The distribution of melanosomes in cells is tightly regulated in animals that rapidly change color. dark-colored cells have melanosomes scattered throughout the cytoplasm while light-colored cells have them aggregated near the nucleus. how could cells use microtubules and motor proteins to change the distribution of melanosomes

1. the melanosomes move along microtubule tracks using motor proteins.2. kinesin would be responsible for moving melanosomes outward to generate dark-colored cells.3. dynein would be used for moving melanosomes back to the nucleus in light-colored cells.4. microtubules originate near the nucleus of animal cells, and the positive ends project outward.

4, 3, 2, 1

Explanation:

Microtubules originate near the nucleus of animal cells, and the positive ends project outward.

Dynein would be used for moving melanosomes back to the nucleus in light-colored cells.

Kinesin would be responsible for moving melanosomes outward to generate dark-colored cells.

The melanosomes move along microtubule tracks using motor proteins.

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.

other information encoded in your genes might distinguish you from the others in the group