1 How much blood is there in your body?
2 Name four things that make up blood.
3 Name four things that are transported in the blood plasma.
5 Describe how the blood transports oxygen around the body.
4 What do red blood cells do?
6 Give two differences between red and white blood cells.
7 What are antibodies?
8 What is the difference between an antibody and an antitoxin?
9 Describe how platelets form a blood clot.
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Answers
1.The average adult weighing 150 to 180 pounds should have about 1.2 to 1.5 gallons of blood in their body. This is about 4,500 to 5,700 mL. Pregnant women.
2. four main components: plasma, red blood cells, white blood cells, and platelets.
3. Along with water, salt, and enzymes, plasma also contains important components. Tshese include antibodies, clotting factors, and the proteins albumin and fibrinogen.
4. Red blood cells are an important element of blood. Their job is to transport oxygen to the body's tissues in exchange for carbon dioxide, which is carried to and eliminated by the lungs.
5. Although oxygen dissolves in blood, only a small amount of oxygen is transported this way. Only 1.5 percent of oxygen in the blood is dissolved directly into the blood itself. Most oxygen, 98.5 percent, is bound to a protein called hemoglobin and carried to the tissues.
6. 1.Red blood cells are called Erythrocytes.
1.White Blood Cells are called Leucocytes or Leukocytes.
2.RBCs have a bi-concave disc shape.
2. WBCs have an irregular shape.
3. The lifespan of RBC is about 120 days.
3. The lifespan of WBC is around 12-20 days after which, they are destroyed in the lymphatic system.
7. An antibody is a protein produced by the body's immune system when it detects harmful substances, called antigens.
8. Antibodies are proteins produced by the immune system in response to any pathogen. ... Antitoxins are a special group or type of antibodies which render a toxic substance harmless. It can neutralize a specific toxin.
9. When an injury causes a blood vessel wall to break, platelets are activated. They change shape from round to spiny, stick to the broken vessel wall and each other, and begin to plug the break. They also interact with other blood proteins to form fibrin.
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