Free Practice Questions for Tamil Nadu HSE Second Year Biology
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Key Facts: Tamil Nadu HSE Second Year Biology Exam
10:00–1:15
Official March 2026 HSE+2 theory sitting window including reading/verification time (dge.tn.gov.in timetable)
DGE TN HSE+2 March 2026 public examination timetable
35/100
Minimum pass mark per subject under the HSE new pattern, subject to theory/practical floor rules
DGE HSE_E.pdf scheme of examination
3 hours
Approximate theory writing duration after reading and particulars verification in the public exam schedule
DGE TN HSE+2 March 2026 timetable
DGE TN
Administered by the Directorate of Government Examinations, Chennai, for Tamil Nadu State Board Higher Secondary
dge.tn.gov.in
SCERT syllabus
Class 12 textbooks and syllabus prescribed by SCERT / School Education Department (Samacheer Kalvi)
DGE HSE scheme — syllabus prescribed by SCERT/DSE
English MCQ bank
This practice set is an English-language MCQ study adaptation, not the official mixed written paper
OpenExamPrep practice-content policy
₹150/₹200
School exam fee band for groups without/with practical subjects plus certificate/service charges (concessions apply)
DGE HSE_E.pdf school candidate fee table
March 2026
HSE Second Year public theory examinations scheduled 2–26 March 2026 with practicals 9–14 February 2026
DGE TN official timetable PDF 04.11.2025
Free English MCQ practice for Tamil Nadu HSE +2 Biology (DGE). Official paper is mixed written theory on the Samacheer Kalvi Class 12 syllabus — this bank is a study adaptation, not a format simulation.
Sample Tamil Nadu HSE Second Year Biology Practice Questions
Try these sample questions to review concepts for the Tamil Nadu HSE Second Year Biology exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.
1In angiosperms, double fertilization produces a diploid zygote and a typically triploid endosperm because one male gamete fuses with the egg and the other fuses with:
2Vegetative propagation by stem cuttings is commercially important in plants such as rose and sugarcane mainly because it:
3In a typical angiosperm embryo sac (Polygonum type), the number of nuclei present after full development is:
4Self-incompatibility in flowering plants primarily prevents:
5Which plant growth regulator is most directly associated with promoting cell elongation in stems and apical dominance?
6During the light reactions of photosynthesis, the photolysis of water primarily occurs associated with:
7C4 plants minimize photorespiration mainly by:
8In aerobic respiration of plants, the complete oxidation of one glucose molecule yields a theoretical maximum of about how many ATP in many textbook summaries (substrate-level + oxidative phosphorylation estimates)?
9Transpiration pull contributes to ascent of sap primarily because water columns in xylem are held by:
10Which statement correctly distinguishes cyclic from non-cyclic photophosphorylation?
About the Tamil Nadu HSE Second Year Biology Exam
Tamil Nadu HSE Second Year Biology is the Class 12 public examination subject paper in Biology under DGE Tamil Nadu. It assesses SCERT/Samacheer Kalvi Class 12 learning outcomes for this subject. Official assessment is a mixed written theory paper (with practical and internal components where applicable) totaling 100 marks per subject. Combined Biology paper on official timetable (distinct from separate Botany/Zoology sittings). Theory with practical. Use this free English MCQ bank to build concept fluency before the March public exams.
Exam sponsor: Directorate of Government Examinations (DGE), Tamil Nadu. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Assessment
Official Tamil Nadu HSE Second Year (+2) public examination paper in Biology, administered by DGE Tamil Nadu. March 2026 theory window: 02.03.2026–26.03.2026; practical window for +2: 09.02.2026–14.02.2026 (official timetable). Each theory sitting runs 10:00 a.m.–1:15 p.m. including question-paper reading and particulars verification (about 3 hours writing after reading). For subjects with practical: theory is commonly assessed out of 70 marks (minimum 15 in theory) with practical attendance required, internal assessment contributing to the 100-mark subject total. Official assessment is mixed written format (short/long/structured items per the year's blueprint), not pure MCQ. Combined Biology paper on official timetable (distinct from separate Botany/Zoology sittings). Theory with practical. Syllabus and textbooks are prescribed by SCERT / Director of School Education (Samacheer Kalvi Class 12). This site's bank is an English-language multiple-choice study adaptation for concept fluency — not an official translation, format simulation, or substitute for writing, practical, project, or oral evidence.
Time Limit
Official theory sitting 10:00 a.m.–1:15 p.m. (about 3 hours writing after reading/verification) per March 2026 DGE timetable
Passing Score
Minimum 35 out of 100 per subject overall under the new 600-mark HSE pattern (HSE_E.pdf), with additional floors: theory minimum 15/70 and must appear for practical for practical-bearing subjects. Confirm the current DGE result rules for your candidate category.
Exam / Certification Fees
School candidates: DGE HSE scheme lists examination fee ₹200 for groups with practical subjects, plus Mark Certificate ₹20 and Service Charges ₹5 (Tamil-medium candidates and notified concession categories are often fee-exempt). Private (H) candidates: per-subject fees as notified (scheme text commonly cites subject + registration/mark/service components). Confirm current-session circulars on dge.tn.gov.in — fee tables can be updated by notification.
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.
Botany Units
Plant physiology, reproduction, genetics, biotechnology, and ecology units as in Bio-Botany stream content.
Zoology Units
Human physiology, reproduction, genetics, evolution, health, and ecology units as in Bio-Zoology stream content.
Preparing for the Tamil Nadu HSE Second Year Biology Exam
What You Need to Know
- Passing score: Minimum 35 out of 100 per subject overall under the new 600-mark HSE pattern (HSE_E.pdf), with additional floors: theory minimum 15/70 and must appear for practical for practical-bearing subjects. Confirm the current DGE result rules for your candidate category.
- Assessment: Official Tamil Nadu HSE Second Year (+2) public examination paper in Biology, administered by DGE Tamil Nadu. March 2026 theory window: 02.03.2026–26.03.2026; practical window for +2: 09.02.2026–14.02.2026 (official timetable). Each theory sitting runs 10:00 a.m.–1:15 p.m. including question-paper reading and particulars verification (about 3 hours writing after reading). For subjects with practical: theory is commonly assessed out of 70 marks (minimum 15 in theory) with practical attendance required, internal assessment contributing to the 100-mark subject total. Official assessment is mixed written format (short/long/structured items per the year's blueprint), not pure MCQ. Combined Biology paper on official timetable (distinct from separate Botany/Zoology sittings). Theory with practical. Syllabus and textbooks are prescribed by SCERT / Director of School Education (Samacheer Kalvi Class 12). This site's bank is an English-language multiple-choice study adaptation for concept fluency — not an official translation, format simulation, or substitute for writing, practical, project, or oral evidence.
- Time limit: Official theory sitting 10:00 a.m.–1:15 p.m. (about 3 hours writing after reading/verification) per March 2026 DGE timetable
- Exam / certification fees: School candidates: DGE HSE scheme lists examination fee ₹200 for groups with practical subjects, plus Mark Certificate ₹20 and Service Charges ₹5 (Tamil-medium candidates and notified concession categories are often fee-exempt). Private (H) candidates: per-subject fees as notified (scheme text commonly cites subject + registration/mark/service components). Confirm current-session circulars on dge.tn.gov.in — fee tables can be updated by notification. 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
Tamil Nadu HSE Second Year Biology: Suggested Study Strategy
Frequently Asked Questions
What is the Tamil Nadu HSE Second Year Biology exam?
It is the official Class 12 (Higher Secondary Second Year / +2) public examination paper in Biology, conducted by the Directorate of Government Examinations (DGE), Tamil Nadu, under the State Board / Samacheer Kalvi syllabus.
How long is the official theory paper?
The March 2026 timetable schedules each theory sitting from 10:00 a.m. to 1:15 p.m., including question-paper reading and candidate particulars verification before the main writing period.
What is the passing score?
Minimum 35 out of 100 per subject overall under the new 600-mark HSE pattern (HSE_E.pdf), with additional floors: theory minimum 15/70 and must appear for practical for practical-bearing subjects. Confirm the current DGE result rules for your candidate category.
Is this practice bank the same format as the official paper?
No. Official papers use mixed written formats (and practicals where applicable). These 100 questions are an English-language multiple-choice study adaptation for knowledge and judgment practice only.
Where can I find the official timetable and scheme?
Download the public examination timetable and HSE scheme documents from the Directorate of Government Examinations website (dge.tn.gov.in), including the March 2026 HSE+2 timetable PDF.