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Free Practice Questions for Tamil Nadu HSE First Year Zoology

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Key Facts: Tamil Nadu HSE First Year Zoology Exam

10:00–1:15

Official March 2026 HSE theory sitting window including reading/verification time (dge.tn.gov.in timetable)

DGE TN HSE 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 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 11 Bio-Zoology 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

Class 11

HSE First Year (+1) Zoology covers animal diversity, structural organisation, cell/biomolecules, and physiology foundations

Samacheer Kalvi Class 11 Bio-Zoology textbooks

Free English MCQ practice for Tamil Nadu HSE +1 Zoology (DGE). Official paper is mixed written theory on the Samacheer Kalvi Class 11 Bio-Zoology syllabus — this bank is a study adaptation, not a format simulation.

Sample Tamil Nadu HSE First Year Zoology Practice Questions

Try these sample questions to review concepts for the Tamil Nadu HSE First Year Zoology exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1The scientific naming system of binomial nomenclature was popularised by:
A.Charles Darwin
B.Gregor Mendel
C.Carolus Linnaeus
D.Aristotle
Explanation: Carolus Linnaeus established binomial nomenclature: genus name + specific epithet. Darwin proposed natural selection; Mendel worked on inheritance; Aristotle classified animals descriptively without modern binomials.
2In the taxonomic hierarchy, which rank is immediately above genus?
A.Species
B.Family
C.Order
D.Class
Explanation: The standard ascending order is species → genus → family → order → class → phylum → kingdom. Family is the rank immediately above genus.
3Which is the correct sequence of taxonomic categories from lowest to highest?
A.Species → Genus → Family → Order
B.Genus → Species → Family → Order
C.Species → Family → Genus → Order
D.Family → Species → Genus → Order
Explanation: Species is the basic unit; related species form a genus; related genera form a family; related families form an order.
4Animals that lack true tissues and have a cellular level of organisation belong mainly to:
A.Porifera
B.Cnidaria
C.Platyhelminthes
D.Annelida
Explanation: Poriferans (sponges) show a cellular level of organisation without true tissues or organs. Cnidarians have tissue level; flatworms and annelids are more complex with organ systems.
5Choanocytes (collar cells) that create water currents are characteristic of:
A.Cnidaria
B.Ctenophora
C.Porifera
D.Echinodermata
Explanation: Choanocytes line the spongocoel/canals of sponges and beat flagella to drive water flow for filter feeding. They are a hallmark of Porifera.
6Cnidocytes containing nematocysts are diagnostic of which phylum?
A.Cnidaria
B.Porifera
C.Platyhelminthes
D.Mollusca
Explanation: Cnidarians possess cnidocytes with nematocysts used for defence and prey capture (e.g., Hydra, jellyfish, corals).
7Animals that are diploblastic and radially symmetrical typically include:
A.Cnidarians such as Hydra
B.Earthworms
C.Insects
D.Frogs
Explanation: Cnidarians (and ctenophores) are diploblastic with radial symmetry. Earthworms, insects, and frogs are triploblastic with bilateral symmetry.
8The body cavity completely lined by mesoderm is called a:
A.Pseudocoelom
B.True coelom (eucoelom)
C.Haemocoel
D.Blastocoel
Explanation: A true coelom is a body cavity lined entirely by mesoderm (as in annelids, molluscs, echinoderms, chordates). A pseudocoelom is incompletely lined; haemocoel is blood-filled; blastocoel is an embryonic cavity.
9Nematodes (roundworms) are best described as:
A.Acoelomate and diploblastic
B.Pseudocoelomate and triploblastic
C.Eucoelomate and diploblastic
D.Acoelomate and triploblastic only
Explanation: Aschelminthes/Nematoda are triploblastic, bilaterally symmetrical, and pseudocoelomate with a complete digestive tract.
10Metameric segmentation (true segments) is a hallmark of:
A.Porifera
B.Cnidaria
C.Annelida
D.Nematoda
Explanation: Annelids show metameric segmentation with repeated body segments (metameres). Sponges and cnidarians lack this; nematodes are unsegmented.

About the Tamil Nadu HSE First Year Zoology Exam

Tamil Nadu HSE First Year Zoology is the Class 11 public examination subject paper in Zoology (Bio-Zoology) under DGE Tamil Nadu. It assesses SCERT/Samacheer Kalvi Class 11 learning outcomes for animal diversity, structural organisation, cell/biomolecules, and animal physiology foundations. Official assessment is a mixed written theory paper (with practical and internal components where applicable) totaling 100 marks per subject. Theory with practical; Bio-Zoology stream paper on official timetable. Use this free English MCQ bank to build concept fluency before 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 First Year (+1) public examination paper in Zoology, administered by DGE Tamil Nadu. The March 2026 HSE+1 public theory window is for arrear candidates (typically batches 2018–2025 as notified); 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. Theory with practical; Bio-Zoology stream paper on official timetable. QPs commonly in Tamil/English (and additional media for major science subjects per DGE: ta, en, te, kn, ml, ur). Syllabus and textbooks are prescribed by SCERT / Director of School Education (Samacheer Kalvi Class 11 Bio-Zoology). 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) / arrear candidates: per-subject fees as notified. Confirm current-session circulars on dge.tn.gov.in — fee tables can be updated by notification.

Exam sponsor website

Fees, 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.

25%

Animal Diversity

Living world, taxonomy, and Kingdom Animalia from Porifera through Chordata as in Samacheer Kalvi Class 11 Bio-Zoology.

20%

Structural Organisation

Animal tissues and organ-system organisation in representative animals (earthworm, cockroach, frog) at Class 11 depth.

25%

Cell and Biomolecules

Cell structure and organelles, biomolecules, enzymes, membrane transport, cell cycle, and meiosis foundations (zoology portion).

30%

Animal Physiology Foundations

Digestion, respiration, circulation, excretion, locomotion, neural control, and chemical coordination — Class 11 foundations, not Class 12 human reproduction/genetics depth.

Preparing for the Tamil Nadu HSE First Year Zoology 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 First Year (+1) public examination paper in Zoology, administered by DGE Tamil Nadu. The March 2026 HSE+1 public theory window is for arrear candidates (typically batches 2018–2025 as notified); 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. Theory with practical; Bio-Zoology stream paper on official timetable. QPs commonly in Tamil/English (and additional media for major science subjects per DGE: ta, en, te, kn, ml, ur). Syllabus and textbooks are prescribed by SCERT / Director of School Education (Samacheer Kalvi Class 11 Bio-Zoology). 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) / arrear candidates: per-subject fees as notified. 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 First Year Zoology: Suggested Study Strategy

1Study from the current SCERT / Samacheer Kalvi Class 11 Bio-Zoology textbooks and the year's model question paper pattern released for DGE public exams.
2Practise both conceptual MCQs and the official long/short answer formats; this bank cannot replace writing or practical skill evidence.
3Master animal kingdom diagnostic characters (symmetry, coelom, level of organisation) with comparison tables before memorising examples.
4Use the official timetable to plan revision around your specific Part I / II / III sitting dates.
5After each practice set, log weak topic areas (by unit) and re-read those textbook chapters before retesting.

Frequently Asked Questions

What is the Tamil Nadu HSE First Year Zoology exam?

It is the official Class 11 (Higher Secondary First Year / +1) public examination paper in Zoology (Bio-Zoology), conducted by the Directorate of Government Examinations (DGE), Tamil Nadu, under the State Board / Samacheer Kalvi syllabus. March public sittings for +1 may be for arrear candidates as notified by DGE.

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 timetable PDF covering +1 arrear sittings where applicable.