Question

Secretory proteins and membrane molecules are synthesized mainly by the

Answer 1

Explanation:

Spermatogenesis is the process by which haploid spermatozoa develop from germ cells in the seminiferous tubules of the testis. ... Thus, the primary spermatocyte gives rise to two cells, the secondary spermatocytes, and the two secondary spermatocytes by their subdivision produce four spermatozoa and four haploid cells.

Answer 2

Explanation:

Secretory proteins are efficiently stored at high concentrations in zymogen granules by steps that sequentially enrich the proteins several hundred-fold over that found in the ER lumen