Question

question ① what functions would be impaired if the cell surface carbohydrates were missing? select all that apply recognition lubrication anchoring glycogen formation

Explanation:

• Recognition: Cell - surface carbohydrates (as part of glycoproteins and glycolipids) are involved in cell - cell recognition, like in the immune system where cells recognize self - cells and foreign cells. If they are missing, recognition functions will be impaired.
• Lubrication: Some cell - surface carbohydrates contribute to the lubrication of cells, for example, in the lining of body cavities or blood vessels. Without them, lubrication is affected.
• Anchoring: Cell - surface carbohydrates can be involved in anchoring cells to the extracellular matrix or to other cells. So, their absence would impair anchoring.
• Glycogen formation: Glycogen formation occurs inside cells (in the cytoplasm, mainly in liver and muscle cells) and is related to intracellular carbohydrate metabolism, not cell - surface carbohydrates. So, glycogen formation is not affected by the absence of cell - surface carbohydrates.

Answer:

• Recognition
• Lubrication
• Anchoring