Question

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 Cacca
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:

• A. A-IV, B-II, C-III, D-I
• B. A-I, B-II, C-III, D-IV
• C. A-IV, B-III, C-II, D-I
• D. A-III, B-II, C-IV, D-I

Answer 1

The Correct Option is A

To solve the matching problem for the digestive system of a cockroach, we need to associate structures in List I with their corresponding functions or features in List II. Let's analyze each structure from List I and match it to List II:

1. List I-A: The structures used for storing food. This description matches a "Crop" which is a sac-like structure used in cockroaches for storing food before it enters the gizzard for grinding. Therefore, List I-A matches with List II-IV.
2. List I-B: Ring of 6-8 blind tubules at junction of foregut and midgut. This refers to the "Gastric Cacca", small tubular structures that help in digestion by secreting digestive enzymes. Therefore, List I-B matches with List II-II.
3. List I-C: Ring of 100-150 yellow coloured thin filaments at junction of midgut and hindgut. This description fits the "Malpighian tubules" that are involved in the excretion and osmoregulation processes of the cockroach, playing a role in removing waste. Thus, List I-C matches with List II-III.
4. List I-D: The structures used for grinding the food. This function is performed by the "Gizzard", which processes food mechanically. Consequently, List I-D matches with List II-I.

Thus, the correct matching is: A-IV, B-II, C-III, D-I.

Answer 2

Matching Cockroach Organs with Their Functions:

• A. Crop – Responsible for storing food. 
  Matches with: IV. Storing food.
• B. Gastric Caeca – Aids digestion in the foregut-midgut junction. 
  Matches with: II. Aids digestion.
• C. Malpighian Tubules – Responsible for excretion in the cockroach. 
  Matches with: III. Excretion.
• D. Gizzard – Used for grinding food. 
  Matches with: I. Grinding food.

Thus, the correct answer is (1) A-IV, B-II, C-III, D-I.