Canadian Researchers Discover Bacteria Cells That Does Not Contain Mitochondria

Canadian Researchers Discover Bacteria Cells That Does Not Contain Mitochondria


In high school biology, we all learned that mitochondria are the powerhouse of cell. For anyone who slept through it, mitochondria are the bacteria-like organelles found in the gooey cytoplasm of eukaryotic cells. Eukaryotes are a special subset of organisms that have a nucleus to house their DNA. Here you can see the noteworthy differences between eukaryotes and prokaryotes, which have no nucleus:

Mitochondria are different from other organelles for two important reasons.

Firstly, they are necessary for cells to produce energy as they are central to the process of cellular respiration.

Secondly, they contain their own DNA and are believed to have once existed as separate prokaryotic organisms that entered the cells of ancient eukaryotic organisms in a symbiotic exchange - ATP (energy) production for protection.

Because of the importance of their functions, scientists hypothesized for many years that they were indisputably necessary for the survival of a eukaryotic cell. A paper published in Current Biology last week, however, has brought all of that into question. The team from the University of British Columbia has reported the discovery of a single-celled eukaryotic organism, called Monocerconoides, native to the gut of the chinchilla, that apparently survives without our favorite organelle.

The researchers have guessed that, since oxygen (a necessity for cellular respiration to occur) is scarce in its native environment, mitochondria became more trouble than they were worth and were ejected by the cell.

Monocerconoides has simply adopted the DNA from a bacterium that performs the necessary functions of a mitochondrion floating freely in the cytoplasm. This discovery points to a whole host of possibilities for single-celled organisms and speaks to the incredible adaptability of life in general.

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Professors change students' outlook on learning

Which professor you get DOES matter.

The professor makes the class.

This statement could not be more true, in my opinion. Students can take courses on the most riveting topics, but not learn or understand due to a bad professor. Luckily, most of the professors I have encountered have been engaging and have opened my mind to learning new things.

I am currently studying journalism, which is a subject I already love. However, my professor Dr. B is so incredibly passionate about the field. Every class she shares stories and anecdotes about her time as a journalist for a major Canadian newspaper, and her enthusiasm is contagious. As a student journalist, it is exciting to hear stories from someone who has had vast experience in the field. Her excitement inspires me to be just as passionate about my future career.

I am also studying political science, and I am enrolled in the African Politics course. Prior to the class, I had no knowledge of African Politics. I took the course because I wanted to learn a new subject, and I knew that Dr. Ziemke would have endless experiences to share. Because I had previously taken her for International Relations, I knew that she had worked in Africa as a volunteer on the Peace Corps, and she had a deep connection to Africa. Her passion, humor, and stories are what make a three-hour long class bearable.

Passionate professors create passionate students who are prepared and excited to improve their fields of study. These professors shape and mold students, give students encouragement and support, challenge students, and help students reach their potential. Professors have so much power to influence the future through their students.

It is important to understand how much a professor can truly affect how invested students are in a topic. When students have subpar professors, they tune out and do what they need to do in order to pass. When presented with a passionate, engaging professor, students take a deeper interest in the material. They put forth more effort because they understand the value of the topic being studied and want to tackle any issues in that field.

I truly believe that professors have the power to make or break a class.

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I Changed My Major, And So Can You

​One of the hardest parts of college is choosing what you want to get out of college.

One of the hardest parts of college is choosing what you want to get out of college. There’s a lot to think about when you choose where you want to go. Do you want a big or small school, in or out of state, weather, the full college experience, etc.

A decision that is left to be made once you’ve already committed to a school is what you’re going to do after graduation. Your major often reflects this decision. Some know exactly what they want to do and others take a little more time to figure it out.

(AKA me)

I did running start in high school and graduated with my associate’s. Then I came to WSU to pursue a degree in public relations. I was sure working in PR for a non-profit was what I wanted to do but turns out, it’s not.

I am now pursuing a double major in Speech and Hearing Sciences and I plan to be a speech therapist after school. My plans changed quite a bit in the two years I was at WSU.

For anyone else who’s still thinking about what you want your major to be or maybe changing your major, here’s some advice from my experience with trying to figure out my life all at once.

1. Cut yourself some slack

It’s okay to change your mind or not know what you want to do yet. Don’t let people fool you, most of us don’t have it all figured out.

2. Talk to people in the careers you’re interested in

Going out and talking to people in the field you’re interested in is more helpful than talking to an advisor or your professor. When I was thinking about speech therapy, the advisors at WSU didn't know much about it and I learned more from talking to real speech therapists.

3. Take the baby steps

It’s overwhelming if you need to change your major or you start thinking too far into the future. It’s important to slow down and think about what needs to be done now and worrying about the rest when it’s time. When I decided to double major I started thinking about how I would need to apply for more loans, get an apartment, take the GRE but the only thing I needed to do at the time was email my advisor. I could figure out the rest later.

4. What’s important to you?

I’ve always wanted to work with kids and have a job that helps people. It’s also important for me to have a job that is flexible for when I have a family. After talking to family friends and looking into speech therapy, it sounded like the perfect career to me. I could work in the school district and have the same breaks as my future kids.

5. Will you be able to find a job?

Most people go to college to get a job. This is something to consider when choosing a major because some career fields are more competitive than others. If I'm going to pay for graduate school, I want to be able to find a job right away. Speech pathology is a growing field and I shouldn't have a problem finding a job.

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