Q. No.Which of the following statements is true for cockroaches?
1. The total number of ovarioles are five in both ovaries
2. The larval stage is called naiad
3. Anal styles are absent in females
4. They are ureotelic
How many molting will be observed in the case of female cockroaches for 20 eggs thinking that all will be converted in adults?
1.260
2.120
3.130
4. 660
2. Both fore wings and hind wings develop
3. Labium develops
4. Mandibles become harder
What external changes are visible after the last moult of a cockroach nymph?
1. Mandible become harder
2. Anal cerci develop
3. Both fore wings and hind wings develop
4. Labium develops
Match the following columns with reference to cockroach and select the correct option:
| Column - I | Column - II |
| (a) Grinding of | (i) Hepatic caeca the food particles |
| (b) Secrete gastric | (ii) 10th segment juice |
| (c) 10 pairs | (iii) Proventriculus |
| (d) Anal cerci | (iv) Spiracles |
| (v) Alary muscles |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (i) | (iv) | (ii) |
| 2. | (iv) | (iii) | (v) | (ii) |
| 3. | (i) | (iv) | (iii) | (ii) |
| 4. | (ii) | (iii) | (i) | (iv) |
Match the following with respect to cockroach
| Column l | Column lI | ||
| a. | Ovaries | (i) | 4th - 6th segment |
| b. | MUshroom gland | (ii) | 2nd - 6th segment |
| c. | Testis | (iii) | 14th - 16th segment |
| d. | Ootheca number | (iv) | 6th - 7th segment |
| (v) | 9 - 10 |
1. a(ii), b(iv), c(i), d(v)
2. a(ii), b(iv), c(i), d(iii)
3. a(i), b(iii), c(ii), d(v)
4. a(iii), b(ii), c(i), d(iv)
Consider the following statements A, B, C & D with certain blanks. Find the option which correctly fills up these blanks
| A. | The ootheca of cockroach is about __(i)____ long. |
| B. | The development of P americana is ___(ii)___, meaning there is development through ___(iii)____ stage. |
| C. | In the head region of cockroach, the brain is represented by ___(iv)___ ganglion, which supplies nerves to antennae and ____(v)___. |
| D. | The respiratory system of cockroach consists of a network of trachea, that opens through ____(vi)____ of small holes called spiracles present on the ____(vii)____ side of the body. |
B - (ii) Paurometabolous
(iii) Nymphal
C - (iv) Supra-oesophageal
(v) compound eyes
2. B-(ii) Paurometabolous
C-(iv) Supra-oesophageal
(v) wings
D -(vi) 10 pairs
(vii) Lateral
3. A - (i) 8 mm
C - (iv) Sub-oesophageal
(v) Compound eyes
D - (vi) 10 pairs
(vii) Dorsal
4. A - (i) 8 mm
B - (ii) Paurometabolous
(iii) Nymphal
C - (iv) Supra-oesophageal
(v) compound eyes
D - (vi) 10 pairs
(vii) Lateral
Following is diagrammatic representation of female
reproductive system of cockroach.
Find the right marking and function performed by
that part
1. A Conglobate gland Converting of sperm
B Spermatheca Storage of sperm
2. A Phallomere Covering around egg
B Titillator Opening of spermatophore
3. A Vestibule Place to store fertilized eggs
B Spermatophore Storage of sperms
4. A Collaterial gland From the wall of ootheca
B Spermatheca Storage of sperms in female
On an average female cockroach produce ________ oothecae, each containing ________ eggs.
| 1. | 9-10, 14-16 | 2. | 14-16, 9-10 |
| 3. | 2-4, 10-12 | 4. | 6-8, 8-10 |
Match each item in Column I with one item in Column II regarding anatomy of cockroach and choose your answer from the codes given below :
|
|
Column I |
|
Column II |
|
I. |
Testes |
1. |
2nd to 6th |
|
II. |
Ovaries |
2. |
4th to 6th |
|
III. |
Spermatheca |
3. |
6th |
|
IV. |
Mushroom gland |
4. |
6th-7th |
|
|
I |
II |
III |
IV |
|
1. |
1 |
2 |
3 |
4 |
|
2. |
2 |
1 |
4 |
3 |
|
3. |
2 |
1 |
3 |
4 |
|
4. |
1 |
2 |
4 |
3 |
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