Is cake made with micro organisms?

Here's why:

* Ingredients: Cake is typically made with ingredients like flour, sugar, eggs, butter, and milk. These are not living organisms.

* Baking Process: The baking process uses heat to transform the ingredients into a cake. The heat kills any microorganisms that might be present in the ingredients.

* Yeast in Baking: While yeast is a microorganism, it's used in bread-making, not cake-making. Yeast helps bread rise by producing carbon dioxide.

However, there is one exception:

* Sourdough Bread: Sourdough bread does utilize a naturally occurring "starter" made of flour and water that contains wild yeast and bacteria. This "starter" contributes to the distinctive flavor of sourdough.

So, while cake itself is not made with microorganisms, some related baking processes may involve them, especially in the case of sourdough.