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Draw and structure the ovum?
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Draw and structure the ovum?
Structure of an Ovum
An ovum, also known as an egg cell, is the female reproductive cell in animals and humans. It is the largest cell in the female reproductive system, and its structure is adapted to its function of fertilization and embryonic development. The structure of an ovum can be divided into three main parts:
1. Zona Pellucida
The zona pellucida is a thick, transparent layer that surrounds the ovum. It is made up of glycoproteins and acts as a protective barrier that prevents multiple sperm from fertilizing the ovum. The zona pellucida also plays an important role in the early stages of embryonic development by regulating the transport of nutrients and waste products.
2. Cytoplasm
The cytoplasm of the ovum contains various organelles that perform specific functions necessary for fertilization and embryonic development. These organelles include:
- Mitochondria - provides energy for the ovum
- Lysosomes - breaks down nutrients for the ovum
- Endoplasmic reticulum - involved in protein synthesis
- Golgi apparatus - modifies and packages proteins
3. Nucleus
The nucleus of the ovum contains the genetic material, which is in the form of chromosomes. The ovum contains only one set of chromosomes, which is half the number found in somatic cells. This allows for the union of the ovum and sperm to create a zygote with a complete set of chromosomes.
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Draw and structure the ovum? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Draw and structure the ovum? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Draw and structure the ovum?.
Draw and structure the ovum? for Class 9 2025 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Draw and structure the ovum? covers all topics & solutions for Class 9 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Draw and structure the ovum?.
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