What is the difference between diploid and haploid cells? hoplold cels have 1 set of chromosomes. while diplold cells have 2 sets of chromosomes hagloid cells have 2 set of chromosomes, and diplold cells have 2 sets of chromosomes haplold celis have 1 set of chromosomes, and diploid cells have 1 sets of chromosomes haploid celis have 2 set of chromosomes, while diploid cells have 1 sets of chromosomes Question 23 Briefly define and describe the two phases of the alternation of generations cycle of plants..