Understanding Blood: Colors, Components, and Functions

The video explores the diverse colors of blood across species, explaining that blood is not always red. It delves into the components of blood, including plasma, red blood cells, white blood cells, and platelets, and their respective roles. Plasma, primarily water and proteins, transports nutrients and heat. Red blood cells, containing hemoglobin, carry oxygen and give blood its red color. White blood cells defend against pathogens, while platelets aid in clotting. The video highlights the unique proteins in different species that result in varied blood colors.

Which of the following animals has blue blood?

• Papua New Guinea green blood shank

• Humans

• Oscillated ice fish

• Octopus

What percentage of blood is made up of plasma?

• 45%

• 55%

• 70%

• 92%

What is the primary function of plasma in the blood?

• Clotting blood

• Carrying oxygen

• Transporting nutrients and heat

• Fighting pathogens

What protein in red blood cells is responsible for carrying oxygen?

• Antibodies

• Hocanin

• Hemoglobin

• Phagocytes

Why is the blood of oscillated ice fish clear?

• It contains a special green pigment

• It contains hocanin

• It contains hemoglobin

• It lacks both hemoglobin and hocanin

What percentage of blood is made up of red blood cells?

• 55%

• 1%

• 8%

• 45%

What is the main role of white blood cells?

• Clotting blood

• Protecting against pathogens

• Carrying nutrients

• Transporting oxygen

Which type of white blood cell produces antibodies?

• Platelets

• Erythrocytes

• Lymphocytes

• Phagocytes

What is the function of platelets in the blood?

• Transporting nutrients

• Clotting blood

• Carrying oxygen

• Fighting pathogens

What determines the color of blood in different species?

• The presence of platelets

• The amount of plasma

• The type of protein in red blood cells

• The number of white blood cells