TS Intermediate Botany and Zoology Exam Pattern 2025-26: TS Inter 2nd Year Biology Chapter-Wise Weightage

Pratha Shishodia

Updated On: November 25, 2025 11:53 AM

TS Intermediate Botany and Zoology Exam Pattern 2025-26 has been released online. According to the exam pattern, the theory paper for both Botany and Zoology will be conducted for 60 marks. 
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TS Intermediate Botany and Zoology Exam Pattern 2025-26
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TS Intermediate Botany and Zoology Exam Pattern 2025-26 has been specified online by TSBIE. 8 units are included in the Zoology syllabus, and 6 units are included in Botany. The theory paper will be conducted for 60 marks separately for both. There will be separate exams for Botany and Zoology. The Botany question paper will be divided into 3 sections. Section A will include 10 questions of 2 marks, and students will have to attempt all of them. In section B, students can opt for any 6 questions out of 8. Each question will be of 4 marks. From section C, students can do any 2 out of 3 questions. The questions will be of 8 marks each. Similarly, the Zoology question paper will include 3 sections. In section A, students will get 10 questions of 2 marks. They will get a choice in section B, out of 8, they can opt for any 6 questions of 4 marks each. In section C, students will get long questions of 8 marks. They will have to do any 2 out of 3 questions. Also, Check: TS Intermediate Botany and Zoology Syllabus 2025-26

In the question paper, students will find very short questions, short questions, and long questions. There will be internal choices in some of the questions. Students can make wise choices while attempting the questions. For more information related to the Biology exam pattern, students can read the article in detail.

TS Intermediate Zoology Exam Pattern 2025-26

Check out the topics and subtopics included in the Zoology exam pattern, along with the periods allotted for each chapter, from the table given below:

Unit

Subtopics

Periods

UNIT–I: Human Anatomy & Physiology I

Digestion & Absorption; Digestive System; Digestive Process; Peristalsis; Absorption; GI Hormones; Disorders; Respiratory Organs; Human Respiratory System; Mechanism of Breathing; Respiratory Volumes/Capacities; Exchange of Gases; Transport of Gases; Regulation of Respiration

19

UNIT–II A: Body Fluids & Circulation

Lymphatic System; Blood Clotting; Circulatory Pathways; Human Cardiovascular System; Cardiac Cycle; Double Circulation; Regulation of Cardiac Activity; Blood Vessels; Hypertension; CAD; Angina; Heart Failure

11

UNIT–II B: Excretory Products & Their Elimination

Modes of Excretion; Excretory Organs; Human Excretory System; Kidney & Nephron; Urine Formation; Osmoregulation; RAAS; ANF; ADH; Diabetes Insipidus; Role of Other Excretory Organs; Uraemia; Renal Failure; Renal Calculi; Nephritis; Glomerulonephritis; Dialysis

12

UNIT–III: Human Anatomy & Physiology III

Musculo–Skeletal System; Types of Movement; Muscle Structure; Skeletal Muscle Fibre; Contractile Proteins; Mechanism of Contraction; Muscle Fatigue; Cori Cycle; Muscle Fibre Types; Skeleton (Axial & Appendicular); Joints; Synovial Joints; Muscular/Skeletal Disorders; Neural System (CNS/PNS/Somatic/Autonomic); Nerve Impulse; Synapse; Reflex Arc; Eye; Vision; Ear; Hearing; Neural Disorders

20

UNIT–IV A: Endocrine System

Endocrine Glands; Hormones; Pituitary; Thyroid; Parathyroid; Adrenal; Pancreas; Gonads; Hormone Mechanism; Hormones as Messengers; Disorders: Dwarfism, Acromegaly, Gigantism, Cretinism, Goitre, Exophthalmic Goitre, Myxedema, Tetany, Diabetes Mellitus, Diabetes Insipidus, Insulin Shock, Addison’s Disease, Cushing Syndrome

12

UNIT–IV B: Immune System

Cells of Immune System; Immune Organs; Innate & Acquired Immunity; Active & Passive Immunity; Humoral & Cell-Mediated Immunity; Vaccination; HIV & AIDS; Hypersensitivity; Autoimmune Disorders; Graft Rejection

05

UNIT–V: Human Reproduction & Reproductive Health

Male Reproductive System; Female Reproductive System; Gametogenesis; Menstrual Cycle; Fertilization; Implantation; Gastrulation; Extraembryonic Membranes; Placenta; Parturition; Lactation; STD Prevention; Birth Control Methods; IUDs; Pills; Surgical Methods; MTP; Amniocentesis; ART: IVF, ZIFT, GIFT, ICSI, AI, Surrogacy

13

UNIT–VI: Genetics

Heredity; Morgan’s Experiments; Pleiotropy; Codominance; Multiple Alleles; ABO & Rh Groups; Erythroblastosis Foetalis; Polygenic Inheritance; Sex Determination; Male/Female Heterogamety; Human Sex Determination; Barr Bodies; Haplodiploidy; Sex-Linked Traits; Haemophilia; Colorblindness; Genetic Disorders: Thalassemia, Sickle Cell Anaemia, Cystic Fibrosis, PKU, Alkaptonuria; Down, Turner, Klinefelter Syndromes; HGP; DNA Fingerprinting

18

UNIT–VII: Organic Evolution

Origin of Life; Biological Evolution; Evidences (Fossils, Anatomy, Embryology, Molecular); Lamarckism; Darwinism; Mutation Theory; Neo-Darwinism; Hardy-Weinberg; Evolutionary Forces: Natural Selection, Gene Flow, Drift; Speciation: Allopatric, Sympatric; Human Evolution

10

UNIT–VIII: Applied Biology

Animal Husbandry; Dairy Management; Poultry; Apiculture; Fishery; Biotech in Medicine; Vaccines; Molecular Diagnosis; Gene Therapy; Transgenic Animals; Stem Cells

12

Download TS Intermediate Biology Previous Year Question Paper

TS Intermediate Botany Exam Pattern 2025-26

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A total of 6 units is included in the curriculum for Botany. Check out the detailed exam pattern from the table given below:

Unit

Subtopics

Periods

UNIT–1: Plant Physiology

Chapter 1: Transport in Plants — Means of Transport; Plant Water Relations; Long Distance Transport of Water; Transpiration; Uptake & Transport of Mineral Nutrients; Phloem Transport (Source to Sink). Chapter 2: Mineral Nutrition — Methods to Study Mineral Requirements; Essential Mineral Elements; Absorption Mechanisms; Solute Translocation; Soil as Reservoir; Nitrogen Metabolism. Practicals: Osmosis by Potato Osmoscope

20

Unit 1

Chapter 3: Enzymes — Chemical Reaction; Enzyme Action; Factors Affecting Activity; Classification of Enzymes; Co-factors. Chapter 4: Photosynthesis — Early Experiments; Site of Photosynthesis; Pigments; Light Reaction; Electron Transport; ATP & NADPH Use; C4 Pathway; Photorespiration; Factors Affecting Photosynthesis. Practicals: Plasmolysis; Rate of Transpiration (Cobalt Chloride); Pigment Separation

23

Unit 1

Chapter 5: Respiration in Plants — Glycolysis; Fermentation; Aerobic Respiration; Balance Sheet; Amphibolic Pathway; Respiratory Quotient. Chapter 6: Plant Growth & Development — Growth; Differentiation, Dedifferentiation; Development; Plant Growth Regulators; Seed Dormancy; Photoperiodism; Vernalisation. Practicals: Plant Population Study

22

UNIT–2: Microbiology

Chapter 7: Bacteria — Morphology; Cell Structure; Nutrition; Reproduction; Importance to Humans. Chapter 8: Viruses — Discovery; Classification; Structure; Multiplication; Viral Diseases in Plants & Animals. Practical: Population Density by Quadrat Method

15

UNIT–3: Genetics

Chapter 9: Principles of Inheritance & Variation — Mendel’s Experiments; Monohybrid Cross; Deviations; Dihybrid Cross; Chromosome Theory; Linkage & Recombination; Mutations

11

UNIT–4: Molecular Biology

Chapter 10: Molecular Basis of Inheritance — DNA; Search for Genetic Material; RNA World; Replication; Transcription; Genetic Code; Translation; Gene Expression Regulation. Practical: Mount Preparation of Root & Stem

15

UNIT–5: Biotechnology

Chapter 11: Biotechnology Principles & Processes — Principles; Tools of rDNA Technology; rDNA Process. Chapter 12: Biotechnology Applications — Agriculture Applications; Other Uses; Transgenic Plants; Bio-safety & Ethics. Practicals: Stomata Distribution; Aerobic Respiration; Imbibition

16

UNIT–6: Plants, Microbes & Human Welfare

Chapter 13: Enhancement in Food Production — Plant Breeding; SCP; Tissue Culture. Chapter 14: Microbes in Human Welfare — In Household Products; Industrial Use; Sewage Treatment; Biogas; Biocontrol; Biofertilizers; Challenges by Microbes. Practicals: Anaerobic Respiration; Phototropism; Apical Bud Removal; Suction due to Transpiration; Controlled Pollination (Emasculation/Bagging/Tagging)

17

Also Read: TS Intermediate Biology Sample Paper 2025-26

Make sure to understand the exam pattern and syllabus in detail to perform your best during the exam. You can also pick up model test papers available online to practice.

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