How much is the filtering force required in the glomerulus? What is the nature of the filtrate in the PCT?

Explanation

### Step-by-Step Solution:

1. **Understanding the Filtering Force in the Glomerulus:**
- The glomerulus is a network of capillaries located at the beginning of the nephron in the kidney. It is responsible for filtering blood to form urine.
- The filtering force required in the glomerulus is primarily due to the blood pressure within the capillaries.
- The average pressure that drives the filtration process in the glomerulus is approximately **60 mmHg** (millimeters of mercury). This pressure is essential for pushing the blood through the filtration barrier.

2. **Nature of the Filtrate in the Proximal Convoluted Tubule (PCT):**
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