Difference Between Zoospore and Zygote

NEET'22 Crash Course

What is the Difference Between Zoospore and Zygote?

To differentiate between zoospore and zygote let us first learn what is zoospore and what is zygote. Both these terms are used in the explanation of reproduction in organisms. Zoospore is the medium through which asexual reproduction occurs and a zygote is a term used to describe the fertilized ova at a later stage of development after fusion. A zygote has various phases of development. A zygote is formed in sexual reproduction, after the fertilization of the ova.

What is Zoospore?

Zoospore is the asexual reproductive spore that is capable of moving and developing into a new individual without fusion. Zoospore uses a flagellum (Tinsellated flagella or Whiplash flagella) for locomotion. They are the means of asexual reproduction in some of the algae, fungi, and protozoans. Zoospores are produced by mitosis in the sporangium. as they are developed internally they are known as endogenous.

Morphological Types of Zoospore

There are different types of zoospore in eukaryotes some of them are mentioned below:

  • Opisthokont 

  • Anisokont

  • Heterokont 

What is a Zygote?

The fusion of two gametes, sperm cell, and egg cell is known as a zygote. It is also known as a fertilized egg or ovum. A zygote is formed in sexual reproduction. It has all the necessary genetic information which is required to form a new individual. The first discoveries on zygote formation were made by Oscar and Richard Hertwig in the 19th century. Some of the examples where zygote formation takes place are fungi, Plants, and humans.

Differentiate Between a Zoospore and a Zygote 

Below we will discuss some of the important difference between zoospore and zygote





Zoospores are the asexual spore seen in some of the species like plants and algae.

Zygotes are sexually produced diploid cells, 

Formed by the fusion of two haploid cells.


They are motile in nature because of flagella.

Zygotes are non-motile in nature as they don’t have flagella for locomotion.


Zoospores may be diploid or haploid. 

Zygotes are generally diploid.


After germination, they form into a new individual.

In zygote new individuals are formed after undergoing certain development from the embryo.


This is seen in lower kingdoms 

A zygote is seen in the higher kingdom like Plantae and Animalia.


It takes place in dispersal.

They take very little part in the dispersal


It is formed endogenously in zoosporangium

They are formed by the fusion of two haploid cells or gametes.


Here, we have discussed: “What is Zoospore and also Zygote?’’ and how to differentiate between zoospore and zygote. From the above discussion, we can conclude that zoospores are motile (due to flagella), naked protoplasmic bodies, and asexual reproductive structure. Zygotes are diploid membranes and non-motile in nature. They are formed by the fusion of two gametes through sexual reproduction. To distinguish between gamete and zygote is another of the common topics covered in studies of sexual reproduction.

FAQs (Frequently Asked Questions)

1. How Does Zoospore Differ from Zygote in Terms of Ploidy?

Answer. Both Zoospore and zygote are diploid in nature. Zoospores are formed by the mitotic division of sporangia which is diploid. In the zygote two haploid gametes, Sperm and ovum fuse to form a diploid Zygote. 

2. Why Do Fungi Reproduce Asexually?

Answer. Asexual reproduction is much faster compared to sexual reproduction. They reproduce asexually so that they can produce more numbers fungi. Asexual reproduction is dependent on many factors like climatic conditions, food availability, and when it undergoes asexual reproduction.

3. What Happens? When We Inhale Spore?

Answer. Spores are generally light in weight and can travel in the air. When the person inhales the spore along with the oxygen. The persons who develop diseases that include toxic pneumonitis, hypersensitivity pneumonitis, tremors, chronic fatigue syndrome, kidney failure, and cancer. It can be prevented by avoiding the moist area in the surrounding, Using a dehumidifier and air conditioner, using air filters for proper ventilation.