Compound epithelia is present in -
1. Dry surface of the skin.
2. Moist surface of buccal cavity.
3. Inner lining of ducts of salivary gland.
4. All of these
Which of the following statement is incorrect with respect to Rana tigrina?
1. Muscular tongue is bilobed at tip and free from behind
2. Maxillary teeth are arranged along the margin of upper jaw and lower jaw is toothless
3. Tadpole larva of frog is with comparatively short alimentary canal than adult
4. Tail is present in the life cycle of frog
Match the following cell structure with its characteristic feature:
| Column-I | Column-II | ||
| (a) | Tight junctions | (i) | Cement neighboring cells together to form a sheet |
| (b) | Adhering junctions | (ii) | Transmit information through chemicals to another cell |
| (c) | Gap junctions | (iii) | Establish a barrier to prevent leakage of fluid across epithelial cells |
| (d) | Synaptic junctions | (iv) | Cytoplasmic channels to facilitate communication between adjacent cells |
Select the correct option from the following:
| Options: | (a) | (b) | (c) | (d) |
| 1. | (ii) | (iv) | (i) | (iii) |
| 2. | (iv) | (ii) | (i) | (iii) |
| 3. | (iii) | (i) | (iv) | (ii) |
| 4. | (iv) | (iii) | (i) | (ii) |
Which of the following statements is correct regarding Cockroach?
1. Compound eye is also called as ocellus
2. Spiracle helps in excretion
3. Phallomere is present in female Cockroach
4. Ventral nerve cord
In __i__, the collagen fibres are present in rows
between parallel bundles of fibres. It is an example of
dense __ii__ connective tissue
1. i-cartilage; ii-regular
2. i-cartilage; ii-irregular
3. i-tendon; ii-irregular
4. i-tendon; ii-regular
Identify correctly matched (a), (b), (c):
1. Colon, Mesentron, Crop
2. Ileum, Mesentron, Gizzard
3. Ileum, Mesentron, Crop
4. Colon, Mesentron, Gizzard
Which of the following epithelium their main function is to provide protection against chemical and mechanical stresses?
1. Simple epithelium.
2. Compound epithelium.
3. Columnar epithelium.
4. Cuboidal Epithelium
Tick mark of the false statement with respect to Periplaneta, Americana.
| 1. | Mandible help in incising and grinding. |
| 2. | Malpighian tubules are present at the junction of midgut and ileum. |
| 3. | Hepatic caeca are present at the junction of crop and gizzard. |
| 4. | Mushroom gland is present in 6-7th abdominal segments and functions as an accessory reproductive gland in males. |
Intercalated disc are a type of
1. Adherent junction.
2. Desmosomes.
3. Communicating junction.
4. Tight junction
Identify the incorrect statement regarding the blood vascular system of cockroach:
| 1. | Blood vessels are poorly developed and open into hemocoel |
| 2. | The hemolymph is composed of colourless plasma and hemocytes |
| 3. | Heart lies along the mid-ventral line of thorax and abdomen |
| 4. | Blood from sinuses enter heart through ostia |