Question

Among malpighian tubules, fat bodies, nephrocytes, uricose glands, gastric caecae, trachea, collateral glands, phallic glands, crop and gizzard, how many are concerned with the removal of nitrogenous wastes in the form of uric acid?

Answer 1

Removal of uric acid in cockroaches:

1. Each of the sections listed is present in the cockroach and has a different purpose.
2. The hepatic caeca consists of 6-8 tubules arranged in a ring at the junction of the foregut and midgut.
3. They emit digestive fluids to aid in the digestion process.
4. Collateral glands are found in the third and fourth abdominal segments of female cockroaches and aid in the secretion of the ootheca egg casing.
5. They have an extremely efficient breathing system but no lungs.
6. Instead, they breathe through exterior valves known as spiracles, which deliver air directly to the cells via tubes known as the trachea.
7. The meal passes through the esophagus before entering the crop.
8. The crop momentarily keeps the masticated food in it. It then travels to the gizzard, where the food is ground.
9. The gastric caeca secretes digestive enzymes that act on the food in the stomach.
10. Malpighian tubules, uricose gland, fat bodies, and nephrocytes are elements of the cockroach's excretory system that aid in the evacuation of nitrogenous wastes as well as the generation of uric acid.
11. Hence Four portions of the given part deal with the removal of nitrogenous wastes in the form of uric acid.