Selective and differential media lab report -
1. Why are bile salts and sodium desoxycholate used in certain selective media?
2. How can one identify coliforms on MacConkey's agar?
3. How does one differentiate Salmonella from Shigella colonies on Hektoen agar?
4. What is the composition of mannitol salt agar? For what organism is this medium selective? What ingredient makes it selective?