Question

3. Differentiate between members of each of the
following pairs with reference to phrases
brackets:
(a) Antibodies and antibiotics (source)
(b) Serum and vaccine (composition)
(0) Erythrocytes and leukocytes (function)
(d) Tricuspid and bicuspid valves (location)​

Answer 1

Answer:

Antibody vs.

Two other words that come up in the context of disease are antibody and antigen—and yes, they are easy to get mixed up with antibiotics. Antibodies are special proteins that the immune system produces in response to antigens. Antigens are substances that can stimulate the body's production of antibodies.

Serum and vaccines differ in how they prevent infection. Serum is defined as, “an amber-colored, protein-rich liquid that separates out when blood coagulates. The blood serum of an animal, used especially to provide immunity to a pathogen or toxin by inoculation or as a diagnostic agent”. A vaccine is defined as, “a substance used to stimulate the production of antibodies and provide immunity against one or several diseases, prepared from the causative agent of a disease, its products, or a synthetic substitute, treated to act as an antigen without inducing the disease.

Explanation:

Red blood cells are called Erythrocytes. White Blood Cells are called Leucocytes or Leukocytes. WBCs have an irregular shape. Size varies from 6 – 8 µm in diameter.

The mitral valve is also called the bicuspid valve because it contains two leaflets or cusps. ... The tricuspid valve has three leaflets or cusps and is on the right side of the heart. It is between the right atrium and the right ventricle, and stops the backflow of blood between the two.