In the given diagram of alimentary canal of cockroach, A,B, C and D respectively are:
1. | Gizzard, Crop, Hepatic cecae and Malpighian tubules |
2. | Gizzard, Crop, Malpighian tubules and Hepatic cecae |
3. | Crop, Gizzard, Hepatic cecae and Malpighian tubules |
4. | Crop, Gizzard, Malpighian tubules and Hepatic cecae |
Consider the given statements:
I: | The crop in the alimentary canal of cockroach is also known as proventriculus, has six highly chitinous plates called teeth and helps in grinding food particles. |
II: | The gizzard is sac-like structure used for storing food in cockroach. |
1. | Only I is correct |
2. | Only II is correct |
3. | Both I and II are correct |
4. | Both I and II are incorrect |
The following diagram shows the alimentary canal of Periplaneta americana. Identify the incorrectly matched pair:
1. |
A |
Storing the food |
2. |
B |
Absorption of food |
3. |
C |
Secretion of digestive enzymes |
4. |
D |
Excretion and osmoregulation |
Match the following columns with reference to cockroach and select the correct option :
Column I | Column II | ||
(a) | Grinding of the food particles | (i) | Hepatic caeca |
(b) | Secrete gastric juice | (ii) | 10th segment |
(c) | 10 pairs | (iii) | Proventriculus |
(d) | Anal cerci | (iv) | Spiracles |
(v) | Alary muscles |
(a) | (b) | (c) | (d) | |
1. | (iii) | (i) | (iv) | (ii) |
2. | (iv) | (iii) | (v) | (ii) |
3. | (i) | (iv) | (iii) | (ii) |
4. | (ii) | (iii) | (i) | (iv) |