Copyright

Euglena: Characteristics, Classification & Structure

An error occurred trying to load this video.

Try refreshing the page, or contact customer support.

Coming up next: The Origin of Life on Earth: Theories and Explanations

You're on a roll. Keep up the good work!

Take Quiz Watch Next Lesson
 Replay
Your next lesson will play in 10 seconds
  • 0:05 Classification of Euglena
  • 2:16 Structure & Characteristics
  • 3:46 Lesson Summary
Add to Add to Add to

Want to watch this again later?

Log in or sign up to add this lesson to a Custom Course.

Login or Sign up

Timeline
Autoplay
Autoplay

Recommended Lessons and Courses for You

Lesson Transcript
Instructor: Derrick Arrington

Derrick has taught biology and chemistry at both the high school and college level. He has a master's degree in science education.

This world is full of fascinating unicellular organisms. In this lesson, you will learn about a widely studied microorganism known as Euglena. We will examine its way of life and how it is classified by scientists.

Classification of Euglena

If you go outside to a pond or stream and scoop up a bucket of water, you will probably have many microorganisms in the bucket. One very common one is known as Euglena. Euglena is a unicellular microorganism belonging to the kingdom Protista.

Members of kingdom Protista are mostly unicellular organisms that are found in damp places or in water. Protists are often considered a challenge to classify by scientists because of their unique characteristics. Some protists have chloroplasts and undergo photosynthesis to produce energy, making them plant-like. Other protists are completely heterotrophic, which means they eat other organisms and obtain their energy by means other than photosynthesis, making them animal-like. A few species of protists even live in damp places and feed off of decomposing matter, making them fungus-like. These variations, as well as the abundance of body types, have made them a challenge to classify.

Euglena belong to the phylum Euglenozoa. Members of this phylum are unicellular organisms mostly found in freshwater, with a few found in saltwater. The all have a flagellum to use for movement and have chloroplasts, but can also feed as heterotrophs. More specifically, they belong to class Euglenoida. All members of this class are found in freshwater and do photosynthesis or feed by diffusion of other organisms. They also have a tough outer coating known as a pellicle.

While further classification is somewhat disputed, most scientists agree that the common Euglena belongs to order Euglenales, family Euglenaceae and genus Euglena. The specific requirements for these groupings are vague, but they are known to contain organisms with similar characteristics of the Euglena we are studying in this lesson. As you can see, from the level of kingdom and down, the characteristics and requirements for classifying Euglena get more and more specific. Let's move on to learn about the structure and characteristics of these organisms.

To unlock this lesson you must be a Study.com Member.
Create your account

Register to view this lesson

Are you a student or a teacher?

Unlock Your Education

See for yourself why 30 million people use Study.com

Become a Study.com member and start learning now.
Become a Member  Back
What teachers are saying about Study.com
Try it risk-free for 30 days

Earning College Credit

Did you know… We have over 160 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Create an account to start this course today
Try it risk-free for 30 days!
Create An Account
Support