Chapter 11: Blood

Front

What is anemia?

Back

A condition characterized by a deficiency of red blood cells or hemoglobin in the blood, leading to fatigue and weakness.

Front

What are the main types of anemia?

Back

1. Hemorrhagic anemia: caused by blood loss. 2. Aplastic anemia: caused by bone marrow failure. 3. Pernicious anemia: caused by vitamin B12 deficiency. 4. Iron deficiency anemia: caused by inadequate iron.

Front

What is the function of antibodies?

Back

Proteins secreted by white blood cells that help identify and neutralize foreign objects like bacteria and viruses.

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What is plasma?

Back

The liquid component of blood that suspends blood cells and contains water, salts, proteins, and other substances.

Front

What is the role of hemoglobin in the blood?

Back

Hemoglobin is a protein in red blood cells that binds to oxygen and carries it from the lungs to the rest of the body.

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What is the significance of blood type AB?

Back

Blood type AB illustrates the principle of codominance, where both A and B antigens are expressed on the surface of red blood cells.

Front

What is the primary component of hemoglobin?

Back

Hemoglobin is composed of four globin chains, each containing a heme group that holds an iron atom.

Front

What is the difference between antigens and antibodies?

Back

Antigens are substances that trigger an immune response, while antibodies are proteins produced by the immune system to neutralize antigens.

Front

What causes iron deficiency anemia?

Back

Iron deficiency anemia is caused by insufficient iron intake, blood loss, or an inability to absorb iron.

Front

What is the role of white blood cells?

Back

White blood cells are part of the immune system and help the body fight infections and other diseases.