Step 1: Understand Plasma Composition. Plasma is the liquid component of blood that makes up about 55% of its volume. It is primarily composed of water (about 90%) and dissolved substances such as: Proteins: Including albumin, globulins, and fibrinogen.
Electrolytes: Such as sodium, potassium, calcium, and chloride ions.
Hormones: Various hormones produced by endocrine glands.
Fats: Lipids and cholesterol.
Other Solutes: Nutrients, waste products, and gases like carbon dioxide. However, plasma does not contain cells such as red blood cells, white blood cells, or platelets. These cellular components are suspended in the plasma but are not part of it. Step 2: Analyze Each Option.
Option (1): Red Blood Cells, White Blood Cells, and Platelets. — Incorrect, as these are not components of plasma; they are suspended in plasma.
Option (2): Red Blood Cells, Fats, Hormones, and Platelets. — Incorrect, as red blood cells and platelets are not components of plasma.
Option (3): White Blood Cells, Fats, Hormones, and Platelets. — Incorrect, as white blood cells and platelets are not components of plasma.
Option (4): Red Blood Cells, Plastids, and Platelets. — Incorrect, as red blood cells and platelets are not components of plasma, and plastids are organelles found in plant cells, not blood components. Step 3: Final Answer. $ $