ICSE Class 10 Biology Answer Key 2026 has been updated. The exam was held on March 13, 2026. The accurate answers are updated here. Our subject matter experts have analyzed the paper and provided accurate answers based on that analysis. You can use these answers to calculate your overall total and award yourself marks appropriately wherever required. There is no negative marking in ICSE Class 10, so it is really easy to calculate your scores. You need to score at least 35% to pass as per the ICSE Passing Marks for Class 10th 2026 . Check out the updated ICSE Class 10 Biology Answer Key 2026 below:
ICSE Class 10 Biology Unofficial Answer Key 2026
Check the unofficial ICSE Class 10 Biology answer key below:
| Questions | Answers |
|---|---|
| Section A Question 1 (i) | (b) R and S |
| Question 1 (ii) | (a) P- close and Q- open |
| Question 1 (iii) | (a) (A) is true and (R) is false |
| Question 1 (iv) | (d) 75 |
| Question 1 (v) | (c) Both (A) and (R) are true, and (R) is the correct explanation of (A) |
| Question 1 (vi) | (b) (A) is false and (R) is true |
| Question 1 (vii) | (a) P, R and S |
| Question 1 (viii) | (b) 50% |
| Question 1 (ix) | (d) Bronchodilation |
| Question 1 (x) | (a) Right Atrium → Right Ventricle → Lungs → Left Atrium → Left Ventricle → Body tissues |
| Question 1 (xi) | (b) Medulla oblongata |
| Question 1 (xii) | (c) Albuminuria |
| Question 1 (xiii) | (c) Improved sanitation and solid waste management |
| Question 1 (xiv) | (d) B and D |
| Question 1 (xv) | (c) Menstrual phase |
| Question 2 (i) a | Thigmotropism |
| Question 2 (i) b | Astigmatism |
| Question 2 (i) c | Biomedical waste |
| Question 2 (i) d | Tubectomy |
| Question 2 (i) e | Speciation |
ICSE Class 10 Biology Paper Pattern 2026
Check out the updated Biology question paper pattern below to help understand the answer key in a much better way:
- The Biology paper will be conducted for 80 marks with a 2-hour duration.
- The question paper is divided into two sections.
- It is compulsory to attempt section A.
- Section A consists of two questions. Question number 1 consists of 15 MCQ-type questions. Question 2 includes 5 sub-questions, each a different type of objective-type question, worth one mark each.
- Section B consists of a total of 6 questions, out of which you are only required to attempt four.
How To Check ICSE Class 10 Result 2026?
After the results are released on the official website of CISCE, you can follow the simple procedure given below to download them successfully:
- Step 1: You will first have to visit the official website of CISCE at cisceboard.org/
- Step 2: The home page will open on your screen, where all the latest updates regarding the exam will be displayed.
- Step 3: Now, click on the option called Results present on the right-hand side of the homepage.
- Step 4: Enter your roll number and captcha code. Click on “Show Result” to check the result.
ICSE Class 10 Passing Marks 2026
You are required to score a minimum 33% marks in each subject of the curriculum to pass in ICSE Class 10th. Your aggregate total must also be above 35% to be declared a pass. If you are unable to meet the minimum passing marks, you are required to sit the improvement exams conducted in June or July. The Biology theory paper will be worth 80 marks, with 20 marks allocated to internal assessment. You are required to achieve 33 marks combined in both papers to pass.
ICSE Class 10 Grading System 2026
For the external exams conducted by ICSE, a total of 9 grades are provided according to the marks obtained by the students. Grade 1 represents the highest achievement. Check out the updated ICSE 10th Grading System 2026 from the table given below:
Grade | Description |
|---|---|
1, 2 | Very Good |
3, 4, 5 | Credit (Pass with Credit) |
6, 7 | Pass |
8,9 | Fail |
Before the official ICSE Class 10 Result 2026 is released, you can use the answer key to get an idea of the number of marks that you can achieve in the exam. Your predicted score may not be very accurate, but it will be somewhat near the official score.
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