The causative agent of ergotism, a disease affecting rye and other cereals, is: MCQ with Answer and Explanation

Explanation:
Spermatogenesis is the process of formation of sperm cells (spermatozoa) from undifferentiated spermatogonia. This process occurs exclusively in the seminiferous tubules, which are highly coiled tubes located within the testes. The epididymis is where sperm mature and are stored, and the vas deferens transports them.

Explanation:
The Blood-Brain Barrier (BBB) is a highly selective semipermeable border that protects the brain from many substances in the blood. It is primarily formed by the tight junctions between the endothelial cells of the brain's capillaries. These endothelial cells are closely associated with the foot processes of astrocytes (a type of glial cell), which induce and maintain the tight junctions, restricting the passage of large molecules, toxins, and pathogens into the brain tissue.

Explanation:
Pancreatic juice contains inactive enzymes like trypsinogen, chymotrypsinogen, and procarboxypeptidase. When trypsinogen enters the small intestine, it is activated into trypsin by the enzyme enterokinase (secreted by the intestinal mucosa). Trypsin then digests proteins into smaller peptides. Pancreatic amylase digests carbohydrates, and lipase digests fats.