Which of the following statements about erythrocytes is true?
A)The main function of erythrocytes is to carry nutrients.
B)Erythrocytes are shaped like biconcave disks.
C)Each erythrocyte contains about 1 million molecules of hemoglobin.
D)Erythrocytes in adult humans have nuclei.

Question

Quizplus · Accepted Answer

Erythrocytes are shaped like biconcave disks. This shape allows for a larger surface area in relation to their volume, which allows for more efficient gas exchange between the erythrocytes and their surroundings.

Answer: C
 Each erythrocyte contains about 1 million molecules of hemoglobin. Hemoglobin is the protein responsible for binding to and carrying oxygen and carbon dioxide in the blood.

Therefore, the correct answer is B and C.

Which of the Following Statements About Erythrocytes Is True