Which type of cells donot obtain their requirements of food from outside ?

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which type of cells do not obtain their food from outside sources, meaning they must be able to produce their own food.

2. **Identifying the Type of Cells**: The cells that can produce their own food are known as photosynthetic cells. These cells are capable of converting light energy into chemical energy.

3. **Location of Photosynthetic Cells**: Photosynthetic cells are primarily found in the leaves of plants. They are also present in other photosynthetic organisms, such as algae and certain bacteria.

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