Topic Details (Notes format)

Excretory System and Waste Removal

Subject: General Science

Book: NCERT Biology Class 12

Study of how the body removes metabolic waste.
- **Kidneys and Nephron**:
- Filtration, reabsorption, secretion.
- **Urine Formation**:
- Role of ADH and osmoregulation.
- **Kidney Disorders**:
- Stones, renal failure, dialysis.

**Possible Exam Questions:**
1. Describe the structure and function of a nephron.
2. Explain the process of urine formation.
3. How does osmoregulation maintain water balance?
4. What are the causes and symptoms of kidney stones?
5. Discuss the process and significance of dialysis.

Practice Questions

Which vitamin is essential for calcium absorption?

View Question

What is the function of platelets in the human body?

View Question

Which element is the most abundant in the Earth’s crust?

View Question

Which scientist is known for the laws of motion?

View Question

Which is the smallest bone in the human body?

View Question

What is the term for water changing from liquid to gas?

View Question

What is the term for an organism that can make its own food?

View Question

Which organ is responsible for filtering blood in the human body?

View Question

Which process separates light into its component colors?

View Question

Which part of the human eye is responsible for focusing light on the retina?

View Question