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How to prepare NEET Biology from NCERT, line by line

Biology makes up 90 of the 180 NEET questions, worth 360 marks, and almost all of them trace back to NCERT. This page explains how to read NCERT the way NEET tests it.

Why NCERT decides NEET Biology

NEET Biology questions are written from the Class 11 and 12 NCERT textbooks, often from a single sentence, a table, a diagram label or an example given in a box. A student who knows NCERT thoroughly can answer most of the Biology section, while one who has read three reference books without studying NCERT closely keeps losing easy marks.

So treat NCERT as the NEET Biology syllabus itself, and give it that level of attention from the first day.

Best reference book for NEET Biology?
Best reference book for NEET Biology?

How to read NCERT for NEET

  1. First readingUnderstand
  2. Second readingMark every testable line
  3. Third reading onwardsRevise the marked lines

First reading: understand

On the first reading, aim to understand the process, whether that is how a nephron filters blood, how DNA replicates or how a flower is pollinated. Draw the diagrams yourself and leave memorising for later.

Second reading: mark every testable line

Go through the same chapter with a pencil and underline anything that could become a question: numbers (chromosome counts, percentages), examples (plant and animal names), exceptions, the order of steps, and every label in every figure. Pay particular attention to the tables in NCERT.

Third reading onwards: revise the marked lines

After that, revise only what you have marked, and add to it whenever a test question catches you out. By exam day, each chapter should have been revised at least four or five times.

Statement-based and assertion-reason questions

Recent NEET papers include more questions where several statements are given and you must pick the correct ones, or match columns. These test the exact NCERT wording, and a single changed word can make a statement false. Practise them regularly, and whenever you get one wrong, go back to the NCERT line and read it again.

Give Botany and Zoology equal time

In our experience students enjoy Zoology (human physiology, reproduction) and let Botany (plant anatomy, morphology, plant physiology) slide, although NEET gives both roughly equal weight. Plant morphology and anatomy in particular need careful reading of the NCERT figures.

BotanyZoology
Heart attack vs heart failure
Heart attack vs heart failure

A revision plan

  • DailyRevise one chapter from your marked NCERT and solve 50 to 100 MCQs.
  • WeeklyA chapter test covering everything done that week.
  • MonthlyA full-syllabus Biology test, after which you look up every wrong answer in NCERT.
  • Last two monthsFull NEET mocks on OMR sheets, two or three a week.

Keep up with Physics and Chemistry

Biology can take you a long way, but most students lose their marks in Physics and Chemistry, and that is where the ranks for government medical colleges are decided. Give Physics regular numerical practice from Class 11, and read NCERT Chemistry, especially Inorganic and Organic, with the same care as Biology.

Common questions

Is NCERT enough for NEET Biology?

NCERT, read thoroughly and revised several times, along with MCQ practice based on it, covers the large majority of NEET Biology. Other books are useful for practice questions but cannot replace it.

How many marks in Biology are needed for a government medical college?

It depends on the year, category and state, but students who reach government medical colleges usually score very high in Biology, often above 320 out of 360, along with solid Physics and Chemistry.

When should NEET Biology preparation start?

From the first week of Class 11. Class 11 Biology is a large part of the paper and is easy to forget if it is only studied in Class 12.

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