Microvilli are filamentous structures on the surface of intestinal cells. Their formation depends on microfilaments. What would happen to intestinal cells when microfilaments’ formation is blocked by cytochalasin, a chemical that inhibits actin polymerization? Surface area decreases; cell volume decreases; efficiency of nutrient uptake increases. Surface area does not change; cell volume decreases; efficiency of nutrient uptake increases. Surface area decreases; cell volume decreases; efficiency of nutrient uptake does not change. Surface area decreases; cell volume does not change; efficiency of nutrient uptake decreases.

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explanation:

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it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.

i think it is d. objects resist changes in their state of motion.