Answer:
Cell membrane is considered as boundary of the cell.
Explanation:
Cell membrane is the boundary of the cell which is selectively permeable that allows the micro-nutrients, water and gases like oxygen and carbondioxide etc through the process of diffusion. When the water goes inside due to diffusion it is the indicator that there is less quantity of water present inside the cell as compared to the external environment, this phenomena is called hypertonic.
Answer: Agammaglobulinemia
Explanation:
Agammaglobulinemia may be defined as the inherited immuno deficiency disorder. The antibodies are present in minute amount in the serum of the affected individual.
Agammaglobulinemia is a type of the medical condition in which the body is unable to produce gamma globulins. The lymphocytes like B and T cells are absent in this disease.
Thus, the correct answer is option (1).