Following are a list of extracellular matrix proteins (Column A) along with their functional characteristics (Column B): Which one of the following is the correct match? (1) A- i; B-iv; […]
Tag: Cell-Cell Communication
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Cell-Cell Communication
Animal Cell-Cell Adhesion Protein Families and Their Functional Characteristics
29. In animals, four separates families of cell — cell adhesion proteins are listed in Column A and their functional characteristics are given in Column B Which one of the […]
Cell-Cell Communication
Plasmodesmata: The Essential Communicating Junctions in Plants
Which one of the following is the communicating junction linking adjacent cells in plants, which permits small molecules to pass from cell to cell while blocking the passage of most […]
Cell-Cell Communication
Gap Junctions: Facilitating Rapid Cell-Cell Communication
Which one of the following permits the rapid diffusion of small, water-soluble molecules between the cytoplasm of adjacent cells? (1) Tight junctions (2) Anchoring junctions (3) Adherens junctions (4) Gap […]
Cell-Cell Communication
Cell Junctions in Animals: Functions and Types Explained
26. Physical attachment between cells and extracellular matrix is critical in both animals and plants because it imparts rigidity and strength to tissues and organs. However, junctions between cell-cell or […]
Cell-Cell Communication
Understanding Vertebrate Epithelial Cell Junctions and Their Functions
Physical attachment between cells important in imparting strength in tissues. Various physical cell junctions in vertebrate epithelial tissues are classified according to their primary functions. Enlisted below in column A […]
Cell-Cell Communication
Hyaluronan: The Unique Glycosaminoglycan Not Forming Proteoglycans
24. Which one of the following glycosaminoglycans is generally NOT covalently attached to protein as proteoglycans? (1) Chondroitin sulphate (2) Dermatan sulphate (3) Heparan sulphate (4) Hyaluronan Overview: Glycosaminoglycans and […]
Cell-Cell Communication
Hyaluron: A Glycosaminoglycan but Not a Proteoglycan – Key Differences Explained
Glycosaminoglycans are usually linked to proteins to form proteoglycans. Which of the following is NOT a proteo-glycan? (1) Hyaluron (2) Aggrecan (3) Betaglycan (4) Syndecan-l The correct answer is (1) […]
Cell-Cell Communication
Desmosomes: Key Intercellular Junctions in Animal Cells
Which one of the following is a type of intercellular junction in animal cells? (1) Middle lamella (2) Plasmodesmata (3) Desmosomes (4) Glycocalyx The correct answer is (3) Desmosomes, which […]
Cell-Cell Communication
Connexin: The Building Block of Gap Junction Channels
The cylindrical channels in gap junctions are made of (1) connexin. (2) collagen. (3) fibronectin. (4) N-CAM. The cylindrical channels in gap junctions are made of (1) connexin. Connexins are […]
