Blood

• What is the appearance of plasma?

  Pale yellow liquid
• What does plasma transport in the body?

  Red blood cells, white blood cells, and platelets
• What type of food products does plasma carry?

  Digested food products like glucose
• Which waste products are transported by plasma?

  Carbon dioxide and urea
• What role do hormones play in the blood?

  They act like chemical messengers
• What is the function of antibodies in the blood?

  Part of the body’s immune response
• What is the primary function of red blood cells?

  Carrying oxygen from the lungs
• How is the structure of red blood cells adapted to their function?

  They have a biconcave disc shape
• Why do red blood cells have a large surface area?

  To absorb more oxygen
• What substance allows red blood cells to carry oxygen?

  Haemoglobin
• Why do red blood cells lack a nucleus?

  To leave more space for oxygen
• What is a characteristic of red blood cells that aids in passing through capillaries?

  They are small and very flexible
• What are the components of blood that plasma carries?

  • Red blood cells
  • White blood cells
  • Platelets
  • Water
  • Digested food products
  • Waste products
  • Hormones
  • Antibodies
• What is the role of platelets in blood?

  They help in blood clotting
• What is the significance of red blood cells in the brain?

  They carry oxygen needed for learning
• How many red blood cells are in a drop of blood?

  Millions
• What is the importance of oxygen transport in the body?

  It is essential for cellular respiration
• What happens to red blood cells when they pass through capillaries?

  They can easily pass due to flexibility
• How does the structure of red blood cells enhance their function?

  Their shape and flexibility optimize oxygen transport