What are the various enzymatic types of glandular secretions in our gut helping digestion of food? What is the nature of end products obtained after complete digestion of food?

Explanation

### Step-by-Step Solution:

1. **Introduction to Digestion**:
- Digestion is the process by which food is broken down into simpler forms that can be absorbed by the body. This process occurs in the elementary canal, which includes various organs.

2. **Structure of the Elementary Canal**:
- The elementary canal consists of the following parts:
- **Mouth**: Where ingestion occurs.
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