Question

1. During mammary gland development, epithelial stem cells develop into all of the following cellsEXCEPT?

Ductal cells
Alveolar cells
Myoepithelial cells
Adipocytes

2. All of the following sentences about immunoglobulins in colostrum and milk are correct EXCEPT?

Immunoglobulins are synthesized by alveolar epithelial cells.
Immunoglobulins are derived mainly from the lymphatic fluid, which are taken up by alveolar epithelial cells through endocytosis and secreted into milk by exocytosis.
Immunoglobulins are important for the health of neonatal calves.
Colostrum contains much higher levels of immunoglobulins compared to regular milk.

3. Compared with innate immunity, adaptive immunity is characterized by all of the following EXCEPT?

Fast response

Slow response

Specificity
      
Antibody mediated

Answer 1

Q1. Option 4 Adipocytes is correct. Adipocytes are fats or lipids storing cells, they are developed from mesenchymal stem cells.

Epithelial cells are cells that are present on the suface, this types of cells developed from epithelial stem cells.

Q2. Option 1 is correct. Immunoglobulins are synthesized by alveolar epithelial cells. They only produced milk.

The basolateral membrane takes up maternal immunoglobulins by receptor-mediated endocytosis.

Q3. Option 1. Fast reaction.

Adaptive immunity is very specific to the pathogen but the response is slow compared to innate immunity. But when the same pathogen infects our body for the second time, adaptive immunity can be fast.