CBSE Class 12 Board Exam Physiology PYQs 2026: Complete Guide with Important Questions, Exam Pattern & Preparation Strategy
- Divya Shinde
- 2 hours ago
- 4 min read
Preparing for the CBSE Class 12 Board Exam Physiology PYQs 2026 is one of the smartest strategies for scoring high marks in Biology. Every year, a significant number of board questions are directly or indirectly based on previous year questions (PYQs). If you are targeting 90%+ in Biology, especially in the Physiology section, understanding the pattern of PYQs is absolutely essential.
Latest CBSE Class 12 Physiology Exam Pattern 2026
As per the latest board trends, CBSE continues to focus on:
Competency-based questions (around 40-50%)
Case study-based questions
Assertion-Reason questions
Diagram-based questions
MCQs and short answer questions
The Biology theory paper is generally of 70 marks, while 30 marks are for practical exams.
Major Units in Physiology (Approximate Weightage Trend)
Unit | Marks (Approx.) |
Reproduction | 16 |
Genetics & Evolution | 20 |
Biology & Human Welfare | 12 |
Biotechnology | 12 |
Ecology & Environment | 10 |
Within these units, Human Physiology topics form the foundation in understanding Reproduction and related processes. Many short answer, case-based, and diagram-based questions come from physiology-related chapters.
What is Included in Physiology?
In CBSE Class 12, Physiology is mainly covered in:
Human Reproduction
Reproductive Health
Reproductive system diagrams
Hormonal control mechanisms
Gametogenesis
Menstrual cycle
Fertilization and implantation
Although detailed Human Physiology chapters are in Class 11, many Class 12 questions still demand physiological understanding of processes.
That’s why practicing CBSE Class 12 Board Exam Physiology PYQs 2026 becomes crucial.
CBSE Class 12 Board Exam Physiology PYQs 2026: Chapter-Wise Important Questions
1. Human Reproduction – High Weightage Chapter
This chapter consistently carries high weightage in board exams.
Frequently Repeated PYQs:
Draw a labeled diagram of the male reproductive system.
Explain spermatogenesis with diagram.
Describe the phases of the menstrual cycle.
What are the functions of LH and FSH in females?
Differentiate between spermatogenesis and oogenesis.
What is implantation? Where does it occur?
Explain the hormonal control of the menstrual cycle.
Important 3–5 Mark Questions:
Explain the process of fertilization in humans.
Describe parturition and the role of oxytocin.
Write short notes on:
Graafian follicle
Corpus luteum
Zona pellucida
Trend Observation: Every year, at least one 5-mark descriptive question comes from hormonal regulation or menstrual cycle.
2. Reproductive Health – Frequently Asked PYQs
This chapter is scoring and mostly conceptual.
Common Questions:
What are sexually transmitted infections (STIs)? Name any two and their symptoms.
Explain natural and artificial methods of contraception.
What is amniocentesis? Why is it banned?
What is infertility? Mention two assisted reproductive technologies (ART).
Case Study-Based Questions
Recent trends show questions like:
“A couple is unable to conceive even after 5 years of marriage…”Identify the technique that can help and explain it.
Such questions test understanding of IVF, ICSI, ZIFT, GIFT.
3. Hormonal Regulation & Physiology-Based Questions
Many MCQs and Assertion-Reason questions are asked from hormonal control mechanisms.
Repeated MCQ Topics:
Role of GnRH
LH surge
Function of progesterone
Hormonal changes during pregnancy
Feedback mechanism
Example MCQ Trend:
The hormone responsible for ovulation is:A. FSHB. LHC. EstrogenD. Progesterone
Correct answer: LH
Important 1 Mark Questions from Physiology
These are highly repeated in CBSE papers:
Define ovulation.
What is colostrum?
Expand IVF.
Name the hormone secreted by corpus luteum.
Where does fertilization occur in humans?
Tip: Practice definitions word-to-word from NCERT. CBSE strictly follows NCERT lines.
How to Analyze CBSE Class 12 Board Exam Physiology PYQs 2026 Effectively
Instead of just solving questions, follow this strategy:
1. Identify Repeated Concepts
If a topic appears in 3–4 previous years, it is highly important.
2. Focus on Diagrams
At least 5–7 marks in total can come from diagram-based questions.
Important Diagrams:
Male reproductive system
Female reproductive system
Ovum structure
Blastocyst
3. Learn Hormonal Flow Charts
Board examiners appreciate structured answers.
Example: Hypothalamus → GnRH → Pituitary → FSH/LH → Ovary → Estrogen/Progesterone
Expected Important Questions for 2026
Based on trend analysis and board patterns, these topics are highly probable:
Hormonal regulation of menstrual cycle (5 marks)
Assisted reproductive technologies (3–5 marks)
Diagram-based question on reproductive system
Assertion-Reason from contraception
Case study on infertility
If you thoroughly prepare the CBSE Class 12 Board Exam Physiology PYQs 2026, you can confidently attempt at least 15–20 marks from this section.
Smart Preparation Strategy for Physiology 2026
Step 1: Read NCERT Line by Line
Most board answers are directly picked from NCERT.
Step 2: Solve Last 10 Years PYQs
This gives clarity on:
Question repetition
Answer writing style
Marking scheme
Step 3: Practice Answer Structuring
For 5-mark answers:
Start with definition
Explain process in steps
Draw diagram (if required)
Conclude properly
Step 4: Time Management
1 mark → 1–2 lines
3 marks → 4–6 points
5 marks → Detailed explanation + diagram
Common Mistakes Students Make
Ignoring diagrams
Writing extra irrelevant content
Not using scientific terms
Skipping hormonal control explanations
Not practicing case-study questions
Avoid these mistakes to score 95%+ in Biology.
Frequently Asked Questions (FAQ)
Q1: How important are CBSE Class 12 Board Exam Physiology PYQs 2026 for scoring high marks?
Yes, CBSE Class 12 Board Exam Physiology PYQs 2026 are extremely important because many questions are repeated directly or indirectly from previous year papers, especially from Human Reproduction and Reproductive Health chapters.
Q2: How many marks can come from Physiology-related chapters in 2026?
You can expect around 12–16 marks combined from reproduction and physiology-based topics.
Q3: Are diagrams compulsory in long answers?
Yes, if the question demands explanation of structure or process, diagrams significantly improve scoring.
Q4: Is NCERT enough for Physiology preparation?
Yes, NCERT is the primary source. However, solving PYQs and sample papers strengthens preparation.
Conclusion
Preparing for the CBSE Class 12 Board Exam Physiology PYQs 2026 is not just about solving old papers—it is about understanding patterns, mastering NCERT concepts, and practicing structured answer writing.
Physiology-related chapters like Human Reproduction and Reproductive Health are scoring and predictable. If you thoroughly prepare:
Hormonal regulation
Gametogenesis
Menstrual cycle
Assisted reproductive technologies
Diagrams
You can easily secure full marks in this section.
Consistency, smart revision, and solving PYQs will give you a strong advantage in the 2026 board exams.
For authentic updates and official resources, visit:
CBSE Official Website: https://www.cbse.gov.in
CBSE Academic Portal: https://cbseacademic.nic.in
NCERT Official Website: https://ncert.nic.in
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