Chapter 348 Don't mind asking a few more questions to appreciate it!
"As for the pine tree, its leaves are as thin as needles, with fewer stomata, and the stomata are deep under the epidermis. The surface of the leaves is also protected by a layer of wax, so the transpiration is very weak, which can reduce water and heat loss and adapt to winter.
Cold environment.”
Song Zhizhi explained everything clearly in two breaths. The second teacher also smiled and nodded, and the third teacher started asking questions.
"If a person eats more and more food, but gradually loses weight, drinks more water, and urinates more, then we can infer what is lacking in her body?"
This question is different from ordinary question and answer questions, all of which have answers in the book. It is a little more flexible and can be applied in real life.
What is tested is the students' flexible application ability.
Song Zhizhi is even faster. As a Chinese woman who has always been strong in her life, she has persisted in her weight loss career for more than ten years. She has never tried any of carnitine, black coffee, enzyme plum, beautiful ballet or keepkeep...
Until the final healthy diet + exercise to lose weight, you can adjust your weight at any time, and you have gone through countless pitfalls in the process. Naturally, you know this.
"Lack of insulin!"
Song Zhizhi was very sure and continued to explain.
"When the human body does not secrete enough insulin, the synthesis of glycogen and the decomposition of blood sugar by blood sugar will be weakened. As a result, the blood sugar concentration will rise above the normal value. Part of the blood sugar will be excreted in the urine, forming glycosuria. Glycosuria is a characteristic of diabetes.
One; Diabetes is characterized by hyperglycemia. Typical cases may show symptoms such as polyuria, polydipsia, polyphagia, and weight loss, which are the symptoms of "three more and one less"."
The third teacher smiled and drew a tick, almost applauding.
It is really rare to know the answer and the principle, and to be able to speak without mistakes in such a tense situation.
Song Zhizhi performed very well on several consecutive questions, and Song Zhizhi gradually felt relieved. The tenth question came to the hands of the second teacher again.
"The last question is not as difficult as the previous one. Please listen, Mr. Song Zhizhi, from what are the peanut shells, the two petals of the peanut and the seeds?"
"The peanut shell is a pericarp that develops from the ovary wall, the seed develops from the ovule, and the peanut kernel belongs to the embryo, which develops from the fertilized egg."
Song Zhizhi spoke again without any flaws, and with the teacher's look in her eyes, she continued to explain the detailed process of peanut development. This was also what she had learned when she first learned the basics of biology - understanding various plants in nature.
"After pollination and fertilization of a flower are completed, the calyx, corolla, stigma and style gradually wither, and only the ovary of the pistil continues to develop. During the development of the fruit, the ovary is divided into ovary walls and ovules, among which the ovary
The wall develops into a pericarp."
“The integument inside the ovule develops into the seed coat, the fertilized egg develops into the embryo, and the fertilized polar nucleus develops into the endosperm, seed coat, embryo, and the endosperm and pericarp combine into one to become the fruit.”
After finishing speaking, the four teachers put down their pens and started applauding. Through the crack in the door, the students watching outside opened their mouths wide and could not close them for a long time.
Those who have passed the exam feel convinced if they fail, while those who have not passed the exam are even more nervous.
With such outstanding performance in the past, how could they get their turn?
"Classmate Song Zhizhi, you are indeed outstanding beyond your years. All the teachers here admire you very much, so I would like to ask why you have an understanding of biology that is beyond the scope of your study."
"Because my dream is to study biology all my life. In the future, I will be a scientist. Even if I can't do it, I will still study this. I like this, and I usually read books outside of class."
Song Zhizhi replied that everyone was even more satisfied. It was good to have such a hobby at such a young age and persist in it.
The first teacher smiled and clapped his hands a few more times, clearly admiring Song Zhizhi. When other teachers asked Song Zhizhi to leave the examination room, the first teacher turned around.
"Song Zhizhi, please wait a moment. I want to ask you how you are doing with your extracurricular books. Can I ask you a few more questions?"
She is really curious.
The second teacher interrupted, "Well, we are taking exams now. Will this waste the time of other candidates?"
"I know, but if you think about it, what is the purpose of our competition? It is to select the talents we need. Since we have met promising ones, why not test them out? As long as we grasp one, this competition will not be a loss, right?
"
The second teacher finished speaking in a low voice. Everyone thought it made sense and stopped talking.
Song Zhizhi walked back, nodded, and waited for her question.
"Which of the following does not belong to a living system, A. A frog, B. The epidermal cells of the frog, C. The protein molecules in the epidermal cells, D. The water in the pond, sunlight and other environmental factors, as well as various living things in the pond
Creature. Please choose!"
This is a biology question for the first year of high school!
Song Zhizhi raised his eyes, and other teachers also looked over, looking expectantly.
"The levels of living systems are cells, tissues, organs, systems, individuals, populations, communities, ecosystems and biosphere. The smallest level is cells. Various substances in cells do not belong to living systems, so I choose c."
This is just the basic knowledge of the concept, and I have seen it.
The first teacher's eyes brightened, "Okay," and then he began to gradually increase the difficulty. He asked several questions about the knowledge points of the first year of high school, and found that Song Zhizhi answered them fluently.
So I went straight to the senior year of high school.
"The cells in the root apical meristematic zone do not osmotically interact with environmental solutions, right?"
"No, because the cells in the root tip meristematic zone are immature cells, their water absorption is [mainly] through imbibition. It does not mean that there is no osmosis, it is just that the main function is through imbibition."
Song Zhizhi shook his head, as if he already knew the answer. With this answer, the teachers' eyes changed completely, and they all drew a five-pointed star symbol on Song Zhizhi's name.
Everyone outside the door was completely confused. The people in the front could barely understand, and the people in the back had no idea what they were talking about. But Song Zhizhi seemed to be just talking about what to have for dinner today.
Many students were disheartened and sat down with ugly faces.
Some students cried anxiously, tears kept falling, and the teachers outside who called their names had to comfort them one by one. The psychological quality of these children is still too weak. Students like Song Zhizhi are not everywhere, so they rank their own strength.
The impact is not big, so what are you afraid of?
"Okay, student Song Zhizhi, you can go out now!" The first teacher didn't know what he was writing and lowered his head. Then the second teacher opened his mouth and continued the process.
Song Zhizhi nodded and walked out directly. The next student's face looked uglier than crying.
But he could only bite the bullet. With the panic caused by Song Zhizhi as a lesson learned from the past, the teacher outside directly closed the door so that the students outside could not see what was inside. Out of sight, out of mind, there is no fear.
As soon as Song Zhizhi went out, she was surrounded by several classmates from the same school.