Question

Conglobate gland is found in the reproductive organs of
A. Earthworm
B. Housefly
C. Male cockroach
D. Female cockroach

Answer 1

The male conglobate gland is a reproductive organ that has been anatomically close to the accessory glands. From a practical perspective, it's been presumed that the conglobate gland is involved in the production of the spermatophore.

Complete step by step answer: Conglobate gland is found in the reproductive organs of a male cockroach. It is a broad, extended sac-like framework underneath the mushroom gland as well as the ejaculatory duct. It opens mostly on sides of the male gonopore. The production of the accessory glands is coupled with the sperm. The gland is a large, club-shaped accessory gland. Its lateral, wider end lies a bit to the side of the nerve cords in the sixth section. It narrows into a tubular form and ultimately opens through a different opening closer to the male gonopore only at the back of the body.
Hence, the correct answer is option C.

Additional Information: In general, previous endocrinology studies have suggested that juvenile hormone may impact conglobate maturation of the gland. In the current work, taking the cockroach conglobate Blattella germanica as a prototype, researchers have examined the pattern of proteins throughout maturation, the consequences of allatectomy, and the depletion of the proteins of the gland following sperm formation. This shows that proteins from such a gland are involved in the formation of the spermatophore. Since the very beginning, as occurs in the accessory reproductive glands. After mating, new protein deposition starts in the conglobate gland. Increasing Juvenile hormone biosynthetic pathway levels are essential in order to enhance the incremental aggregation of proteins in a new gland maturation cycle.

Note: Male cockroaches can be easily identified from the females by their anal style and wings that are usually large. The substantial increase in juvenile hormone levels is parallel to the rise in protein levels in the conglobate gland, implying the hypothesis that juvenile hormone and conglobate gland maturation get a functional link.