"That's right!" Li Fuzhao quickly responded, raising his eyebrows, "Self-cultivation Qi family rules the country and the world, we have already had this truth!"

Li Yiming smiled: "Uncle Zhao is right. ”

Li Fuzhao smiled modestly: "Don't dare, these are the words in "The Book of Rites, University", I just ......"

"I mean the second half. Li Yiming said lightly.

Li Fuzhao was stunned: "Later... Half a sentence... We've had this for a long time?!"

Li Yiming snorted and glanced at the two of them: "Why did I ask people to sort out our ancient works?"

"It's because there's a big truth hidden in it!" Li Fuzhao replied.

Li Yiming nodded: "Yes, these are all thought out from generation to generation, there will always be important things, and it is very valuable to take them out and keep pace with the times." If you can't use it well, then the problem is not that of the ancients, right?

Li Fuzhao nodded with a straight face: "Of course, just now you said that knotted rope note, if we had already understood, we would not have waited for others to win the Nobel Prize,.. Ah Zhang, what a pity do you think?"

Li Guozhang looked helpless: "I was only six years old when Watson proposed this idea. ”

Li Fuzhao snorted: "I was able to speculate in stocks at the age of six! Didn't you know that there was a knotted rope at that time?"

Li Guozhang was speechless for a moment.

Huo Yingdong couldn't help but smile and said: "Ah Zhao, why don't you say that you yourself are ...... because of stock speculation?"

Li Yiming smiled: "Okay, let's go ahead, I was born a little late... We'll do it ourselves later,...... There are so many things in this world that no one else understands. ”

Li Fuzhao nodded: "That's right!"

Li Guozhang came back to his senses and hurriedly asked, "If people are cells, what are the macromolecules?"

"Macromolecules are these things in the human body, the five senses, limbs, brain organs, you think so," Li Yiming glanced at him, "Biological macromolecules such as proteins and nucleic acids are the main embodiment of life, but not life itself. It's as if these things in you are the embodiment of you, but not the truth of you. ”

"I have to memorize it!" Li Guozhang hurriedly took the pen.

Li Fuzhao frowned and scolded lightly: "You should have remembered it a long time ago!"

"The role of the three messengers is ...... A little explanation ...... on a daily basis"

Li Yiming didn't care, looked at Li Guozhang with a pen and paper ready, and said lightly: "It's like if you arrange people to do things, you have to have a messenger to call the door first, this is the first messenger." Then the doorman opens the door for you, and you give him the letter, and he is the second messenger, and the process is transmembrane, and the doorman gives it to the assistant inside, which is the third messenger...... This will allow you to find people to do things. ”

Li Guozhang paused and looked up: "Why don't you ...... directly?"

Li Yiming was a little amused: "Don't you want to think about the actual proportion? Compared with macromolecules, how big are the cells?"

Li Yiming looked out the window, "It's like a person in a certain room in this Taikoo Forest, you can just take something and find someone to deliver it?"

"Oh yes!"

"Because the place is so big and heavily guarded, if it weren't for this management, it would have been impossible for a living organism to have genetic stability. ”

Li Guozhang nodded suddenly, yes, DNA is indeed pitifully small in cells, but it is so important.

Li Fuzhao frowned and looked at Li Yiming, and asked with a smile: "Do you have to run away, there is no phone?"

Li Yiming glanced at him: "Telephone, if the messenger wants to have a phone, it is Superman, I am talking about ordinary human beings." ”

Li Fuzhao nodded silently, Okay, you must be the kind of person who has a phone.

"This is popular science...... Explain the conclusions that have already been made......" Li Guozhang muttered in a low voice and looked at Li Yiming.

"They're all looking for a very important messenger factor, actually...... It's easy!"

Li Guozhang's eyes lit up: "It's very simple? What is it?"

"It has been discovered that there should be an endothelial expansion factor in the body. But no one knows what it is, they are all looking for ....." Li Yiming gestured out the window, "You know that the origin of life is from simple to complex, right?"

Li Guozhang nodded.

"What are the main components of the Earth's atmosphere?"

"Nitrogen and oxygen!"

"Hydrogen, oxygen and nitrogen are important elements of life, hydrogen and oxygen constitute water, so a large part of the human body is water, so where do you say nitrogen is?"

Li Guozhang hesitated: "Protein is everywhere, right?"

"That's right, the first messenger factor is used to transmit life signals, it needs to be flexible and simple in structure, and it can travel through various environments, here is water and there are various protein macromolecules, do you guess what composition it should be to complete such a major mission?" Li Yiming asked with a smile.

Li Guozhang's mouth was half open, only to feel that his brain was boiling like a boiling pot, and the elements and atoms were combining.

"Nitric oxide!"

Li Yiming said lightly, glancing at the two old men who couldn't understand it even if they listened carefully, "This is the most likely structure of the First Messenger, and it is also the endothelial expansion factor they have been looking for." ”

Li Guozhang was shocked, it turned out to be it?!

"Nitric oxide I know," Li Fuzhao said, suddenly wondering, "Isn't that a toxic gas?"

Li Guozhang also couldn't believe it: "Yes, how can it be in the body if it is poisonous?" "You must know that whether poison is poisonous or not depends on the dose, the chemical properties of body fluids and air are also different, and the effects are also different. ”

Li Yiming looked at Li Guozhang, "I know you don't believe it, in fact, there must be countless controversies when this kind of conjecture is published!"

"It doesn't matter if it's controversial, it's a scientific discussion!" Li Fuzhao smiled and looked at Li Yiming, "This messenger is very important?"

"Of course, in fact, it can improve the health of the body's circulation, and you all know that nitroglycerin can cure heart disease, right?

"Isn't it?"

"Of course not, it's just a small nitric oxide molecule that is degraded and separated, which sends a signal to dilate blood vessels. So they call it endothelial expansion factor, but it's actually nitric oxide. ”

Li Yiming looked at Li Guozhang, who was full of shock, "Sometimes things are complicated, but after seeing through them, it's so simple." ”

It seems to make some sense, but ...... Li Guozhang took a deep breath, pinched his chin and groaned: "I don't know how to carry out research, I ......"

"No, we put forward conjectures, some people go to research, we just make medicine. Li Yiming looked out the window, "Anyway, I still have to sell medicine in the end, and I can't directly take drug gas." ”

"Haha......" Li Fuzhao and Huo Yingdong laughed at the same time.

Li Yiming looked at the three of them, and his voice was slightly lower: "Actually, there are already a lot of such medicines, and even some of them are still familiar to you!"

Laughter.