Which one of the following microbes is the source of acetic acid?

Options

A. Clostridium acetobutylicum
B. Acetobacter aceti
C. Gluconacetobacter liquefaciens
D. All of these

Answer

To solve the question "Which one of the following microbes is the source of acetic acid?", we can follow these steps:

### Step 1: Understand the question
The question asks us to identify which microbe is a source of acetic acid. Acetic acid is commonly produced by certain types of bacteria during fermentation processes.

### Step 2: Analyze the options
We have the following options:
- A. Clostridium Acetobutylicum
- B. Acetobacter Aceti
- C. Glucona Acetobacter Liquefaciens
- D. All of these

### Step 3: Evaluate each option
1. **Clostridium Acetobutylicum**: This is a gram-positive bacterium known for producing solvents including butanol and acetone, but it can also produce acetic acid during fermentation.

2. **Acetobacter Aceti**: This is a gram-negative, rod-shaped bacterium specifically known for converting ethanol into acetic acid. It is widely used in vinegar production.

3. **Glucona Acetobacter Liquefaciens**: This bacterium is also involved in the fermentation process and can produce acetic acid from ethanol.

### Step 4: Determine the correct answer
Since all three options (A, B, and C) are capable of producing acetic acid, we can conclude that the correct answer is:
- D. All of these

### Final Answer
The source of acetic acid is D. All of these.

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