Question

Эритроциты чьей крови - человека или лягушки- способны переносить кислорода.Почему:? (((((ПОМОГИТЕ Я НЕЗНАЮ ТУТ ПИШУТ И ЧЕЛОВЕКА И ЛЯГУШКИ Я НЕЗНАЮ КОГО))))))

Answer 1

Суммарная площадь поверхности эритроцитов человека больше суммарной поверхности эритроцитов лягушки(каждый эритроцит лягушки имеет большую поверхность потому что он больше в 3 раза а эритроцитов в крови человека больше в 10 раз.)

Answer 2

человека, т.к в эритроцитах человека нет ядра, что позволяет переносить больше кислорода

Answer 3

Erythrocytes and Oxygen Transport

Erythrocytes, also known as red blood cells, are responsible for transporting oxygen throughout the body. They contain a protein called hemoglobin, which binds to oxygen in the lungs and releases it to the body's tissues. This process is essential for delivering oxygen to cells and organs, ensuring their proper functioning.

Erythrocytes in Humans: In humans, erythrocytes are the primary carriers of oxygen in the bloodstream. They are specialized cells that lack a nucleus and other organelles, allowing them to have more space for hemoglobin. This adaptation increases their oxygen-carrying capacity.

Erythrocytes in Frogs: Similarly, erythrocytes in frogs also play a crucial role in oxygen transport. However, there are some differences between human and frog erythrocytes. For example, frog erythrocytes are nucleated, meaning they contain a nucleus. This difference in structure does not significantly affect their ability to transport oxygen.

Why Can Erythrocytes Carry Oxygen?

The ability of erythrocytes to carry oxygen is due to the presence of hemoglobin. Hemoglobin is a complex protein made up of four subunits, each containing an iron molecule called heme. Oxygen molecules bind to the iron in the heme group, forming a reversible bond.

When erythrocytes pass through the lungs, the oxygen concentration is high, allowing hemoglobin to bind with oxygen. As the erythrocytes travel through the body's tissues, where oxygen concentration is lower, the bond between hemoglobin and oxygen weakens, and oxygen is released to the cells that need it.

This process, known as oxygen loading and unloading, allows erythrocytes to efficiently transport oxygen to different parts of the body. The high surface area-to-volume ratio of erythrocytes, their flexible shape, and their ability to squeeze through narrow capillaries also contribute to their effectiveness in oxygen transport.

Conclusion

In summary, both human and frog erythrocytes are capable of carrying oxygen due to the presence of hemoglobin. While there are some structural differences between human and frog erythrocytes, these differences do not significantly impact their ability to transport oxygen. Erythrocytes play a vital role in ensuring the delivery of oxygen to cells and organs, supporting overall physiological function.