Biology

The ratio of the Class 11 and Class 12 questions from Biology asked in the NEET 2025 exam is given in the table below. 

Some of the topics with a high weightage in the NEET question paper are given below, along with the number of questions asked. 

Note: The NEET Biology chapter-wise topics mentioned above are based on this year, and the weigtages may change next year. 

In general, the difficulty level of the NEET Biology section is easy to moderate. As compared to the other two sections, Biology has the lowest difficulty level. Moreover, the majority of the candidates score the highest in this section. According to the NEET 2025 analysis by the students and experts, even though the difficulty level of Biology was the easiest, some of the questions were lengthy and tricky in nature, making it more time consuming to answer or solve. 

Human Physiology is the study of various functions and mechanism to sustain human body. It comprises how various cells, molecules, tissues, organs work to sustain life of human body. 

There is no specific data which can explain how many questions are asked from a particular chapter in Human Physiology. Candidates will have to prepare all the chapters to score well in the exam

Around 12-14 questions are asked from Human Physiology which is a part of Zoology in NEET. The weightage is around 45 percent in Zoology segment.

Yes. As NEET is one of the toughest exams, candidates must not leave any stone unturned. They are advised to throughly prepare all the Human Physiology chapters in order to score good marks in the exam

The chapters of Human Physiology for NEET preparation are given below:

• Digestion and Absorption 
• Breathing and Exchange of Gases 
• Body Fluids and Circulation 
• Excretory Products and their Elimination 
• Locomotion and Movement 
• Neural Control and Coordination 
• Chemical Coordination and Integration

Human Physiology is fifth unit in NCERT book of class 11th. It comprises total six topics, covering various aspects of digestion, respiration, circulation, excretion, and locomotion.

BSEH released the HBSE 12th marking scheme 2026 for all subjects on the official website. Students can click on HBSE 12th Biology marking scheme 2026 to download and check the Biology exam pattern.