Zhao Yue'er's face flushed, "The function of competitive inhibitors is to make enzymes mistakenly think that they are substrates, so as to preemptively combine with enzymes and inactivate enzymes." Pen & Fun & Pavilion www.biquge.info"

"If it's a competitive stepmother, then the measures she takes should be: dress up as Cinderella herself, and then go to the prince's bed, so that the prince can't go to Cinderella if he has a stepmother."

After saying this, Zhao Yue'er looked at Yang Tian with shining eyes, and before Yang Tian could say anything, there was a sudden sound of "poof!" ”

One of the two freshman men who forced Zhao Yue'er just now was opening his mouth wide, and the mist in the sky spewed out from his mouth that he passed slightly to the right, and then attacked the other freshman man with his head and face!

"it!"

The attacked buddy screamed, flipped backwards in an instant, and then there was a tooth-aching sound of chairs moving.

Yang Tianyan quickly pulled a hand, and Zhao Yue'er narrowly avoided the overturned chair with a gap of 5 centimeters.

The senior boy sitting next to Zhao Yue'er was not so lucky, and he was directly hit by the buddy who escaped the attack, and the sound was obviously painful.

There was a small piece of wet on the table, and the buddy with the kettle in his hand looked back at Zhao Yue'er and Yang Tian in a daze, and the other hand compared to six-six-six.

"It's amazing, my brother, my sister!"

"You're big! If you don't drink water in the morning and don't drink water in the evening, you are amazing! ”

The buddy who was sprayed with half of his face turned around and gave him a fried chestnut with sugar, and then also turned his head to look at Yang Tian and Zhao Yue'er, "Kneel down for you, I, I will give you 82 points for this lesson, and the remaining 18 points will be compared to you in the form of six-six-six!" ”

Zhao Yue'er's face was already ashamed of something, Yang Tian was quite calm, after all, he was also a person who had been in the limelight in front of nearly 100 people, where did this go!

Smiling, Yang Tian looked at Zhao Yue'er and began to play a round, "Actually, you don't have to be so dirty." ”

Zhao Yue'er's face turned red again when she heard this, and then she heard Yang Tian say:

"The stepmother is quite old, so she doesn't have to fight so hard, we can let her send her own daughter to the prince's bed, right?"

Everyone was silent for a while, and then complained in their hearts, isn't this the same filthy and filthy!

"Why do you all have such expressions?" Yang Tian looked serious, "We are discussing science, where did you all think of it!" Really, we must study hard and be the successor of socialism! ”

Everyone then fell silent, the expressions on their faces twitched, Zhao Yue'er looked at Yang Tian's serious nonsense on the side, and the corners of her mouth couldn't help but hook up a smile.

"Okay, let's go back to the question just now."

Yang Tian cleared his throat, "How will our Km value and Vmax value change after the competitive stepmother abducts the prince?" ”

"I know that." Zhao Yue'er took the initiative to ask Ying, and while admonishing herself that this was discussing science, she spoke:

"When the stepmother and Cinderella can marry the prince, the prince is not a non-Cinderella choice, so the intimacy between the prince and Cinderella will decrease, that is to say, the affinity between the enzyme and the substrate will be reduced, we know that the smaller the Km value, the higher the affinity, so at this time the Km will become larger."

"yes, what about Vmax?"

Yang Tian was kind and seductive, and the surrounding students involuntarily got closer, the kettle of the man who sprayed water just now had been confiscated by everyone, and everyone still wanted to listen to Yang Tian popularize science in this way without threat, it was so joyful!

"I know that, too!" Zhao Yue'er continued to answer, "Because there are still so many princes, but if they don't choose their stepmothers and choose Cinderella one after another, the speed at which Cinderella becomes a princess is still the same, so Vmax will not change." ”

Everyone nodded their heads, that's the truth.

"Very good, then let's talk about another kind of stepmother, non-competitive stepmother, do you know the mechanism of action of this stepmother?"

Yang Tian smiled and threw out the next question, Zhao Yue'er opened her mouth, then shook her head dejectedly and retracted it.

Before she told Yang Tian that she could probably guess the principle of the change of the two parameters caused by the non-competitive inhibitor, in fact, she was still dizzy, and she didn't know the truth very well, let alone ask her to use a simple example to explain it.

Yang Tian glanced back, "Do you want to try to answer?" ”

Everyone hesitated for a moment and shook their heads.

The two freshman men didn't learn this lesson at all, because Zhao Yue'er was actually just previewing.

The seniors thought about it carefully, the course of biochemistry at that time really made their eggs hurt, all kinds of formulas and various steps, and they had to memorize a lot, and now their subjects make them feel egg pain, so although they vaguely remember that there are so many inhibitors, but the principle of action has been forgotten.

The guy who broadcast live in the QQ group also threw the whole process before along with this problem, and the QQ group exploded in an instant, "666", "999" flew all over the screen, but no one would be stunned.

The two senior sisters were a little eager to try, after all, girls are still more serious about studying than boys, and they remember it more or less, but when they thought of Zhao Yue'er's embarrassment just now, they shrank back.

So in the end, it was Yang Tian himself who smiled on top.

"Non-competitive inhibitors can bind to places other than the center of enzyme activity without affecting the binding of enzymes to substrates, and at the same time, the substrates do not affect the binding of enzymes to inhibitors, and there is no competition between substrates and inhibitors, but inhibitor-enzyme-substrate complexes cannot release products."

"Probably means that the non-competitive stepmother will not snatch the prince with Cinderella, she will only lead the prince's clothes and follow behind him, which does not affect the prince and Cinderella's love, and at the same time, when the prince and Cinderella fall in love, Cinderella can't stop the stepmother from quietly dragging the prince's clothes from behind."

"So strictly speaking, neither of the stepmother and Cinderella affects anyone, so there is no competition."

"So the question is, how does this stepmother inhibit the enzymatic reaction?"

Everyone's eyes were focused on Yang Tian, and the buddies who were live in the group didn't care about their non-stop mobile phones, staring directly at Yang Tian.

Yang Tian cleared his throat and continued.

"Although the stepmother can't stop the prince from getting on the line with Cinderella, because she has been dragging the corner of the prince's clothes, even if the prince and Cinderella have a wedding, they can't be in the cave room next to the stepmother's watch, so Cinderella can't become a princess, and the enzymatic reaction can't go smoothly."

Everyone opened their mouths and their eyes widened, they never expected that Yang Tian would be able to give such an explanation!

Then they began to applaud spontaneously, although the explanation given by Yang Tian was impossible to look at, but it was undeniable that what he said was indeed right!

The non-competitive inhibitor binding to the enzyme does not affect the substrate binding to the enzyme, so the stepmother tugging at the corner of the prince's clothes will not prevent them from having a wedding.

But when there are non-competitive inhibitors, there is really no way for the substrate to be converted into products by enzymes, and if this is put on the prince and Cinderella, isn't it that they can't snap in front of their stepmothers!

After all, Cinderella and the prince also want face, this is going to be a real cave room, isn't it just to stage a living spring palace in front of the stepmother!

The explanation is simple!

Who else is there besides Yang Tian!