Which one of the following is correct?a)Plasma = Blood − Lymphoc...
It has four main components: plasma, red blood cells, white blood cells, and platelets. Blood has many different functions, including: transporting oxygen and nutrients to the lungs and tissues. forming blood clots to prevent excess blood loss.
Which one of the following is correct?a)Plasma = Blood − Lymphoc...
Explanation:
Blood is a fluid connective tissue consisting of plasma and blood cells. The correct option is D.
Blood can be divided into two main components - plasma and blood cells. Plasma is the liquid part of blood, while blood cells include red blood cells (RBCs), white blood cells (WBCs), and platelets.
Plasma:
- Makes up about 55% of blood volume
- Is a straw-colored liquid
- Contains water, salts, enzymes, hormones, and proteins (such as albumin, fibrinogen, and globulins)
- Helps to maintain blood pressure, pH balance, and body temperature
- Carries nutrients, wastes, and gases (such as oxygen and carbon dioxide)
Blood Cells:
- Red Blood Cells (RBCs):
- Also called erythrocytes
- Make up about 45% of blood volume
- Contain hemoglobin, which binds to oxygen and helps to transport it to tissues
- Are produced in the bone marrow
- White Blood Cells (WBCs):
- Also called leukocytes
- Make up less than 1% of blood volume
- Are involved in the immune response, fighting infection and disease
- Include different types such as lymphocytes, neutrophils, eosinophils, basophils, and monocytes
- Platelets:
- Are cell fragments that help with blood clotting
- Are produced in the bone marrow
Therefore, the correct option is D - Blood = Plasma + RBCs + WBCs + Platelets.