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NEET UG 2026 Biology Important Questions with Answers Chapter-wise PDF

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Biology NEET Important Questions Chapterwise PDF - FREE Download

NEET Biology Important Questions with Answers are one of the most valuable resources for any NEET 2026 aspirant. Biology carries the highest weightage in the NEET exam with a total of 90 questions, split equally between Botany and Zoology, making it the most decisive subject when it comes to securing a top score.

Our chapter-wise NEET Biology Important Questions are carefully handpicked by expert teachers based on previous years' question papers, recurring concepts, and the latest NEET 2026 syllabus. Each question is designed to test your understanding of key topics, helping you identify weak areas and strengthen them before exam day.

Regular practice of these questions helps you build concept clarity, improve problem-solving speed, and develop the accuracy needed to attempt 90 Biology questions confidently within the given time limit.

Whether you are just starting your preparation or in the final stages of revision, these NEET Biology Important Questions PDF will keep your study focused, efficient, and fully aligned with what actually appears in the exam.

NEET 2026 Biology Important Questions with Answers PDF: Chapter-wise links

Prepare effectively for the NEET 2026 Biology Subject by using the power of the NEET Biology Important Questions with answers PDF. Download the PDF, integrate it into your study plan, and elevate your Biology preparation.

Students can also access the links to chapter-wise NEET Important Questions Biology from the table below:

Unit-Wise NEET Biology Important Questions FREE PDF Download

S. No	NEET Biology Unit-Wise Important
1	Unit 1 Diversity in Living World Questions
2	Unit 2 Structural Organisation in Animals and Plants Questions
3	Unit 3 Cell Structure and Function Questions
4	Unit 4 Plant Physiology Questions
5	Unit 5 Human Physiology Questions
6	Unit 6 Reproduction Questions
7	Unit 7 Genetics and Evolution Questions
8	Unit 8 Biology and Human Welfare Questions
9	Unit 9 Biotechnology and Its Applications Questions
10	Unit 10 Ecology and Environment Questions

Also Check for:

Most Important Questions for NEET Biology 2026

1. How many among Aedes, Limulus, Pheretima, Ancylostoma, and Antedon possess true coelom, segmentation, and a closed circulatory system?

One
Two
Three
Four

Answer: a) One

Annelids and chordates have true coelom, segmentation, and a closed circulatory system.

2. Read the statements and choose the correct answer.

A) Amphibians have Eyelids, and the Tympanum Represents their Ear.

B) Animals with Paired and Unpaired Fins are in Superclass Pisces.

Answer: a) Both statements A and B are correct

Amphibians have eyelids, and their ear is represented by the tympanum. Animals with paired and unpaired fins belong to superclass Pisces.

3. Select the hormone of the adrenal cortex responsible for hyperglycemia.

Aldosterone
Epinephrine
Cortisol
Sex Corticoids

Answer: c) Cortisol

Cortisol from the adrenal cortex causes hyperglycemia by increasing blood glucose levels.

4. Choose the incorrect match regarding hormone and action.

PRL – Acts on the Mammary Gland
MSH – Acts on Melanocytes
ACTH – Acts on the Adrenal Gland
GnRH – Acts on Anterior Pituitary

Answer: d) GnRH – Acts on gonads

GnRH acts on the anterior pituitary, not gonads.

5. Vestibular Apparatus Contains _________.

Semicircular Canals and Cochlea
Semicircular Canals and Otolith Organ
Otolith Membrane and Cochlea
Middle Ear and Cochlea

Answer: b) Semicircular canals and otolith organ

Vestibular apparatus contains semicircular canals and otolith organ, maintaining body balance and posture.

6. Hexoses are rapidly absorbed into capillaries and drain into _________.

Hepatic Artery
Hepatic Portal Vein
Hepatic Vein
Carotid Vein

Answer: b) Hepatic portal vein

Hexoses are absorbed into capillaries and drain into the hepatic portal vein, leading to the liver.

7. How many structures among Primary bronchi, Trachea, Terminal Bronchiole, Respiratory Bronchiole do not possess incomplete cartilaginous rings?

One
Four
Two
Three

Answer: c) Two

Terminal bronchioles and respiratory bronchioles lack incomplete cartilaginous rings.

8. Filtration slits or slit pores are maintained by _________.

Podocytes in the parietal layer of Bowman’s capsule
Renal pyramids in the medullary region
Cells of glomerular capillary
Podocytes in the visceral layer of Bowman’s capsule

Answer: d) Podocytes in the visceral layer of Bowman’s capsule

Filtration slits are maintained by podocytes in the visceral layer of Bowman’s capsule.

9. During Ventricular Systole, ________.

I. Blood gets Filled in the Atria.

II. AV Valves Remain Closed.

III. 70 ml of Blood is Pumped by Each Ventricle.

Answer: d) I, II, and III are correct

Ventricular systole includes blood filling in the atria, closed AV valves, and pumping 70 ml of blood by each ventricle.

10. Even in the presence of ADH, the maximum reabsorption of water occurs in ________.

DCT
PCT
Loop of Henle
Collecting Duct

Answer: b) PCT

Maximum reabsorption of water occurs in the Proximal Convoluted Tubule (PCT).

How are Biology NEET Important Questions Helpful in NEET Exams?

Preparing for the challenging NEET exams needs a smart plan, and Biology Important Questions With Solutions is a big help. These NEET Important Questions Biology are designed to help you prepare for the NEET exam. They bridge the gap between what you learn in books and how to use it practically. Treat these Biology Important Questions as your essential resource for conquering the NEET Exam.

What's Inside the NEET Biology Important Questions and Answers PDF?

Chapter-wise Segregation: Quickly find and study specific chapters or topics you want to review without having to search through a lot of pages.

Learn from Past Exams: Practice with questions directly from previous NEET papers to understand the exam format, question types, and difficulty level. This will give you an important advantage.

Extra Bonus Included: Enjoy additional benefits such as bonus questions, formula sheets, and valuable study tips from our experienced Gurus. We have added these just for you!

How to Make the Most of the NEET Biology Important Questions and Answers PDF?

Set a regular study schedule and focus on one topic at a time to effectively use the Important Questions for NEET UG 2026 Biology PDF
Understand Biology answers thoroughly rather than guessing answers, and track your progress while revisiting challenging questions.
Collaborate with peers to discuss doubts on Biology Subjects and prioritize building a strong foundation to excel in the NEET 2026 exam.

Download Subject-wise Important Questions for NEET 2026

Students should download the NEET Physics and Chemistry Important Questions PDF along with NEET Important Questions Biology to ensure a comprehensive preparation for the NEET exam. This covers all subjects, enhances their problem-solving skills, and helps them excel in the NEET exam, increasing their chances of success.

Get the links to download subject-wise NEET Important Questions with Solutions PDF - Chemistry and Physics for free from the table below.

S. No	Subject-wise NEET Important Questions 2026
1.	NEET Physics Important Questions
2.	NEET Chemistry Important Questions

Why Choose Vedantu's Biology Question Bank?

Having a special set of questions carefully chosen by experienced NEET climbers who have successfully tackled the NEET exam many times. That's precisely what Vedantu's PDF provides! Our Master Teachers have selected these questions, considering:

Relevance to the NEET 2026 syllabus: No time wasted on outdated or irrelevant topics.

Emphasis on Key Concepts: Sharpen your understanding of crucial Biology principles.

Ability to Boost P-solving Skills: Tackle any question NEET throws your way with confidence.

Enhance NEET Biology Preparation with Additional Study Resources

Beyond NEET Biology Most Important Questions, we also introduce NEET Biology Sample Paper, Mock Tests, Sample Papers, and NEET PYQPs. These resources let you apply what you've studied, testing your skills just like the real deal. It's like practicing for a big match. These tools help you get comfortable with the exam's pattern, time management, and tricky questions.

Combining your NEET Important Questions with all this is the winning strategy. Gain confidence, tackle challenges, and gear up to conquer the NEET 2026. Explore how these resources elevate your preparation and boost your chances of success.

Other Important Links	How It Is Helpful With Biology Important Questions?
NEET Mock Test 2026	Highlight weak areas, letting you focus revision where needed. Gain confidence and enhance problem-solving skills, aligned with Important Questions.
NEET Sample Papers	Helps you gauge your understanding and identify areas requiring revision. Ensures well-rounded readiness for the NEET Biology section.
NEET Botany PYQP	Reflect actual exam trends and test your knowledge aligned with Important Questions. PYQP-based revision targets high-yield topics, enhancing exam preparedness.
NEET Zoology PYQP
NEET Revision Notes	Assist in swiftly recalling vital concepts and strategies, helps precise problem-solving during exams, especially for Important Questions. Essential and frequently tested topics, enabling concentrated preparation and improving your performance in NEET questions with significant weightage.

Master Your Medical Exam with Vedantu's Important Questions for NEET 2026 Biology

The journey to NEET success begins with a simple step – get your FREE Vedantu's NEET Biology Important Questions and Answers PDF 2026. These questions are carefully chosen to match the syllabus, highlight key concepts, and improve problem-solving skills. They're a crucial resource for your exam preparation. Stay organized, focus on the important topics, and practice using these questions. By doing so, you'll boost your understanding, gain confidence, and perform well in the exam. Download Vedantu's Important Questions for NEET 2026 Biology PDF for FREE and be fully prepared for NEET success! Take this step today and watch your Biology scores improve!

FAQs on NEET UG 2026 Biology Important Questions with Answers Chapter-wise PDF

1. What are the chapters with more weightage in the Biology part for NEET?

Animal kingdom, biological classification, the morphology of flowering plants, the principle of inheritance and variation, sexual reproduction in flowering plants, the molecular basis of inheritance are the chapters with high weightage in the NEET Biology section. Students are recommended to study the entire syllabus for basic concepts and then concentrate more on the chapters with more weightage. If the time permits, they can go for the chapters with less weight. But for an initial understanding, they have to read all the chapters. The distribution of marks among these important chapters vary every year. Students can make a detailed list of the weightage pattern and save a hard copy. Weightage for all the other subjects can be accessed from Vedantu.

2. What are the chapters with less weightage in Biology for the NEET?

The living world, mineral nutrition, a structural organization in animals, reproduction in organisms, plant growth and development, respiration in plants, strategies for enhancement in food production, microbes in human welfare, transport in plants, excretory products and elimination, locomotion and movement, biomolecules and ecosystem are the chapters in NEET Biology portion with less weightage. Students are recommended to study the entire syllabus for basic concepts and then concentrate more on the chapters with more weightage. If the time permits, they can go for the chapters with less weight. The distribution of marks among these important chapters vary every year. Students can make a detailed list of the weightage pattern and save a hard copy.

3. What are the important questions and topics covered under the chapter “living world” for the NEET Biology portion?

“Living World” is the first chapter in the NEET Biology portion. It deals with a basic understanding of fundamental concepts of the living world, as this is a basic chapter, proper understanding of this will help understand the complex chapters later. This chapter also teaches concepts related to growth, metabolism, tactile sense, cellular organisation, reproduction, consciousness. To know the important questions from this chapter please download the PDF given in this article. For a general understanding, students can read the entire chapter and for revision purposes, they can read the important questions.

4. What are the important questions and topics covered under the chapter “plant kingdom” for the NEET Biology portion?

“Plant kingdom” is the second chapter in the NEET Biology portion. It discusses plant kingdom-Plantae, their characteristics, classification into thallophyta, Pteridophyta, Bryophyta, gymnosperms and angiosperms. It also teaches what cryptogams are and what phanerogams are. For a comprehensive view of the syllabus and important topics please visit Vedantu. To know the important questions from this chapter please download the PDF given in this article. For a general understanding, students can read the entire chapter and for revision purposes, they can read the important questions.

This will save a lot of time during revision and also help students to concentrate on maximum topics before the Exam.

5. What are the important questions and topics covered under the chapter “animal kingdom” for the NEET Biology portion?

“Animal kingdom” is the third chapter in the NEET Biology portion. It deals with the animal kingdom- characteristics from unicellular to a multicellular organisation, classification based on symmetry, classification of animals, also classification based on common fundamental features. It covers various concepts ranging from the circulatory system to the reproductive system in f=different types of animals. For a comprehensive view of the syllabus and important topics please visit Vedantu. To know the important questions from this chapter please download the PDF given in this article. For a general understanding, students can read the entire chapter and for revision purposes, they can read the important questions.

6. Are there any specific topics I should focus on while practicing NEET Biology questions with answers PDF?

The weightage of different topics in the NEET exam varies. It's crucial to prioritize chapters with a higher weightage. Some commonly emphasized topics from NEET Biology questions with answers PDF:

Zoology: Animal Kingdom, Molecular Basis of Inheritance, Human Reproduction, Sexual Reproduction in Flowering Plants.
Botany: Morphology of Flowering Plants, Principles of Inheritance and Variation, Biomolecules, Photosynthesis in Higher Plants.

7. What are Important Questions for NEET 2025 Biology?

These are questions in Biology that are considered highly likely to appear in the NEET exam. They are compiled based on various factors like:

Frequency: How often a particular topic or question has appeared in previous NEET exams.
Weightage: The relative importance given to different chapters and concepts in the NEET syllabus.
Difficulty level: Matching the difficulty level of the actual NEET exam.

8. What are the most important topics for NEET biology 2026?

NEET Biology, which contributes nearly 50% of the total score, requires a strong focus on high-weightage chapters. Important topics include Genetics and Evolution, Human Physiology, Ecology, Biotechnology, and Cell Biology. Around 45–50% of the questions are based on Class 11 concepts, with a strong emphasis on NCERT.