Exploring Red Blood Cell Anatomy and Function

What is another name for red blood cells?

• Macrophages

• Erythrocytes

• Platelets

• Leukocytes

What shape do red blood cells have?

• Biconcave disk

• Circular

• Oval

• Cuboidal

What structural feature of red blood cells enhances their ability to transport gases?

• Biconcave shape

• Rigid membrane

• Large size

• Multiple nuclei

Which protein contributes to the flexibility of the red blood cell membrane?

• Collagen

• Elastin

• Spectrin

• Keratin

Which organelle is absent in red blood cells?

• All of the above

• Ribosome

• Golgi apparatus

• Nucleus

What is the role of the protein spectrin in red blood cells?

• Enzyme activation

• Membrane flexibility

• Oxygen binding

• Energy production

What is the primary function of red blood cells?

• Nutrient transport

• Protein synthesis

• DNA replication

• Gas exchange

How many oxygen molecules can one hemoglobin molecule carry?

• Four

• Two

• Eight

• One

What happens to hemoglobin when it reaches tissues needing oxygen?

• It gains oxygen

• It multiplies

• It releases oxygen

• It becomes inactive

What percentage of carbon dioxide is transported as bicarbonate in the blood?

• 7%

• 23%

• 70%

• 50%