Can yeast grow on MAC agar?

Yes, yeast can grow on MacConkey (MAC) agar, although it is primarily designed for the isolation of Gram-negative bacteria, particularly enteric bacteria. MAC agar contains bile salts and crystal violet, which inhibit the growth of Gram-positive organisms, but many yeasts, such as Candida species, can still grow on this medium. However, the growth of yeast may not be as prominent or well-defined as that of bacteria.