In contrast to animal cells, yeast or bacterial cell cultures can be grown on fairly simple media without the need to add amino acids or various vitamins and hormones. What is the primary reason for this?
a. Animal cells come from organisms having specialized cell types.
b. Animal cells are less capable of transporting small molecules across their membranes.
c. Animal cells typically live in association with other cells.
d. Animal cells have too many genes to be able to keep track of the biosynthesis of needed metabolites.
Ans: a. Animal cells come from organisms having specialized cell types.
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