Structure and Function of Erythrocytes (RBCs)

This video tutorial provides an in-depth look at red blood cells (RBCs), also known as erythrocytes. It covers their abundance in the blood, their primary functions in transporting oxygen and carbon dioxide, and their unique biconcave disc shape. The video explains the absence of organelles and nucleus in RBCs, highlighting their reliance on glycolysis for energy. It delves into the structure and function of hemoglobin, the protein responsible for oxygen binding, and discusses erythropoiesis, the process of RBC production, emphasizing the importance of iron and B vitamins.

What is the common name for erythrocytes?

• Plasma

• Platelets

• Red blood cells

• White blood cells

Which of the following is a primary function of red blood cells?

• Transporting oxygen

• Transporting nutrients

• Producing antibodies

• Clotting blood

What shape are red blood cells?

• Cuboidal

• Flat

• Biconcave discs

• Spherical

Why do red blood cells lack mitochondria?

• To enable them to carry more nutrients

• To prevent the use of oxygen they transport

• To increase their lifespan

• To allow them to divide rapidly

What is the main protein found in red blood cells responsible for oxygen transport?

• Fibrinogen

• Albumin

• Hemoglobin

• Myoglobin

How many oxygen molecules can one hemoglobin molecule bind?

• Two

• One

• Four

• Three

What is the role of erythropoietin in the body?

• To break down red blood cells

• To stimulate red blood cell production

• To transport oxygen

• To regulate blood pressure

Which organ produces erythropoietin?

• Kidney

• Lungs

• Liver

• Heart

Which vitamin is essential for erythropoiesis?

• Vitamin C

• Vitamin D

• Vitamin B12

• Vitamin K

What condition can result from a deficiency in B vitamins affecting erythropoiesis?

• Thrombosis

• Hypertension

• Anemia

• Leukemia