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Online Mock Tests & Exam Preparation | Target Exams

School Test Series / NIOS / Class XII / Biology

NIOS Class XII Biology Test Series

31 chapter-wise tests with 248 exam-style questions. Register and verify your email to start.

About the NIOS Class XII Biology Test Series

The NIOS Class XII Biology test series gives you 31 chapter-wise online tests containing 248 exam-style questions. Practise every chapter of NIOS Class XII Biology in the exact board exam pattern with +4 marks for a correct answer and -1 mark for a wrong answer. Each chapter test follows the real NIOS Class XII Biology syllabus, so you can revise a chapter, solve its test, and instantly see your score and weak areas. Regular chapter-wise practice builds the concept clarity, speed and accuracy you need for the final board exam. Attempt the tests in order, review your mistakes and reattempt any chapter to track your improvement before the exam.

  • 31 chapter-wise tests covering the full Biology syllabus
  • 248 NIOS-pattern MCQs with +4 and -1 marking
  • Timed environment with instant results and reattempt option
  • Free to attempt — only a quick registration with email verification is needed
Chapter Test

Origin and Evolution of Life and Introduction to Classification

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

The Kingdom Monera, Protoctista and Fungi

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Kingdom Plantae and Animalia

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Cell Structure and Function

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Tissues and other Level of Organization

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Root System

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Shoot System

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Absorption, Transport and Water Loss in Plants

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Nutrition in Plants - Mineral Nutrition

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Nitrogen Metabolism

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Photosynthesis

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Respiration in Plants

8
Questions
8 min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Nutrition and Digestion

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Respiration and Elimination of Nitrogenous Wastes

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Circulation of Body Fluids

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Locomotion and Movement

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Coordination and Control - The Nervous and Endocrine Systems

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Homeostasis: The Steady State

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Reproduction in Plants

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Growth and Development in Plants

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Reproduction and Population Control

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Principles of Genetics

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Molecular Inheritance and Gene Expression

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Genetics and Society

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Principles of Ecology

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Conservation and Use of Natural Resources

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Pollution

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Nutrition and Health

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Some Common Human Diseases

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Biotechnology

8
Questions
min
Duration
+4 / -1
Marking
Start Test
Chapter Test

Immunobiology: An Introduction

8
Questions
min
Duration
+4 / -1
Marking
Start Test

📚 Study Tips for NIOS Class XII Biology

  • Revise the chapter notes first, then attempt its chapter test.
  • Practise within the time limit to build speed and accuracy.
  • Go through the explanation after every test and note down mistakes.
  • Attempt the chapters in syllabus order and reattempt weak chapters.
  • Solve previous year papers along with these tests for the full exam experience.

❓ Frequently Asked Questions

Yes. All the chapter-wise practice tests on this page are completely free. You only need a free registration with email verification to start a test.

Every chapter has its own practice test with MCQs based on the NIOS pattern. Each question carries +4 marks and every wrong answer deducts 1 mark, within the time limit.

Yes, a free registration is required and email verification is mandatory before you can begin. This lets you save your results and reattempt tests later.

Yes. The tests are organised chapter-wise exactly as per the latest NIOS Class XII Biology syllabus, so you can revise each chapter and practise the exact topics that may be asked.

Yes, you can reattempt any chapter test as many times as you like. Your previous attempts are saved and shown on each test card.

Regular chapter-wise practice builds concept clarity, speed and accuracy, and helps you identify weak areas before the final board exam.