Materi Biologi: Biologi Sel | Konsep Dasar, Sejarah & Teori Sel | Part 1

Hello Edsen friends, greetings smart with me, Alex Tutor Biology Edsen Dot ID In this video we will discuss the matter of cell biology Edsen friends, learn about cell biology, not to be separated from our knowledge about cell theory

So what is the content of the cell theory and what is its history? Well, to learn that we have to start from cell discovery. So for cell biology or cytology, it develops with the presence of the development of the observation instrument that we use, namely a microscope. Well, for cell discovery here, it was published by the scientist Robert Hooke.

Robert Hooke here observed a net on the plant. So what he saw was more or less like there were rooms. So there are small ones like this. Of course, it should be smaller. I just made it easier to see. So when Robert Hooke observed what?

the web, like that, Robert Hooke saw it, oh, it's like a room, so this picture reminds Robert Hooke of a room, especially a room in the cemetery, because there is a church influence, so this cemetery room

similar to what is observed, right? Well then, in the end, Robert Hooke named it, "Oh, this is what we call a cell." So, Robert Hooke was the first person to give the terminology "cellula" or "kelula" or "kelule" for the plural, more than one, for a structure like this.

With the knowledge that what is seen is a organizer, a form that is seen using a microscope, then the research began to observe structures like this. Because back then people didn't know that there was a cell and we were actually organized from cells.

Well, from here too, because there is this news, because we already know, oh, this is finally what we call a sale, then people start to see various things, whether there is a sale or not. Well, like what Anthony did, Anthony Van Levenhook, okay?

Anthony Van Leeuwenhoek observed various objects. So, Anthony Van Leeuwenhoek finally made a simpler microscope using a single lens. So, here he made a simple microscope with a single lens.

really practical, so he observed, for example, a water of a pond, then see the plaque on the teeth, Anthony van Leeuwenhoek found small animals, small animals, then by Anthony van Leeuwenhoek named as animal

or animalcula, which means small animals. Now we know it as a microorganism. So, friends, because it looks like wow, a lot of things have to be observed, so let's start the research about

cytology or cell biology. Well, let's get to two important scientists from Germany named Sliden and Schwan. Sliden and Schwan. Well,

Schleiden and Schwan, you may have heard of the word Schwan, the Schwan cell, it was taken from his name as well. So Schleiden here is a botanist, so his observation is plants, while Schwan is an expert in the field of zoology or animals.

So, Sliden observed the plant and he saw it using a microscope and he found that the plant was arranged from the cell. So here the conclusion is that the plant is arranged from the cell.

from the cell and this is something that is quite surprising and something new because it's not expected, how can it be? Well, friends can see how important the discovery of the cell is. Well, then, that's what Xuan saw. Xuan observed a network and he took a conclusion too, oh it turns out

animal, here it is also composed of cells. From these findings and supported by the findings of other scientists and some conclusions, in the end we will get what is called the theory of cells.

So actually when we talk about the theory of the cell, this is mainly arranged by Sliden and Schwann. So from the observation results, we get a kind of conclusion, so we get what is called the theory of the cell.

Well, let's register the theory of the cell, what does it sound like? For what is presented by Sliden and Swan, the first is to state that all living beings here are arranged

by cells, all living things are arranged by cells. Then from here too, Slidener-Schwan also stated that cells are said to be a structural unit

the smallest. So we get this from the conclusion of Sliden and Schwann. So, for all living beings surrounded by cells, cells are the smallest structural unit of living beings. This is what we call the cell theory in the early days.

Well, maybe you remember that there are actually three cell theories, right? Well, that's right. So, after this cell theory is revealed,

there is a kind of question that asks where the cell is from, and this causes a lot of debate because there is no one who really observes it. For example, some people think that the cell appears because of the crystallization process. So, friends, here appears a

a new sentence from the cell theory that you may remember, which states that Omnis Cellula E Cellula, which means that all cells are from cells. Well, I complete it, the previous cell.

So this is observed by, actually there is a lot of debate who observed it first, but the one who is usually known is Rudolf Virchow.

Vir Chow. So, the Vir Chow rule will finally complete the third component of the Cell Theory. So, we will get a Cell Theory that contains three sentences. The first, all living beings are arranged by cells or arranged from cells. The second, cells are the smallest structural units of living beings and all cells that exist now come from previous cells. Okay?

Well then along with the development of time and of course the efforts of research by many scholars the theory of cells is then still being perfected, what is the example, namely the concept where it turns out that cells perform a function or a reaction, so for

Second point, the cell is the smallest structural unit in the human life, then it will be complemented by adding the cell is a structural and functional unit.

smallest of living beings. The meaning of the smallest structural unit means that this is a unit that cannot be divided again in the context of biology, in the context of life. And from here,

We can see that cells actually consist of many structures. Functionally, it means that cells carry out a reaction. And in biology, the one that carries out a reaction that can live is the smallest one, the cell.

So these are the three more complete cell theories. All living cells are made up of cells. Cells are the smallest structural and functional units in life. And all cells are from the previous cells.

Well then, friends, actually for the cell theory here, then it is still developed into a more modern cell theory, namely here it will usually be added, I separate it here, what is it? That is to say that the activity of the organism is a total activity, right?

from the cell. That's why, because basically, we are organized from the cell. So if the cell does a function and in a way of course it is an activity from one body. Then for the next point, which is what? That is to say that the flow of energy occurs

in the cell, where this energy flow we can assume as metabolism. For metabolism, remember in class 12 studies stated that metabolism is all chemical reactions that occur in the body.

Hi, then for the next concept here states that basically, that's it, cells contain what's called DNA, that's it, and RNA, that's it, friends, you must

will find this about DNA and RNA in more detail when we get to the discussion about genetic matter so don't forget to understand what is DNA what is RNA but what is more to build a good foundation friends must understand that for this DNA, it's genetic matter, it's material that brings information

attribute inheritance, so here is the material or substance that carries the attribute or

here it is said to contain the term that we call a gene red hair gene, black hair gene, then a gen of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus of the genus

with other cells and if we talk about other cell contexts, it means for example animal cells with plant cells, cell species 1 with species 2, so based on the foundation

the chemical ingredients are more or less the same. Okay? Then, for the next addition is, all living things are organized from cells, right? Then this word will be perfected, so all living things are organized by one or more. Pressing that

for life there are unicellular, there are multicellular then from the cell theory that is described here we can finally conclude what we call a cell then from the whole theory of this cell we can state that a cell is a structural unit

functional units and hereditary units or the smallest attributes of living beings. So from a lot of research and from various conclusions, in the end we reached the definition of what is a cell in biology.

Well, friends, Edsen, here is the material discussion video about cell biology. See you in the next video, hopefully useful. Greetings, Pintar!

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