Question

question 28
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which cellular process ensures a continuous gradient for glucose uptake in the absorptive state?
gluconeogenesis
conversion of glucose to glucose - 6 - phosphate
conversion of glucose to fatty acids.
conversion of glucose to glycogen

Explanation:

Glucose uptake into cells is driven by a concentration gradient. When glucose enters a cell and is quickly converted to glucose - 6 - phosphate (by hexokinase or glucokinase), the intracellular glucose concentration remains low. This maintains a favorable concentration gradient (higher extracellular glucose concentration compared to intracellular) for continuous glucose uptake. Gluconeogenesis is the production of glucose from non - carbohydrate sources (not relevant for maintaining a gradient for glucose uptake in the absorptive state). Conversion of glucose to fatty acids or glycogen occurs after glucose has entered the cell and is not the primary process for maintaining the uptake gradient.

Answer:

Conversion of glucose to glucose - 6 - phosphate