Question

Label the following layers around ovum properly. 

• A. A - Zona Pellucida; B - Corona Radiata; C - Perivitelline Space.
• B. A - Corona Radiata; B - Zona Pellucida; C - Perivitelline Space.
• C. A - Corona Radiata; B - Perivitelline Space; C - Zona Pellucida.
• D. A - Perivitelline Space; B - Zona Pellucida; C - Corona Radiata.

Hint:

The layers surrounding the ovum—corona radiata, perivitelline space, and zona pellucida—play crucial roles in protection, fertilization, and sperm binding.

Answer 1

The Correct Option is C

Step 1: Understanding the layers surrounding the ovum. 
The ovum is surrounded by three primary layers: 

Corona Radiata: The outermost layer composed of follicular cells, which provides nourishment and protection to the ovum. 

Perivitelline Space: The fluid-filled space between the zona pellucida and the cell membrane of the ovum.

 Zona Pellucida: A glycoprotein layer surrounding the plasma membrane of the ovum, essential for sperm binding and fertilization. 

Step 2: Matching the labels. 
From the image:

 A: Represents the outermost layer, which is the corona radiate. 

B: Represents the space between the zona pellucida and the ovum, the perivitelline space. 

C: Represents the glycoprotein layer, the zona pellucida. 

Step 3: Conclusion. 
The correct labeling is: \[ A - Corona Radiata, B - Perivitelline Space, C - Zona Pellucida. \] \[ \therefore \text{The correct answer is: (C)}. \]