Which of the following event will not take place if the saliva lacks in salivary amylase?

Options

A. break down of starch to simple sugar
B. Breakdown of proteins
C. Break down of fats
D. Creating of a acidic medium

Explanation

To solve the question, "Which of the following events will not take place if the saliva lacks salivary amylase?", we will analyze each option step by step.

### Step 1: Understand the role of salivary amylase
Salivary amylase is an enzyme present in saliva that is responsible for breaking down starch into simpler sugars (maltose and dextrin) through a process called hydrolysis.

**Hint:** Remember that enzymes are biological catalysts that speed up chemical reactions.

### Step 2: Analyze the options provided
1. **No breakdown of starch into simple sugars**: Since salivary amylase is responsible for this breakdown, if it is absent, this process will not occur.

2. **No breakdown of protein**: Salivary amylase does not act on proteins. The breakdown of proteins is primarily facilitated by different enzymes like pepsin in the stomach.

3. **No breakdown of fat**: Salivary amylase does not break down fats. The digestion of fats begins in the stomach and is further processed in the small intestine by lipases.

4. **No creation of acidic medium**: Salivary amylase does not create an acidic medium; it functions optimally in a slightly alkaline environment.

### Step 3: Determine which event will not take place
Given the analysis:
- The absence of salivary amylase will directly affect the breakdown of starch into simple sugars (Option 1).
- The other options (2, 3, and 4) are not related to the function of salivary amylase.

Thus, the correct answer is **Option 1: There will be no breakdown of starch into simple sugars**.

### Final Answer:
If saliva lacks salivary amylase, the event that will not take place is the breakdown of starch into simple sugars.

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