Which mineral activates ATPase and ` alpha ` - amylase ?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Enzymes**: The question asks about the mineral that activates ATPase and alpha-amylase. ATPase is an enzyme that catalyzes the hydrolysis of ATP (adenosine triphosphate) to ADP (adenosine diphosphate) and inorganic phosphate. Alpha-amylase is an enzyme that breaks down starch into simpler carbohydrates.

2. **Role of Minerals in Enzyme Activation**: Enzymes often require minerals or metal ions for their activation. These minerals can act as cofactors that help in the proper functioning of the enzymes.

3. **Identifying the Required Mineral**: Both ATPase and alpha-amylase require a specific mineral for their activation. Upon reviewing the functions and requirements of these enzymes, it is established that calcium is the mineral that activates both ATPase and alpha-amylase.

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