Introduction
The NDA/CDS 1 2026 examination, conducted by the Union Public Service Commission (UPSC), is a gateway for candidates aspiring to join the Indian Armed Forces – Army, Navy, and Air Force. The General Science section of the exam plays a vital role in testing a candidate’s understanding of fundamental scientific concepts, including Biology, Physics, and Chemistry.
In this class, we focus on Biology – particularly Human Physiology, through Multiple Choice Questions (MCQs) that strengthen conceptual clarity and enhance exam-oriented problem-solving skills.
Class Objectives
- To understand key concepts of Human Physiology relevant for NDA/CDS 1 2026.
- To develop speed and accuracy in solving Biology-based MCQs.
- To link theoretical knowledge with application-based questions.
Subtopics Covered
- Introduction to Human Physiology
- Definition, importance, and scope in human biology.
- Levels of organization in the human body.
- Digestive System
- Structure and function of the alimentary canal.
- Enzymes and digestive juices.
- Absorption and assimilation of food.
- Respiratory System
- Mechanism of breathing and gas exchange.
- Transport of oxygen and carbon dioxide.
- Regulation of respiration.
- Circulatory System
- Composition and functions of blood.
- Structure and working of the human heart.
- Blood pressure and double circulation.
- Excretory System
- Structure of nephron and formation of urine.
- Role of kidneys in osmoregulation.
- Nervous and Endocrine Systems
- Structure and function of neurons.
- Reflex arc and coordination.
- Hormones and their functions.
- Reproductive System (Brief Overview)
- Male and female reproductive organs.
- Fertilization and development.
Practice Section
- Topic-wise MCQs with explanation.
- Previous Year Questions (PYQs) analysis from NDA/CDS papers.
- Exam Strategy Tips – how to eliminate wrong options, manage time, and prioritize topics.
Conclusion
This session marks the beginning of a systematic preparation journey for NDA/CDS 1 2026 Biology. A clear understanding of Human Physiology not only builds a strong base for upcoming topics but also boosts confidence for tackling conceptual and application-based MCQs. Consistent practice and revision will be the key to success.
