1.2.3 Components of blood and their functions

• Red blood cells carry oxygen using hemoglobin
• Plasma is responsible for transporting dissolved substances
• What is the primary role of blood in the cardiorespiratory system?

  Oxygen and carbon dioxide exchange
• Water boils at 100 degrees Celsius at standard atmospheric pressure.


  True
• What does blood transport from the lungs to the body's tissues?

  Oxygen
• Red blood cells carry oxygen using the protein hemoglobin
• Red blood cells have a biconcave disc shape
• Red blood cells carry oxygen using the protein hemoglobin
• Steps in the blood clotting process initiated by platelets

  1️⃣ Adhere to the injury site

  2️⃣ Release chemicals to attract more platelets

  3️⃣ Form a plug to stop bleeding
• Blood carries carbon dioxide from the lungs to the tissues

  False
• Red blood cells use hemoglobin to carry oxygen.


  True
• What dissolved substances are transported by plasma?

  Nutrients, hormones, proteins
• Match the type of white blood cell with its function:

  Neutrophils ↔️ Engulf bacteria

  Lymphocytes ↔️ Destroy pathogens

  Monocytes ↔️ Ingest foreign matter

  Eosinophils ↔️ Respond to parasites
• Platelets maintain vascular integrity by assisting in blood clotting.


  True
• Blood comprises red blood cells for oxygen transport and platelets for blood clotting
• What is the role of blood in the cardiorespiratory system?

  Delivers oxygen, removes carbon dioxide
• What do platelets assist in?

  Blood clotting
• Match the blood component with its function:

  Red blood cells ↔️ Carry oxygen

  White blood cells ↔️ Defend against infection

  Platelets ↔️ Assist in blood clotting

  Plasma ↔️ Transports dissolved substances
• Steps of the scientific method:

  1️⃣ Make an observation

  2️⃣ Form a hypothesis

  3️⃣ Test the hypothesis with an experiment

  4️⃣ Analyze the data

  5️⃣ Draw a conclusion
• Plasma transports dissolved substances such as hormones, nutrients, and waste products
• Which blood component transports dissolved substances?

  Plasma
• What is the primary function of plasma in blood?

  Transport dissolved substances
• Plasma transports oxygen in the body

  False
• Match the type of white blood cell with its primary function:

  Lymphocytes ↔️ Recognize pathogens

  Neutrophils ↔️ Engulf bacteria

  Monocytes ↔️ Develop into macrophages

  Eosinophils ↔️ Fight parasitic infections

  Basophils ↔️ Release inflammatory chemicals
• In the cardiorespiratory system, blood delivers oxygen from the lungs to tissues
• In the cardiorespiratory system, blood carries oxygen from the lungs to the tissues
• Plasma makes up about 55% of the total blood volume
• What protein in red blood cells binds to oxygen?

  Hemoglobin
• Steps in the process of blood clotting by platelets

  1️⃣ Adhere to injury site

  2️⃣ Release chemicals

  3️⃣ Form a plug
• What happens to platelets when blood vessels are damaged?

  Form a plug
• White blood cells defend against infection.


  True
• Blood delivers oxygen from the lungs to tissues in the cardiorespiratory system.


  True
• Red blood cells carry oxygen using the protein hemoglobin
• What percentage of blood volume does plasma make up?

  55%
• Red blood cells use hemoglobin to carry oxygen.


  True
• Red blood cells transport oxygen using hemoglobin.


  True
• Plasma makes up about 55% of the total volume of blood
• Red blood cells have a nucleus

  False
• Platelets are disc-shaped cell fragments that lack a nucleus
• What is the primary role of blood in the cardiorespiratory system?

  Delivering oxygen