Gametes are haploid, while somatic cells are diploid. what is the difference between a haploid cell and a diploid cell?

a haploid cell has one half chromosome from each parent, but a diploid cell has two chromosomes from each parent.
a haploid cell has one of each chromosome, but a diploid cell has two of each chromosome.
a haploid cell has one nucleus, but a diploid cell has two nuclei.
a haploid cell has one spindle, but a diploid cell has two spindles

The correct answer is-

A haploid cell has one of each chromosome whereas a diploid cell contains two of each chromosome.

Haploid cell is the genetic state of cell that represents only one/ single set of chromosomes (depicted by n, which represents number of chromosome in one basic set) in the cell.

On the other hand, diploid cell (depicted by 2n that is two set of chromosomes) represents two basic sets of chromosome in the cell. This means that it has double the number of chromosomes of the haploid cell.

In other words, each chromosome is only present once in haploid cell but two times in case of diploid cell.

Thus, second option is the right answer.

the answer is b. glad to .

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.