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ICSE 2026 Biology Answer Key (OUT): Detailed Question Paper Analysis Available

Students appearing for the Class 10 board exam for Biology can check ICSE 2026 Biology answer key LIVE updates. We have covered student reviews and a detailed paper analysis here!

Sudeshna Chakrabarti

Updated on - Mar 14, 2026 | 9:39:00 AM

ICSE 2026 Biology Answer Key LIVE Updates(Image Credit: Freepik)

ICSE 2026 Biology Answer Key: The Council for the Indian School Certificate Examinations conducted the Class 10 Biology exam today, March 13, 2026, between 11 AM and 1 PM. With the conclusion of the exam, we gathered reviews from students and teachers. Per reviews, the Biology paper has been considered moderate. The MCQs were easy and doable; however, the short-answer diagram-based questions were a bit challenging. Despite a few challenging questions, the overall questions were manageable. Our GMU expert has analysed the questions and shared the correct responses to help students get an idea of their correct and incorrect attempts. Catch up with ICSE 2026 Biology answer key LIVE updates to discover paper analysis and student reviews!

ICSE 2026 Biology Answer Key Unofficial Available

Our GMU subject-matter experts will analyse the question paper and provide correct responses for the questions asked in the exam. We will update ICSE 2026 Biology answer key here:

Questions	Answers
Q1. i) Four friends, P, Q, R, and S, were discussing genetic disorders. The examples they quoted were as follows: P. Colour Blindness and Malaria Q. Albinism and Cholera R. Haemophilia and Colour Blindness S. Haemophilia and Albinism	b) R and S
ii) During the ventricular systole, the atriventricular valves(P)________and the semilunar valves(Q)	a) P Close Q Open
iii) Assertion(A): A thick cuticle reduces transpiration by acting as a barrier Reason(R): Desert plants have large, thin leaves for transpiration	a) A is true but R is false
iv) A sequence of DNA has 300 nitrogenous base pairs, of which 75 are guanine. What is the number of Thymine in this sequence?	d) 75
v) Assertion(A): Abscisic acid promotes stomatal closure during a drought Reason(R): Abscisic acid helps the plant to conserve water during stress	c) Both A and r are true and R is the correct explanation of A
vi) Asserion(A): Leukoderma is the biological term for blood cancer Reason(R): An abnormal increase in the number of WBC's causes blood cancer	b) A is false and R is true
vii) A health organisation wants to educate rural audience about population control using visually engaging methods. Which of these would be effective? P. Posters Q. Loudspeakers R. Film Shows S. Street Plays	a) P, R and S
viii) A family has a history of colour blindness. During genetic testing, it was found that the mother is a carrier of colour blindness and the father has normal vision. What is the probability of their sons being colour blind?	b) 50%
ix) Bharat woke up late in the morning and missed the school bus. The situation stimulated the nerves of the sympathetic system, which resulted in:	d) Bronchodilation
x) Which is the correct sequence of blood flow in the pulmonary and systemic circulation	a) Right Atrium→Right Ventricle→Lungs→Left Atrum→Left Ventircle
xi) Karan was standing on a high stool and cleaning the ceiling fan. He suddenly lost balance and sustained a head injury. An examination reveals that his pupils have lost the capacity to constrict in bright light. Which structure has been damaged?	b) Medulla oblongata
xii) A person suffering from kidney failure has proteins in teh urine. What is this condition called?	c) Albuminuria
xiii) What does Swachh Bharat Abhiyan aim to achieve in India?	c) Improve sanitation and solid waste management
xiv) Varun's mother added plenty of salt to the mango pickle she made. This is to:	d) B and D
xv) During which phase of the menstrual cycle does the endometrium shed?	c) Menstrual phase
Q.2) Give a biological term for the following a) The tropic movement wherein tendrils of a pea plant twine around a support	Thigmotropism
b) A defect in our eye in which some parts of the object are in focus while the other parts are blurred	Astigmatism
c) The type of waste generated in hospitals and pathological labs	biomedical waste
d) The surgical technique for females that can be used to prevent pregnancy	Tubectomy
e) The evolutionary process by which new species arise from the existing ones.	Speciation
ii) Given below is a diagram of a human sperm. Read the information below the diagram and fill in the blanks	a) Acrosome; b) Hyaluronidase; c) 23; d) Mitochondria e) Semen
iii) Choose the odd one out from the following terms and name the category to which the others belong.	a) Oxytocin; b) Vasopressin; c) Nucleic acid; d) Cervix; e) Oviduct

Highlights on ICSE 2026 Biology Exam Pattern

One of the strategies toppers use is chalking out a time management plan based on the paper pattern and marking criteria. Students can go through ICSE 2026 Biology exam pattern below:

Sections	Type of Question	Total Marks
A	Compulsory Short Answer	40 marks
B	Long Answer	40 marks

ICSE Biology Exam 2026: Student Reviews and Paper Difficulty Level

Students and parents can get a complete idea of the question paper, student reactions, and difficulty level from our detailed analysis. Check below ICSE Biology paper analysis and reviews:

Particulars	Details
Overall Difficulty Level	Moderate to Easy
Student Reviews	Anita from the Delhi centre was happy with the questions. She said the questions were pretty easy. Amit found the MCQs were very easy; only a few required concept understanding
Difficult Section	Long Answer Questions
Easy Section	Objective Type Questions

We advice studnets keep a track of our LIVE updates on ICSE 2026 Biology answer key and paper analysis to stay updated.

Live Updates

March 13, 2026 | 04:30 PM IST

ICSE 2026 Biology Unoffcial Keys Released

The GMU subject expert has provided answers for multiple-choice and objective questions asked in the Biology paper. Students can compare their responses with the keys and check the number of correct and incorrect attempts.

March 13, 2026 | 04:14 PM IST

Detailed Paper Analysis of ICSE 2026 Biology Exam

As per student reviews and expert responses, it can be said that the Biology paper was moderate. If we analyse the sectional difficulty level, then Section A has been considered comprising direct and easy questions. On the contrary, Section B was a bit challenging as it focussed more on application absed descriptive questions.

March 13, 2026 | 01:20 PM IST

When will ICSE 2026 Biology unofficial keys will be out?

ICSE 2026 Biology answer keys will be prepared by our subject experts. Students can expect the keys to be added to our LIVE page from 1:30 PM onwards. Students can compare their responses with our keys and analyse their performance.

March 13, 2026 | 01:15 PM IST

Students Leaving Exam Hall

As per LIVE updates from various exam centres, our correspondents reported that the students are leaving the exam hall. As soon as they interact with our corresponent we wil provide responses and reviews on the Biology paper.

March 13, 2026 | 01:00 PM IST

Exam Concludes!

ICSE 2026 Biology exam concludes at 1 PM across all designated exam centres. Per updates, invigilators have begun collecting the answer scripts from the students. Students will be allowed outside the exam hall soon.

March 13, 2026 | 12:30 PM IST

Last 30 minutes left

As only 30 minutes are left for the ICSE Biology exam 2026 to conclude, students should go back to the questions they left unattempted and complete them. Students should take any supplementary sheets and tie them properly.

March 13, 2026 | 12:00 PM IST

No Report of Paper Leak or Cheating Incidents

It's been 1 hour since the exam started. The exam is being conducted smoothly across all test centers with no incidents of cheating or paper leaks.

March 13, 2026 | 11:30 AM IST

ICSE Biology Paper Followed Usual Pattern

As per recent updates received from some exam centres, no changes have been made to the Biology exam pattern. Students have to answer a mix of objective, short, and long-answer type questions.

March 13, 2026 | 11:00 AM IST

Exam Begins!

ICSE 2026 Biology exam begins today, March 13, 2026, at 11 AM across designated test centres. Students can start writing their paper.

March 13, 2026 | 10:45 AM IST

Question Paper Distribution Commenced

As per the latest updates, exam centre gates are now closed, and invigilators have begun distributing question papers to the students.

March 13, 2026 | 10:30 AM IST

30 Minutes Left

Anxiety and tension grip the examinees as only 30 minutes are left for ICSE 2026 Biology exam to commence. Students are advised to check their seat numbers.

March 13, 2026 | 10:15 AM IST

Exam Centre Gate Opens

Across all ICSE exam centres, the gate has been opened. The security official will verify the student's identity by verifying their admit card before offering entry inside.

March 13, 2026 | 10:00 AM IST

Teacher Reviews on Expected Difficulty Level

Our correspondents interacted with a few Biology teachers present at the exam centre regarding the expected paper difficulty level. Most of them commented that the difficulty level is expected to be moderate; however, due to diagram-based questions, students need to plan an effective time management plan.

March 13, 2026 | 09:45 AM IST

Updates from Exam Centres

Our GMU correspondent has reached various ICSE exam centres. As reported by them, students have arrived at the exam centre with their parents. The gate will likely be open soon.

March 13, 2026 | 09:30 AM IST

Total Reading Time Provided for Biology Exam

As per ICSE guidelines, students will be given question papers 15 minutes early. Students must utilize these 15 minutes to carefully read the question and plan their strategy to approach the questions.

March 13, 2026 | 09:15 AM IST

Traffic Across Major Cities

ICSE board exam test centers are spread across various cities in India. If we consider present traffic conditions in cities such as Mumbai, Delhi, and Kolkata, some roads seem busy, and the traffic remains usual. However, there may be congestion at peak hours.

March 13, 2026 | 09:00 AM IST

Tricks to Manage Time

Time management plays a crucial role in biology exams as students have to write long answers along with neat and labelled diagrams, which often leads to a time crunch. So, students must plan their section-wise time accordingly.

March 13, 2026 | 08:45 AM IST

Latest Updates from Exam Centres

Some of our GMU correspondents have reported from various test centres. Most test centers are gearing up for the final checking of all CCTVs and security checks to ensure that no cheating or paper leak incidents happen.

March 13, 2026 | 08:30 AM IST

Dos and Don'ts for Exam

Students must adhere to these rules at the exam centre:

Any electronic device should be kept outside the exam centre
Students must occupy only the seat allotted to them in the exam hall
It is advised to cooperate with the security official during verification

March 13, 2026 | 08:00 AM IST

50:50 Weigahge in MH SSC Exam 2026 Biology

According to the Biology paper pattern, equal weightage is carried by two sections. Both Section A and B will contain 40 mark question.

March 13, 2026 | 07:45 AM IST

Reminder to Note Down Roll Number

We suggest students write down their roll number on a piece of paper, as it will be required when checking the seat number at the exam centre.

March 13, 2026 | 07:15 AM IST

Important Biology Chapters to Revise

Students should revise high-weightage chapters, including Human Digestive System, Reproductive System, Plant Physiology, and Pollution.

March 13, 2026 | 07:00 AM IST

Reporting Time for ICSE 2026 Biology Paper

According to the exam schedule, ICSE 2026 Biology paper will eb conducted today, March 13, 2026, from 11 AM to 1 PM across various exam centres. Students must report by 10 AM and complete the verification process at the exam centre. The gates will close by 10:40 AM.

March 13, 2026 | 06:50 AM IST

Things to Carry in Your Bag for the Exam

Here is the list of items that students should not forget to put inside tehri bags:

Admit card
School ID card
Stationary items
Transparent water bottle

March 13, 2026 | 06:30 AM IST

Diagrams to Practice

In Biology, diagrams can fetch you a better score. Students are advised to practice diagrams for plant physiology, genetics basics, and human anatomy. They must label them properly.

March 13, 2026 | 06:15 AM IST

Practice Questions to Ace Shot Answer Questions

Differentiate between Transpiration and Evaporation. Write at least three points.
Why is the root hair described as a semipermeable membrane?
Write down four functions of the placenta.
Explain the term ‘Photolysis’ in the context of photosynthesis.

March 13, 2026 | 06:00 AM IST

Morning Time! Gear up With Revisions

Here are some important terms students must revise:

Allele: It is an alternative form of a gene that occupies the same locus on homologous chromosomes
Osmosis: It refers to a phenomenon where water molecules move from a region of higher concentration to a lower concentration through a semipermeable membrane.
Double Circulation: It is a type of circulation where blood passes through the heart twice for one complete circuit of the body.

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