Question

The chief difference between the erythrocytes of man and frog is
A. Humans erythrocytes have more hemoglobin
B. Humans erythrocytes have more nuclei
C. Human erythrocytes have no nuclei
D. Human erythrocytes have less hemoglobin

Answer 1

Hint: The red blood cells of the frog have the control center of the cell to control various functions with respect to its body.

Complete answer:
Erythrocytes are also commonly called red blood cells which are the most occurred blood cell. The erythrocytes in humans are oval biconcave disc-like which lacks nuclei while in the case of frogs the erythrocytes are elliptically shaped with nuclei.

Additional Information: -The erythrocytes are the means of delivering oxygen to the body tissue through blood through the circulatory system.
-It is an iron-containing molecule that binds oxygen and gives the red color to the cells and the blood.
-In humans, the red blood cells lack a cell nucleus and most organelles to get maximum space for hemoglobin.
-The erythrocytes of the frog have the ability to divide.
-Around 2.4 million new erythrocytes are produced per second in human adults.
-Frogs contain a purple-colored DNA-bearing nucleus that is visible in the center of the cell.
-A large amount of the amphibian DNA is easily accessed by the researchers because of the red blood cells having the nucleus present in them.
-Humans have platelets, which are cell fragments that help in blood clotting while frog blood does not have platelets.
So, the correct answer is ‘Human erythrocytes have no nuclei’.

Note: The blood of the frog has both solid and liquid parts. The liquid part is the plasma where lies the solid part like red blood cells and white blood cells. The blood when collected from the frogs gives red blood cells easily by the process of centrifugation.