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 four sketches (A, B, C, and D) given below, represent four different types of animal tissues. Which one of these is correctly identified in the options given, along with its correct location and function?
Tissue | Location | Function | ||
1. | (C) | Collagen fibres | Cartilage | Attach skeletal muscles to bones |
2. | (D) | Smooth muscle tissue | Heart | Heart contraction |
3. | (A) | Columnar epithelium | Nephron | Secretion and absorption |
4. | (B) | Glandular epithelium | Intestine | Secretion |
The cell junctions called tight, adhering and gap junctions are found in:
1. muscular tissue
2. connective tissue
3. epithelial tissue
4. neural tissue
In which one of the following preparations are you likely to come across cell junctions most frequently?
1. Ciliated epithelium
2. Thrombocytes
3. Tendon
4. Hyaline cartilage