outermost layer of granulosa cells that surround the oocyte. It serves as the initial barrier the sperm encounters during fertilization and provides essential nutritional and biochemical support to the oocyte.

Zona Pellucida

The zona pellucida is a glycoprotein-rich extracellular matrix that encases the oocyte beneath the corona radiata. It plays a critical role in sperm binding, species-specific recognition, and the induction of the acrosome reaction, which enables the sperm to penetrate this layer.

Oocyte Plasma Membrane

The oocyte plasma membrane is the cell membrane of the mature oocyte. After the sperm has successfully traversed the corona radiata and the zona pellucida, it must fuse with the oocyte plasma membrane to deliver its genetic material and complete fertilization.

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