Washington Esthetician State Board Practice Exam

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Which of the following are components of blood?

  1. Red and white corpuscles, plasma, and glucose

  2. Red and white corpuscles, platelets, plasma, and hemoglobin

  3. Platelets, plasma, and cholesterol

  4. Hemoglobin and albumin

The correct answer is: Red and white corpuscles, platelets, plasma, and hemoglobin

The components of blood include red and white corpuscles, platelets, and plasma. Red corpuscles, or red blood cells, are essential for transporting oxygen throughout the body, while white corpuscles, or white blood cells, play a crucial role in the immune system, helping to defend the body against infections. Platelets are important for blood clotting, and plasma acts as the liquid medium that carries these cells as well as nutrients, hormones, and waste products. Additionally, hemoglobin, a protein found in red blood cells, is responsible for binding oxygen and facilitating its transport. This makes option B the most complete and accurate description of blood components, as it recognizes the critical role of all these elements in maintaining bodily functions. The other choices either omit essential components of blood or include elements that are not classified as blood components. For example, glucose and cholesterol are significant substances in the body but are not classified as components of blood itself.

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