Regardless of which of the two conditions mentioned above, one thing is consistent: cells with these two organelles have stronger survival advantages, and they are undoubtedly more adaptable to the current environment than cells without these two organelles.

The so-called organelles, as the name suggests, are miniature "organs" inside cells with certain structures and functions. They often have distinct functions, just like organs in the human body, with a clear division of labor! Without organelles, the life activities of cells will be difficult to proceed in an orderly manner.

There are various organelles in the biological world, some of which are common to all cells, and some are only available to specific types of cells. For example, the "molecular machine" that synthesizes proteins is possessed by all cells; and the chloroplasts that perform photosynthesis are only available to plant cells. In addition, vacuoles only exist in plant cells and lower cells; centrosomes only exist in lower cell nucleus animal cells.

In short, in order to adapt to their own survival requirements, various cells "evolve" a structure with their own functions. This is the wonder of nature! Under the situation of large bases, countless originally and small-probability events have the possibility of happening, so from the perspective of evolution, it is not strange that a cell that just adapts to the surrounding environment will appear.

Among them, organelles are the most mature manifestation! When it comes to organelles, Su Yuan thought of the origin of organelles. She knew that there was a unique view in the biological world, that is, the "theory of endosymbiosis".

The theory believes that in the early biological world, organelles were actually independent cells. At that time, the cells were relatively low-level and had a relatively single function. They often did not have the complex physiological activities of modern cells. The greatest value was to maintain their own existence to the minimum level and continue to reproduce.

Until billions of years ago, a large cell with phagocytic ability appeared. It swallowed several types of prokaryotic cells in succession, but the phagocytic prokaryotic cells were not digested and decomposed, but instead parasitized in large cells, and slowly transitioned from the initial parasitism to symbiosis, eventually becoming an important organelle for large cells.

The more distinctive ones are mitochondria and chloroplasts. They have almost the same structure as large cells and contain their own genetic materials, DNA and RNA, which can complete replication and passage on their own. Their existence cannot help but remind people of the theory of intracellular symbiosis. If the theory is correct, then the survival of organelles in large cells is a very harmonious process.

Mitochondria are called power plants for cells and are machines that provide energy for cells. During aerobic respiration, cells first ferment and decompose the absorbed glucose into pyruvate, and then enter the mitochondria to complete the tricarboxylic acid cycle and electron transfer, thereby releasing a large amount of energy.

In this process, the mitochondria obtains energy substances from large cells and survive comfortably and worry-freely inside the large cells. The large cells obtain the energy released by the mitochondria after decomposing the energy substances, and do not have to worry about energy. They coordinate, coexist, and have their own needs. In the long process of evolution, they gradually find a harmonious and unified survival rhythm!

This is the magical place in nature!

Then Su Yuan had to have a doubt: Are the two organelles found in ancient people's research also similar? They also have relatively stable independent structures and their own genetic material. So do they come from the outside world? And most importantly, what functions do these two organelles have?

...

...

Sunday, December 9th.

A light snow swept across the land of East China. The next morning, the morning light had just risen. The unmelted snow spread sparsely on the surface, slowly melting into crystal clear liquid in the sunlight, gathering into a stream, slowly passing through the withered and yellow branches and leaves, making the sound of flowing in the middle of winter.

At a mountain village at the foot of Fenghuang Mountain, a girl wearing a white down jacket pushed open the door and walked out, holding a small ceramic bowl in her hand, which contained two-thirds of the porridge, and some eggs and pickled vegetables on it. In winter, a white mist rose, steaming, simple and simple.

The girl walked to a pile of treated bamboo in the yard, ate the bowl of porridge in a few bites, turned to another girl and said, "Sister Xia, we should move faster, otherwise we will miss the time when the time machine arrives!"

Xia Linfei calmly took off her breakfast, and took the dishes from Su Yuan's hand to wash them off. Lei Ran said: "Don't worry, I just asked Grandpa Liu. There is a road from the north mountain that leads to the winding mountain road we were going to when we were camping. If we drive along the winding mountain road and walk for a while in the end, it will save a lot of time than climbing directly."

"Okay, even so, we have to hurry up!" Su Yuan looked at the time helplessly, "It's six:30 in the morning. I remember the last time I traveled through time was around nine o'clock, maybe it would be earlier. It will take at least two hours for us to reach the top of the mountain, right?"

"Okay, then let's go. You go to pick up the car first, I'll say goodbye to Grandpa Liu and the others." After cleaning the dishes, Xia Linfei wiped his hands and said with a faint smile.

A few minutes later, the car drove out from Xiaoqiao Village at the foot of Fenghuang Mountain, passed rows of houses in the village, and gradually sank into a lush mountain road on both sides. Soon, it turned to a cement-winding mountain road. The mountain road was relatively steep and winding and undulating among the foothills. Su Yuan drove for nearly an hour and a half before he arrived at his destination.

Parked the car on the side of the road, Su Yuan and Xia Linyou walked into the mountains on one side. There was a forest that could not be seen at the end. The grass and trees were intertwined and the mountains were covered with mountains. Although it was winter, it was also covered by evergreen trees throughout the year.

"Here, it's here!"

According to the memory in my mind, Su Yuan took Xia Linwo to stop among the two mountains. This is where she landed with the first time using the time machine, which was several mountains away from the second landing.

"Is this here?" Charlene Fei nodded slightly. The place was quiet and peaceful, with blue sky and white clouds as if it had been washed by the blue sky. Among the gray-brown trunks, several squirrels were curiously paying attention to the two people below. As Charlene Fei looked over, the squirrels quickly jumped among the treetops and hid.

Su Yuan nodded and came to a big tree with branches broken by heavy snow. He reached out and gently touched the rough and cold bark, "There is no mistake, I have an impression of this tree!"

"Since we have confirmed that it is here, let's wait."

After saying this, Charlene found a place to sit down, took out his cell phone and passed the time by playing games.

Seeing this, Su Yuan raised his mouth slightly, and a hint of cunning flashed through his casual expression. He sat down next to her and took out his cell phone, but he looked at the most popular online novel.

Almost three months have passed since she came to this world, and the analysis of the experimental record book left by the ancient man has been half gone. In these three months, Su Yuan forced himself to add a lot of knowledge about biotechnology, and now he can keep up with the ancient man's experimental ideas!

Of course, except for the ancient man's idea to develop his understanding of the two organelles, Xia Linfei was not idle either. A few days ago, the world's first world line olfactory device was completed in her hands. Su Yuanzi first learned the world line value of the current world line - a=1.00106!

Yes, it does not belong to the a=0.8 set, nor does it belong to the a=1.2 set, but a brand new a=1.0.

Since the materials used to make the olfactory instruments are all provided by Su Caiwei, the selected components are of the best quality and most expensive on the market, so the possibility of data errors can be eliminated to the maximum extent! Moreover, in order to increase credibility, Charlene did not make a single decision. On the contrary, she made three world line olfactory instruments at one time with great wealth. And it turns out that the data displayed by these three world line olfactory instruments are basically the same.

In other words, the current world line value a=1.00106 is accurate.

The happiest thing after getting this value is Su Yuan himself, because this value means a completely different world direction from the previous experiences and a bright future! Su Yuan, who was originally struggling with whether to "sacrifice himself to protect everyone" in the end, completely broke free from his gloomy emotions.

After a good mood, time also reached December 9, which is of critical significance. Today in the previous world, she took a time machine to that world at this point in time.

So what Su Yuan and Xia Linfei need to prove is that on the same December 9th, will another Su Yuan travel to the world where they are currently in? If we speculate based on the structure of the "World Line Story Tree", there should not be such a "time traveler Su Yuan" in this world.

Because Suyuan's previous crossing was still carried out within the branch line of a=0.8, and now, due to Suyuan's next crossing, the entire branch line of a=0.8 was wiped out at the moment when it crossed to this world on September 3, resulting in a new world line of a=1.0 that should not inherit the "history" that has not yet occurred after the crossing point.

It is based on the structure of the world line: in the inheritance process of the world line, if the time point that occurs later travels to is the time after the previous travels, then the time point that occurs before will be retained truthfully, that is, the new world that travels to retain everything that happened before, including the last travels to itself! And if the time point that occurs later travels to an earlier time node, then the time point that occurs before will disappear with the erasure of the world line.
Chapter completed!