Part A Drag the labels to identify the constituent parts of blood. Reset Help Plasma proteins Other solutes Water cost of Plasma Formed elements Red blood cells Platelets Submit Request Answer Type here to search с е 9 E?
The Correct Answer and Explanation is :
The constituent parts of blood include both liquid and solid components. Here’s a breakdown of the components and their roles:
1. Plasma (Liquid Component)
- Plasma is the liquid portion of blood that accounts for about 55% of its volume. It is primarily composed of water (around 90%), which helps in transporting various substances throughout the body.
- Plasma Proteins: These include albumin, globulins, and fibrinogen. Plasma proteins have critical roles in maintaining osmotic pressure (albumin), immune function (globulins), and blood clotting (fibrinogen).
- Other Solutes: These are dissolved substances in plasma, such as electrolytes (sodium, potassium), nutrients (glucose, amino acids), hormones, and waste products (urea, carbon dioxide). They are vital for cellular function and overall homeostasis.
2. Formed Elements (Solid Components)
- Formed Elements make up about 45% of blood volume and consist of cells and cell fragments that are suspended in plasma.
- Red Blood Cells (RBCs): Also known as erythrocytes, these are the most abundant cells in blood. Their main function is to carry oxygen from the lungs to tissues and return carbon dioxide from tissues to the lungs. They contain hemoglobin, a protein that binds to oxygen.
- Platelets: Also called thrombocytes, these are small cell fragments involved in blood clotting. They play a crucial role in wound healing by aggregating at the site of injury and forming a clot to prevent excessive blood loss.
The balance between plasma and formed elements is essential for proper circulatory function. The plasma acts as a transport medium for nutrients, waste, gases, and proteins. In contrast, the formed elements are vital for oxygen transport, immune responses, and clot formation.
In summary:
- Plasma: Water, plasma proteins, other solutes
- Formed Elements: Red blood cells, platelets