Difference Between Volvox Paramecium and Euglena

The key difference between volvox paramecium and euglena is that volvox is a green alga that lives as colonies in freshwater while paramecium is a ciliate protozoan that resembles the shape of a shoe and euglena is a single-celled flagellate eukaryote which has both plant and animal features.

Kingdom Protista consists of diverse eukaryotic single-celled organisms which are not fungi, plants or animals. It mainly contains animal-like protozoans and plant-like algae. Volvox, paramecium and euglena are three types of protists. They all are single-celled organisms. They have nuclei, cytoplasm and special features.

1. Overview and Key Difference
2. What is Volvox
3. What is Paramecium
4. What is Euglena
5. Similarities Between Volvox Paramecium and Euglena
6. Side by Side Comparison – Volvox Paramecium vs Euglena in Tabular Form
7. Summary

What is Volvox?

Volvox is a single-celled ciliate or flagellate that lives as colonies (more than500 – 50,000 cells together). A colony appears as a hollow ball with many individual cells. Volvox is found in ponds, ditches and puddles. Volvox is a green alga.

Difference Between Volvox Paramecium and Euglena

Figure 01: Volvox

Similar to euglena, volvox has an eyespot which helps to sense light. Volvox is photosynthetic; hence, it makes its own foods. Moreover, volvox feeds on algae and many different kinds of plants. Volvox colonies move with the help of flagella. It reproduces through both sexual and asexual methods.

What is Paramecium?

Paramecium is a single-celled and slipper-shaped microorganism about 2 mm in size. Paramecium has two nuclei: macronucleus and micronucleus. It is a commonly found protist in freshwater such as in stagnant and warm water. Paramecium is motile and swims by beating the cilia.

Key Difference - Volvox vs Paramecium vs Euglena

Figure 02: Paramecium

Paramecium feeds on microorganisms and decaying plant matter. Paramecium reproduces via both sexual and asexual methods.

What is Euglena?

Euglena is a single-celled eukaryotic organism found in freshwaters such as ponds or marshes. Euglena can change its body shape. It shows both plant and animal characteristics. Euglena has a flagellum and is used to swim.

Figure 03: Euglena

Euglena has chlorophylls and is able to produce its own foods by photosynthesis. It can eat other small animals as well. Euglena reproduces asexually by binary fission. It splits into two halves and becomes two Euglena by dividing through mitosis. Euglena prefers warm temperatures to reproduce. Moreover, it has an eyespot to capture light.

What are the Similarities Between Volvox Paramecium and Euglena?

Volvox, paramecium and euglena are eukaryotes.
They are single-celled organisms that belong to Kingdom Protista.
They all have a nucleus.
They have food vacuoles and contractile vacuoles.
All three organisms can photosynthesize.
They all are found in freshwater.

What is the Difference Between Volvox Paramecium and Euglena?

Volvox is a green algae that lives as a colony and belongs to phylum Chlorophyta. Meanwhile, paramecium is a ciliate protozoan that lives as a single organism and belongs to phylum Ciliophora. But, euglena is a flagellate eukaryote that lives as a single organism and belongs to phylum euglenozoa or euglenophyta. So, this is the key difference between volvox paramecium and euglena.

The below infographic tabulates the differences between volvox paramecium and euglena in more detail.

Summary – Volvox Paramecium vs Euglena

Volvox, paramecium and euglena are three types of single-cell organisms belonging to Kingdom Protista. Volvox is a green algae while paramecium is a ciliate protozoan. Euglena is a flagellate single-cell organism which shows both plant and animal characteristics. They all are found in freshwater. Moreover, all three organisms can move. Thus, this summarizes the difference between volvox paramecium and euglena.

Reference:

1. Dijkstra, Jeanne, and Cees P. de Jager. “Density-Gradient Centrifugation.” SpringerLink, Springer, Berlin, Heidelberg, 1 Jan. 1998, Available here.
2. “Paramecium – Classification, Structure, Function and Characteristics.” MicroscopeMaster, Available here.
3. “Volvox, Chlamydomonas, and the Evolution of Multicellularity.” Nature News, Nature Publishing Group, Available here.