Intracellular Organelles

What's wrong, Cellnosuke?

Indeed, it can be confusing with so many items to remember. Let's go through them one by one.

For this lecture, I want you to grasp the overall picture, so we won't delve into specific details.

No need to worry. I have organized the necessary information so that you can understand it by listening to today's lecture.

Now, let's begin the lecture.

When it comes to understanding intracellular organelles, it's important to first grasp the key characters.

Yes, that's right. The key characters we'll be focusing on today are these six.

Don't worry, I'll summarize them as concisely as possible.

The first character is the nucleus. Just remember that it contains genetic information.

Talking about the nuclear membrane or nucleolus would make it longer.

Here, you just need to remember that the nucleus contains genetic information called chromosomes or chromatin.

The second character is mitochondria.

(So you're into muscle training...)

Mitochondria have fascinating stories, such as their symbiotic relationship with humans.

However, like the nucleus, talking about mitochondria in detail would make it lengthy.

Here, just remember that mitochondria generate ATP (adenosine triphosphate), which is essential for human movement.

The third character is ribosomes.

That's right. The detailed explanation involves the nuclear membrane and its connection to the endoplasmic reticulum, making it complex to understand.

So, just remember that ribosomes are responsible for protein synthesis.

The fourth one is the Golgi apparatus, also known as the Golgi body.

Is that so? This one adds sugar chains, called markers, to the proteins synthesized by the ribosomes.

You can interpret the markers as addresses. They are attached to the proteins to send them to the required destinations, like putting addresses on them.

The fifth one is the Lysosome. It is also sometimes called the "Lisosome."

That's right. It even confuses me.

However, their functions are completely different. Lysosomes are responsible for breaking down and digesting unwanted substances within the cell.

That's right. Considering their similar names, it's best to associate their functions to remember them correctly.

The fifth one is the Centriole. It works during cell division.

Have you ever wondered why the writings made with a permanent marker on your body disappear?

(This person doesn't get it.)

The skin cells undergo division and produce new cells. So, the reason the writings with a permanent marker disappear is that they are shed along with the old skin cells.

Exactly. It's not just the skin cells; most cells in the human body undergo cell division to generate new cells.

And the Centriole's job is to assist in the movement of chromosomes during cell division.

Now, let's summarize today's lesson.

That's an important aspect of studying physiology. When you delve deeper, the subject becomes filled with complex terminology.

That's why it's crucial to start by organizing and understanding basic information.

First, try to remember the names and functions of these six entities.

Once you can recall them, your studying will progress smoothly.

Well, that concludes today's lecture, even though it became quite lengthy.

Now, let's solve a few questions before we finish.