Topic Details (Notes format)

Respiratory System in Humans

Subject: General Science

Book: NCERT Biology Class 12

Study of gas exchange and respiration.
- **Mechanism of Breathing**:
- Inspiration and expiration.
- **Oxygen and Carbon Dioxide Transport**:
- Hemoglobin and plasma transport.
- **Respiratory Disorders**:
- Asthma, emphysema, lung cancer.

**Possible Exam Questions:**
1. Explain the mechanism of breathing in humans.
2. How is oxygen transported in the blood?
3. Describe the role of hemoglobin in respiration.
4. What are the causes and symptoms of asthma?
5. Discuss the impact of smoking on lung function.

Practice Questions

Which vitamin is essential for calcium absorption?

View Question

What is the unit of electrical resistance?

View Question

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

View Question

Which acid is found in the human stomach?

View Question

What is the chemical symbol for the element iron?

View Question

Which organ in the human body produces bile?

View Question

What is the main function of the ozone layer?

View Question

What is the smallest unit of life?

View Question

Which organ regulates blood sugar levels in the human body?

View Question

Which organelle is known as the "powerhouse of the cell"?

View Question