Q. No.Match the following
Column - I
Column - II
a.
Squamous epithelium
(i)
Protection against chemical and mechanical stresses
b.
Cuboidal epithelium
(ii)
Movement of particle in a specific direction
c.
Compound epithelium
(iii)
Formation of diffusion boundary
d.
Ciliated epithelium
(iv)
Secretion and absorption
1. a(i), b(iv), c(ii), d(iii)
2. a(iii), b(iv), c(i), d(ii)
3. a(ii), b(i), c(iii), d(iv)
4. a(iv), b(i), c(iii), d(ii)
2. a(iii), b(iv), c(i), d(ii)
3. a(ii), b(i), c(iii), d(iv)
4. a(iv), b(i), c(iii), d(ii)
Digestive system of cockroach is not characterised by
| 1. | A muscular gizzard provided with six cuticular teeth in armarium |
| 2. | Presence of twenty blind glandular hepatic caeca at posterior end of mesenteron |
| 3. | Presence of six rectal papillae helping in absorption of water and salts |
| 4. | Presence of cuticular lining in foregut and hind gut |
Following are four statements A to D. Choose the option which includes a set of correct statements
| A. | In Periplaneta, males bear a pair of short, thread like anal styles which are absent in females |
| B. | In both sexes of Periplaneta, the 10th segment bears a pair of jointed filamentous structures called anal cerci |
| C. | In cockroach mesothoracic wings (fore wings) are transparent, membranous and are used in flight |
| D. | In female cockroach, there is a pair of mushroom glands |
Options:
1. A & C
2. B & C
3. A & B
4. C & D
Which of the following provides structural and functional link between the individual cells in epithelial tissues?
| 1. | Extracellular fluid which binds the various cells in the tissue together |
| 2. | Cell junctions |
| 3. | Connective tissue |
| 4. | Basement membrane |
Which of the following is mismatched?
| 1. | Squamous epithelium: Walls of blood capillaries and alveoli of lungs |
| 2. | Cuboidal epithelium: Tubular part of nephrons |
| 3. | Ciliated epithelium: Bronchioles, fallopian tubes |
| 4. | Columnar epithelium: Walls of blood vessels |
The following diagram shows blood vascular system of cockroach with certain labelled parts a, b & c. Which of the following statements is/are incorrect regarding this system?
| A. | The blood vascular system of cockroach is of open type with well developed blood vessels which open into space (haemocoel). |
| B. | The haemolymph is composed of colourless plasma and haemocytes. |
| C. | The labelled part 'a' represents anterior aorta emerging from first chamber of heart bearing ostia on either side. |
1. C only
2. B & C
3. A only
4. All of the above statements are correct
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
Given below is a diagrammatic representation of a glandular tissue
Identify the structure labelled as 'A' and choose the correct option with respect to its example.
| 1. | Gastric gland | 2. | Goblet cells |
| 3. | Oxyntic cells | 4. | Sebaceous gland |
Which of the following is not a correct statement for neuroglial cell?
| 1. | Neuroglial cells make up more than one half the volume of neural tissue in our body |
| 2. | It protects and supports the neurons |
| 3. | When this cell is suitably stimulated, an electrical disturbance is generated which swiftly travels along its plasma membrane |
| 4. | All the above options are correct |
Given below is a diagrammatic representation of alimentary canal of cockroach.
Choose the option which is not correct with respect to the function of labelled structure A, B, C and D
| 1. | Oesophagus opens into a sac like structure labelled as A used for storing of food. |
| 2. | B helps in grinding of food because it have an outer thick cuticular layer and inner muscular layer. |
| 3. | C is present at the junction of foregut and midgut and secretes digestive juice. |
| 4. | D helps in removal of excretory product from haemolymph. |
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