Q. No.The function of the gap junction is to?
| 1. | Perform cementing to keep neighbouring cells together |
| 2. | Facilitate communication between adjoining cells by connecting the cytoplasm for rapid transfer of ions, small molecules and some large molecules |
| 3. | Separate two cells from each other |
| 4. | Stop substances from leaking across a tissue |
The body cells in cockroaches discharge the nitrogenous waste in the hemolymph mainly in the form of?
1. Ammonia
2. Potassium urate
3. Urea
4. Calcium carbonate
The terga,sterna and pleura of the cockroach body are joined by:
1. cementing glue
2. muscular tissue
3. arthrodial membrane
4. cartilage
Choose the correctly matched pair:
1. Tendon-Specialized connective tissue
2. Adipose tissue-Dense connective tissue
3. Areolar tissue- Loose connective tissue
4. Cartilage- Loose connective tissue
Choose the correctly matched pair:
1. Inner lining of salivary ducts- Ciliated epithelium
2. Moist surface of buccal cavity- Glandular epithelium
3. Tubular parts of nephrons- Cuboidal epithelium
4. Inner surface of bronchioles- Squamous epithelium
2. Both fore wings and hind wings develop
3. Labium develops
4. Mandibles become harder
| 1. | Smooth muscles, show branching, found in the walls of the heart |
| 2. | Cardiac muscles, unbranched muscles, found in the walls of the heart |
| 3. | Striated muscles, tapering at both ends attached to the bones of the ribs |
| 4. | Skeletal muscle, shows striations and is closely attached to the bones of the limbs |
| 1. | Malpighian tubules convert nitrogenous wastes into urea |
| 2. | Males bear short and styles not present in females |
| 3. | Nervous system comprises a dorsal nerve cord and ten pairs of ganglion |
| 4. | The fore wings are tegmina which are used in flight |
| 1. | Spiracle in metathorax, trachea, tracheoles, oxygen diffuses into cells |
| 2. | Mouth, bronchial tube, trachea, oxygen enters cells |
| 3. | Spiracles in prothorax, tracheoles, and trachea oxygen diffuses into cells |
| 4. | Hypopharynx, mouth, pharynx, trachea, tissues |
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