Big brother and big sister come in to help the little brother! Thank you...

Oh, my God. It's definitely a venereal disease, bleeding and pus, it's gonorrhea, it's a kind of venereal disease. Hurry up and go to the hospital.

This one! I suggest you go to the hospital to have a look! This AIDS can't be too likely, right? But I think your illness is real! But it's not a joke to go to the hospital to see what the specific disease is!! Go for it!

It was very serious, and I rushed to a regular hospital for treatment.

You'd better go to the hospital and don't drag on the consequences of the very serious drops.

Let's go to the hospital and have a look.

Hurry to the hospital... Fast.. Hurry up...

Categories: Education Academic Exams >> Study Help.

Problem description: After oxygen enters the bloodstream, most of it enters the red blood cells, and when it is combined with carbon dioxide into the bloodstream, most of it is transported in the form of . Please, my brother is a science student, and he said that this was in the high school book, and he didn't know that it was in the third year of junior high school, and he said he forgot. So now I want to ask all the big brothers and sisters, can you please tell me?

This is my summer vacation homework, and I will be in the next third year of junior high school.

Analysis: Transport of gases in the bloodstream.

O2 Transportation.

Only a small amount of O2 in the blood is dissolved in plasma, and most of it binds to hemoglobin and is transported by hemoglobin. The properties of hemoglobin are suitable for transporting O2: the partial pressure of oxygen in the lungs is high, and hemoglobin is easily combined with oxygen to form oxyhemoglobin (HBO2); When blood flows into tissues, the partial pressure of oxygen decreases due to CO2 produced by tissue metabolism, and oxyhemoglobin can be separated from oxygen to form hemoglobin and bright red, while Hb is dark blue.

In addition, HB can also be combined with CO to form HBCO, which is cherry red in color. The affinity of Hb and CO binding is 210 times greater than that of O2, and after Hb and CO bind, it loses the ability to transport O2, which is gas poisoning, and if there are more than 50 HB combined with CO, it will die due to tissue hypoxia.

CO2 transportation.

Only a small fraction of the CO2 absorbed by blood from tissues is dissolved in plasma, and more than 90% enters red blood cells, where it is transported in two chemically bound ways: one is HCO3- and the other is carbamate hemoglobin.

c -2 5 minus two-thirds minus nine-tenths 0

Original price 4800 (1-25%)=6400 yuan.

2000 (1+RMB.)

Press the calculator.

600000x15=90000000=900 km.

Let B travel x kilometers per hour.

2x+260x2=900

You can solve x, and please praise it if you help.