Question: 178. Match List I with List II related to digestive system of cockroach.
| List I | List II |
|---|---|
| A. The structures used for storing of food. | I. Gizzard |
| B. Ring of 6-8 blind tubules at junction of foregut and midgut. | II. Gastric Caeca |
| C. Ring of 100-150 yellow coloured thin filaments at junction of midgut and hindgut. | III. Malpighian tubules |
| D. The structures used for grinding the food. | IV. Crop |
Choose the correct answer from the options given below:
(1) A-IV, B-II,C-III,D-I
(2) A-I, B-II,C-III,D-IV
(3) A-IV, B-III,C-II,D-I
(4) A-III, B-II,C-IV,D-I
Answer: Option (1)
Explanation:
The crop is a thin-walled structure of the foregut used for temporary storage of food,
so A matches with IV.
Gastric caeca are present as a ring of 6–8 blind tubules at the junction of the foregut and
midgut and help in digestion, so B matches with II.
Malpighian tubules are present as 100–150 yellow coloured thin filaments at the junction of the midgut
and hindgut and function in excretion, so C matches with III.
The gizzard has chitinous plates and helps in grinding the food,
so D matches with I.
Therefore, the correct matching is A-IV, B-II, C-III, D-I,
corresponding to Option (1).