how is the structure of a sperm different from an ovum ?
Answers
Sperm and ovum are the gametes produced by vertebrates. More specifically, sperm is the male gamete while the ovum is the female gamete. These two cells also have contrasting size – for instance, the sperm is the smallest cell in the human body while the ovum is the largest. Read on to explore more differences between the two.
Difference Between Ovum and Sperm (Human)
Sperm
Ovum
Definition
Sperm is the male gamete
Ovum is the female gamete
Motility
Motile (flagella)
Non-motile
Size
The smallest cell in the human body
The largest cell in the human body
Mitochondria
Centrally located
Scattered in the cytoplasm
Cytoplasm
Present in very small amounts
Present in large amounts
Nucleoplasm
Absent
Present (called germinal vesicle)
Chromosomes
Contains X or Y chromosomes
Contains only X chromosomes
Centrioles
Present
Absent
Production
Produces in the testes
Produced in the ovary
Segmentation
Segmented into head, neck, middle and tail
No such external segmentation
Formation
One spermatogonium produces four sperms
One oogonium produces only one ovum
Surrounded by
Plasma membrane
Egg envelopes
Related Links:
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Human Reproductive System – Male and Female Reproductive Organs
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Answer:
Sperm and ovum are the gametes produced by vertebrates. More specifically, sperm is the male gamete while the ovum is the female gamete. These two cells also have contrasting size – for instance, the sperm is the smallest cell in the human body while the ovum is the largest. Read on to explore more differences between the two.
Difference Between Ovum and Sperm (Human)
Sperm
Ovum
Definition
Sperm is the male gamete
Ovum is the female gamete
Motility
Motile (flagella)
Non-motile
Size
The smallest cell in the human body
The largest cell in the human body
Mitochondria
Centrally located
Scattered in the cytoplasm
Cytoplasm
Present in very small amounts
Present in large amounts
Nucleoplasm
Absent
Present (called germinal vesicle)
Chromosomes
Contains X or Y chromosomes
Contains only X chromosomes
Centrioles
Present
Absent
Production
Produces in the testes
Produced in the ovary
Segmentation
Segmented into head, neck, middle and tail
No such external segmentation
Formation
One spermatogonium produces four sperms
One oogonium produces only one ovum
Surrounded by
Plasma membrane
Egg envelopes
Related Links:
More Difference Between
Human Reproductive System – Male and Female Reproductive Organs
Explore other fascinating topics by register at BYJU’S Biology
BIOLOGY Related Links
Biology App Female Reproductive Organs
Endoplasmic Reticulum Function Glycolysis Cycle
What is Rainwater Harvesting Difference Between Dna and Rna
Ecology Definition Animal Tissue
Types of Joints Meristematic Tissue