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
Erythropoiesis starts in:
1. kidney
2. liver
3. spleen
4. red bone marrow
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
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 |