Question

Match each description with a component of blood in the key. Answers can be used more than once. a. red blood cells b. white blood cells c. red and white blood cells and platelets d. plasma Formed elements

Short answer

The components of blood were matched to their descriptions as follows: Description 1: a - Red blood cells Description 2: b - White blood cells Description 3: c - Red and white blood cells and platelets Description 4: d - Plasma

Step-by-step solution

Description 1: Red blood cells

Red blood cells (also known as erythrocytes) are primarily responsible for the transport of oxygen and carbon dioxide to and from the cells of the body. The answer for this description is a - 'red blood cells'.

Description 2: White blood cells

White blood cells (also known as leukocytes) are responsible for the immune response and defense against bacteria, viruses, and other infections in the body. The answer for this description is b - 'white blood cells'.

Description 3: Red and white blood cells and platelets

Red blood cells, white blood cells, and platelets are all considered complete blood cells, as they each serve a unique function within the body. Platelets are responsible for blood clotting and wound healing. The answer for this description is c - 'red and white blood cells and platelets'.

Description 4: Plasma

Plasma is the liquid part of the blood composed mostly of water, but also containing proteins, electrolytes, nutrients, and waste products. Plasma acts as a carrier for various substances in the body, including hormones, gases, nutrients, and waste products. The answer for this description is d - 'plasma'.

Summary

In this exercise, the components of blood were matched to their descriptions as follows: Description 1: a - Red blood cells Description 2: b - White blood cells Description 3: c - Red and white blood cells and platelets Description 4: d - Plasma