Free Practice Questions for CHSE Odisha Elective Biology
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Key Facts: CHSE Odisha Elective Biology Exam
200 marks
Elective Biology total across Year 1 (100) + Year 2 (100)
CHSE Odisha Science Courses of Studies / BFC PCMB
70+30
Theory + practical split each year (Botany/Zoology theory 35+35; practical 15+15)
CHSE Odisha Biology (+2) course structure
10 units
Five Class XI + five Class XII units from diversity through ecology
CHSE Odisha rationalised Biology syllabus
1.5 h × 2
Typical Botany and Zoology theory section times at 35 marks each
CHSE Odisha Biology theory course structure
In AHSE fee
Theory fee via session exam structure; practical fees per Botany/Zoology paper as notified
CHSE Odisha AHSE fee notifications via colleges
CHSE Odisha Elective Biology is a +2 Science elective (200 marks: 100+100 with 70 theory + 30 practical each year, Botany & Zoology split). Official papers mix objective and constructed-response items plus practicals—not a pure MCQ board paper. This free 2026 bank is an English MCQ study adaptation covering topics from official units.
Sample CHSE Odisha Elective Biology Practice Questions
Try these sample questions to review concepts for the CHSE Odisha Elective Biology exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1In the CHSE +2 Biology living-world framework, which feature is generally treated as the defining property of living organisms that is most difficult for non-living systems to fully mimic?
2According to the binomial nomenclature system used in biological classification, which statement is correct?
3Which kingdom in the five-kingdom classification of Whittaker is characterised by eukaryotic, multicellular organisms that are typically autotrophic and have cell walls of cellulose?
4Cyanobacteria (blue-green algae) are placed under Monera primarily because they:
5In the plant kingdom classification used at +2 level, bryophytes are often called the amphibians of the plant kingdom because they:
6Which statement correctly distinguishes gymnosperms from angiosperms?
7In animal classification, coelenterates (Cnidaria) are characterised by:
8Which phylum includes animals that are triploblastic, bilaterally symmetrical, and have a true coelom with metameric segmentation, such as earthworms?
9Arthropods are the most successful animal group partly because of which combination of traits?
10In chordates, which structure is present at least in the embryonic stage of all members of the phylum?
About the CHSE Odisha Elective Biology Exam
Odisha CHSE Higher Secondary Elective Biology follows the Science (PCMB) Courses of Studies and rationalised BFC Biology structure aligned with national (NCERT-style) Class XI–XII Biology. Year 1 emphasises diversity of living organisms, structural organisation in plants and animals, cell structure and function, plant physiology, and human physiology. Year 2 emphasises reproduction, genetics and evolution, biology and human welfare, biotechnology and its applications, and ecology and environment (with Odisha biodiversity examples in the official outline). Theory is assessed as Botany and Zoology sections (35+35) with a 30-mark practical component each year. Electives total 200 marks across the two years; the Council Year-2 paper counts toward the pass certificate.
Exam sponsor: Council of Higher Secondary Education, Odisha (CHSE Odisha). The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Assessment
CHSE Odisha Higher Secondary Elective Biology carries 200 marks (100 Year-1 college level + 100 Year-2 Council AHSE). Each year: Theory 70 marks (Botany 35 + Zoology 35, typically 1.5 hours each) and Practical 30 marks (15 Botany + 15 Zoology). Class XI units: (I) Diversity of Living Organisms, (II) Structural Organisation, (III) Cell Structure and Function, (IV) Plant Physiology, (V) Human Physiology. Class XII units: (VI) Reproduction, (VII) Genetics and Evolution, (VIII) Biology and Human Welfare, (IX) Biotechnology and its Applications, (X) Ecology and Environment. Official XII theory template commonly includes MCQs, fill-ins, short notes, differentiate items, and long answers. Practicals include major experiment, spotting, record, and viva. This free bank is an English MCQ study adaptation—not a full long-answer or practical simulation.
Time Limit
1.5 hours per Botany/Zoology theory section (confirm current circular); practical about 2 hours per section as notified
Passing Score
~30% minimum in theory (confirm current AHSE circular); practical pass rules as notified
Exam / Certification Fees
Included in the CHSE Odisha AHSE examination fee for the session (collected through the affiliated college/H.S. school), plus practical examination fees for BIO-I (Botany) and BIO-II (Zoology) as notified.
Exam sponsor websiteFees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Our practice resources: topics covered
We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.
Diversity of Living Organisms
Living world, biological classification, plant and animal kingdoms.
Structural Organisation
Morphology and anatomy of flowering plants; animal tissues.
Cell Structure and Function
Cell theory, organelles, biomolecules, cell cycle and division.
Plant Physiology
Transport, mineral nutrition, photosynthesis, respiration, growth.
Human Physiology
Digestion, breathing, body fluids, excretion, neural/endocrine, locomotion.
Reproduction
Flowering plant reproduction; human reproduction and reproductive health.
Genetics and Evolution
Mendelian inheritance, molecular basis of inheritance, evolution.
Biology and Human Welfare
Health and disease; microbes in human welfare.
Biotechnology
Principles and processes; applications in health and agriculture.
Ecology and Environment
Organisms and populations, ecosystems, biodiversity conservation.
Preparing for the CHSE Odisha Elective Biology Exam
What You Need to Know
- Passing score: ~30% minimum in theory (confirm current AHSE circular); practical pass rules as notified
- Assessment: CHSE Odisha Higher Secondary Elective Biology carries 200 marks (100 Year-1 college level + 100 Year-2 Council AHSE). Each year: Theory 70 marks (Botany 35 + Zoology 35, typically 1.5 hours each) and Practical 30 marks (15 Botany + 15 Zoology). Class XI units: (I) Diversity of Living Organisms, (II) Structural Organisation, (III) Cell Structure and Function, (IV) Plant Physiology, (V) Human Physiology. Class XII units: (VI) Reproduction, (VII) Genetics and Evolution, (VIII) Biology and Human Welfare, (IX) Biotechnology and its Applications, (X) Ecology and Environment. Official XII theory template commonly includes MCQs, fill-ins, short notes, differentiate items, and long answers. Practicals include major experiment, spotting, record, and viva. This free bank is an English MCQ study adaptation—not a full long-answer or practical simulation.
- Time limit: 1.5 hours per Botany/Zoology theory section (confirm current circular); practical about 2 hours per section as notified
- Exam / certification fees: Included in the CHSE Odisha AHSE examination fee for the session (collected through the affiliated college/H.S. school), plus practical examination fees for BIO-I (Botany) and BIO-II (Zoology) as notified. Official sources
Using Our Practice Resources
- Work through all 100 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
CHSE Odisha Elective Biology: Suggested Study Strategy
Frequently Asked Questions
How is CHSE Odisha Higher Secondary Elective Biology examined?
Elective Biology carries 200 marks (100 Year-1 college + 100 Year-2 Council AHSE). Each year typically includes Theory 70 marks split as Botany 35 and Zoology 35 (about 1.5 hours each) and Practical 30 marks (15 Botany + 15 Zoology). Official theory papers mix MCQs, fill-ins, short notes, differentiate items, and long answers; practicals include experiment, spotting, record, and viva.
What are the Class XI and XII Biology units?
Class XI: (I) Diversity of Living Organisms, (II) Structural Organisation in Plants and Animals, (III) Cell: Structure and Function, (IV) Plant Physiology, (V) Human Physiology. Class XII: (VI) Reproduction, (VII) Genetics and Evolution, (VIII) Biology and Human Welfare, (IX) Biotechnology and its Applications, (X) Ecology and Environment.
Is this practice bank the same format as the official CHSE paper?
No. Official papers combine objective items with short and long constructed-response answers plus practical assessment. This bank is an English-language multiple-choice study adaptation for concept revision—not an official blueprint replica or practical simulation.
Does Elective Biology include a practical exam?
Yes. Under CHSE Science Biology, each year commonly carries 30 practical marks (15 Botany + 15 Zoology) covering major experiments, spotting/identification, record, and viva, alongside 70 theory marks.
What is the pass mark?
CHSE Odisha AHSE practice commonly requires about 30% as the minimum pass floor in theory; practical components may have separate pass rules. Confirm the current AHSE notification on chseodisha.nic.in.
What does the exam cost?
Examination charges are included in the CHSE Odisha AHSE fee structure notified for the session and collected through the affiliated college/H.S. school, plus practical examination fees for Botany and Zoology papers as notified.