Question

How many filamentous Malpighian tubules are found in cockroach? (a) 100 to 150 (b) 50 to 100 (c) 150 to 200 (d) 200 to 250

Short answer

(b) 50 to 100

Step-by-step solution

Recall Knowledge

Recall from your biology lessons or textbooks what you learned about the number of Malpighian tubules in a cockroach.

Select Correct Choice

Compare the recalled knowledge with the provided options in the exercise. Then select the choice that matches your recalled information.

Key concepts

Excretory System of Cockroach

Understanding the excretory system of a cockroach is essential for comprehending how these insects effectively remove waste from their bodies. In cockroaches, the excretory system is primarily composed of Malpighian tubules. They play a crucial role in the process of excretion and osmoregulation.

Malpighian tubules are blind-ended, thread-like structures that are attached at the point where the midgut meets the hindgut. They float freely within the haemolymph, a fluid equivalent to blood in insects. Through differential secretion and absorption of ions and organic compounds, Malpighian tubules help in the removal of nitrogenous wastes such as uric acid.

Moreover, they are also involved in maintaining the water balance of the insect. The efficiency of this system means that cockroaches, like many other insects, can thrive in various environments, making them remarkably adaptable creatures.

Number of Malpighian Tubules

For inquisitive minds or those preparing for exams like NEET, it is useful to remember one of the more interesting facts about the cockroach's anatomy–the number of Malpighian tubules. The exact number of Malpighian tubules can vary slightly among different species of cockroaches.

However, in the common cockroach, there are typically 150 to 200 of these tubules. Knowing the range of these figures is not only valuable for academic purposes but also provides insight into the complexity of the insect's excretory system. It's intriguing to think about how such a small creature requires so many tubules to process and expel waste from its body.

Biology NEET Questions

When you're studying for competitive exams like the National Eligibility cum Entrance Test (NEET) for biology, questions related to the anatomy and physiology of different organisms are quite common. For example, knowing details about the Malpighian tubules of a cockroach could be the key to answering a question correctly.

These questions test a student's understanding of biological diversity and the adaptation of organisms. It is important for students to pay attention to such details because they illustrate fundamental biological principles. Additionally, practicing with actual questions from textbooks or past NEET papers can significantly boost a student's confidence and performance on exam day.