NEETZoologyStructural Organisation in Animals
Match List-I with List-II regarding the structures associated with the alimentary canal of a cockroach: List-I List-II (A) Crop (I) Grinding of food particles (B) Gizzard (II) Secreting digestive juice (C) Hepatic caeca (III) Storing of food (D) Malpighian tubules (IV) Removal of excretory products Choose the correct answer from the options given below:
Options
- A(A)-(III), (B)-(I), (C)-(II), (D)-(IV)
- B(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
- C(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
- D(A)-(I), (B)-(III), (C)-(IV), (D)-(II)
Correct answer
A. (A)-(III), (B)-(I), (C)-(II), (D)-(IV)
Step-by-step solution
In the alimentary canal of a cockroach, the crop is a sac-like structure used for storing food. The gizzard (proventriculus) has an outer layer of thick circular muscles and thick inner cuticle forming six highly chitinous plates called teeth, which help in the grinding of food particles. A ring of 6-8 blind tubules called hepatic or gastric caeca is present at the junction of foregut and midgut, which secrete digestive juice. At the junction of midgut and hindgut is another ring of 100-150 yellow-coloured thin fil