CISCE Class XI Biology Syllabus
CISCE Class XI Biology Syllabus

The Council for the Indian School Certificate Examination (CISCE) is a non-governmental national level education board in India, established in 1958. It was established with the intent to replace the overseas Cambridge School Certificate Examination with an all-India examination. The board conducts three national level examinations:

  • Indian Certificate of Secondary Education (ICSE) examination equivalent to class X examination.
  • Indian School Certificate (ISC) examination equivalent to class XII examination.
  • Certificate of Vocational Education (CVE) examination equivalent to class XII examinations.

The Indian School Certificate (ISC) examination is conducted every year after a two-year course beyond the Indian Certificate of Secondary Education (ICSE) examination or equivalent. For the two-year course students must study English compulsorily and three, four or five elective subjects. In total, thirty subjects are available in ISC. Students may select the subjects according to their chosen stream. In general, each stream has four compulsory subjects, and students also need to choose one optional subject from the available subjects in the school. Subjects get classified under four streams:

  • Medical
  • Non-Medical
  • Commerce
  • Humanities

However, the streams and subjects available may vary from school to school. Some schools may only have three streams: Science, Commerce, and Humanities. In such schools, Biology may get available as the optional subject in the Science stream with English, Maths, Physics, and Chemistry as compulsory subjects.

Besides this, students should also compulsorily participate in Socially Useful Productive Work and Community Work and must get passing grades.

Syllabus of Biology for the first year of the ISC (class XI) examination

ISC first year examination or class XI consists of two papers:

  1. Paper I: Theory (70 marks)
  2. Paper-II: Practical Work, Project file and Project (30 Marks)

Structure of Paper I for Class XI ISC Biology

Paper I consists of two parts: Part I having 20 questions, and Part II having 17 questions. Part II further gets divided into three sections:

  • Section A has seven(7) questions of 2 marks each
  • Section B having seven(7) questions of 3 marks each
  • Section C having three(3) questions of 5 marks each
PartsNumber of QuestionsMarks for each Question
I201
IISection A – 7 questions Section B – 7 questions Section C – 3 questions2 3 5

Internal choices are available for two questions of Section A and Section B; for all three questions of Section C.

The total time allowed to complete Paper I: Theory is 3 hours.

Units and their weightage of marks in ISC Paper I Class XI Biology

S. No.UnitsWeightage of marks
1Diversity of Living Organisms9
2Structural Organization of Animals and Plants11
3Cell: Structure and Function15
4Plant Physiology17
5Human Physiology18

Syllabus for ISC Class 11 Biology Paper I: Theory

Unit 1: Diversity of Living Organisms

  1. The Living World
  2. Three domains of life
  3. Taxonomic terms and systematics
  4. Concept of species
  5. Major taxonomic hierarchies
  6. Museums, herbariums, zoological and botanical gardens
  1. Biological classification
  2. Five kingdom classification
  3. Salient features of the kingdom of Monera, Protista, Fungi, Plantae, and Animalia
  4. Lichens, Viruses, and Viroids
  1. Plant Kingdom
  2. Algae (characteristics, examples, and economic importance)
  3. Bryophyta
  4. Pteridophyta
  5. Gymnosperm
  6. Angiosperm
  7. Comparison of life cycle patterns of different plant groups.
  1. Animal Kingdom
  2. Non-Chordata (characteristics and examples)
  3. Chordata (sub-classification, characteristics, and examples)

Unit 2: Structural Organisation in Animals and Plants

  1. Morphology of flowering plants
  2. Morphology of flower
  3. Structure of a typical flower
  4. Types of inflorescence
  5. Anatomy of flowering plants
  6. Plant Tissues
  7. The internal structure of root, stem, and leaf
  8. Cellular diagrams of T.S of roots and stem
  9. Cellular diagrams of V.S of monocot and dicot leaves
  10. Secondary growth in dicot system
  11. Structural organization in Animals
  12. Morphology, anatomy, and functions of different systems of cockroach

Unit 3: Cell: Structure and function

  1. Cell: the unit of life
  2. Structure of eukaryotic cells
  3. Cell envelope
  4. Cell membrane and cell wall
  5. Cell organelles – ultrastructure and function
  6. Endomembrane systems
  7. Mitochondria, ribosomes, plastids, and microbodies
  8. Cytoskeleton, cilia, flagella, and centrioles
  9. Nucleus, nuclear membrane, chromatin, and nucleolus
  10. Biomolecules
  11. Amino Acids and Proteins (structure, essential and non-essential amino acids and function)
  12. Carbohydrates (classification and function)
  13. Lipids and fats (classification, structure, and functions)
  14. Enzymes (properties, nomenclature, and classification; factors affecting enzyme activity)
  15. Cell cycle and cell division
  16. Definition of C-value
  17. Different stages of cell cycle
  18. Different stages of meiosis with diagrams
  19. Significance of meiosis

Unit 4: Plant Physiology

  1. Transport in plants
  2. Plant-water relations
  3. Water potential
  4. Long-distance transport of water
  5. Absorption, apoplast, symplast, transpirational pull, root pressure, and guttation
  6. Transpiration
  7. Opening and closing of stomata
  8. Uptake and translocation of mineral nutrients
  9. Phloem transport
  10. Mass flow hypothesis
  11. Mineral nutrition
  12. Essential minerals, micro, and macronutrients and their functions
  13. Deficiency symptoms
  14. Mineral toxicity
  15. Elementary idea of microphonics
  16. Nitrogen cycle
  17. Biological nitrogen fixation
  18. Photosynthesis in plants
  19. Definition
  20. Site of photosynthesis
  21. Photochemical and biosynthetic phases of photosynthesis
  22. Cyclic and non-cyclic photophosphorylation
  23. Chemiosmotic hypothesis
  24. Photorespiration
  25. C3 and c4 pathways
  26. Factors affecting photosynthesis
  27. Respiration in plants
  28. Cellular respiration – glycolysis and fermentation
  29. TCA cycle and electron transport system
  30. Energy relations – number of ATP molecules generated
  31. Amphibolic pathways
  32. Respiratory quotient
  33. Plant growth and development
  34. Seed germination
  35. Phases of plant growth
  36. Differentiation, dedifferentiation, and redifferentiation
  37. Growth regulators: auxin, gibberellin, cytokinin, ethylene, ABA
  38. Seed dormancy
  39. Vernalisation
  40. Photoperiodism

Unit 5: Human Physiology

  1. Digestion and absorption
  2. Alimentary canal and digestive glands
  3. Role of digestive enzymes
  4. Peristalsis, digestion, absorption, and assimilation of proteins, carbohydrates, and fats
  5. Calorific values of proteins, carbohydrates, and fats
  6. Egestion
  7. Nutritional and digestive disorders
  8. Breathing and exchange of gases
  9. Respiratory system in humans
  10. Mechanism of breathing and its mechanism
  11. Disorders related to respiration
  12. Body fluids and circulation
  13. Human circulatory system
  14. Structure of the human heart
  15. Cardiac cycle, cardiac output, and ECG
  16. Double circulation
  17. Regulation of cardiac activity
  18. Disorders of the circulatory system
  19. Excretory Products and their elimination
  20. Modes of excretion – ammonotelism, ureotelism, uricotelism
  21. Human excretory system – structure and function
  22. Urine formation and osmoregulation
  23. Regulation of kidney function
  24. Renin, angiotensin
  25. Atrial natriuretic factor
  26. Role of erythropoietin
  27. Disorders of the excretory system – uremia, renal failure, renal calculi, nephritis
  28. Dialysis and artificial kidney  
  29. Locomotion and movement
  30. Contractile proteins and muscle contraction
  31. Skeletal system and its functions
  32. Joints
  33. Disorders of the muscular and skeletal system
  34. Neural control and coordination
  35. Neuron and nerves
  36. The nervous system in humans – central nervous system
  37. Peripheral nervous system
  38. Visceral nervous system
  39. Generation and conduction of nerve impulse
  40. Sensory perception
  41. Sense organs
  42. Elementary structure and function of eyes and ears
  43. Chemical Coordination and integration
  44. Endocrine glands and hormones
  45. Human endocrine system – hypothalamus, pituitary, pineal, thyroid, parathyroid, adrenal, pancreas, gonads
  46. Mechanism of hormone action
  47. Role of hormones as messengers and regulators
  48. Hypo and hyperactivity and related disorders
  49. Dwarfism, acromegaly, cretinism, goiter, exophthalmic goiter, diabetes mellitus, diabetes insipidus, Grave’s disease, and Addison’s disease

Syllabus for ISC Class 11 Biology Paper II: Practical and Project Work

Biology Practical Work For ISC XI

The practical work contributes 15 marks, and the duration is 3 hours.

  1. Scientific techniques
  2. To study parts of a dissecting microscope.
  3. To study parts of a compound microscope.
  4. Physiology
  5. Food test: test for starch, glucose, sucrose, protein, and fats
  6. To study the effects of heat on the permeability of beetroot cells.
  7. Separation of plant pigments from leaves through chromatography
  8. Demonstration of plasmolysis
  9. Morphology
  10. Morphology and modification of roots stems and leaves
  11. Preparation of temporary slides Mucor/Rhizopus
  12. Make labeled diagrams and mark observations
  13. Cytology
  14. Preparation and study of temporary slides of onion peel
  15. Study stages of mitosis in onion root tips
  16. T.S of monocot and dicot stem
  17. T.S of monocot and dicot root
  18. Draw and label all parts as seen from the low power microscope
  19. Spotting
  20. Identification of stained preparation of:
  21. Mammalian blood cells
  22. Bacteria
  23. Spirogyra
  24. Amoeba
  25. Yeast
  26. Identification of specimens of following, draw, label, and at least two visible characteristics as observed under the microscope in three minutes:
  27. Liverworts
  28. Moss
  29. Fern
  30. Pinus
  31. Mushroom
  32. Monocot plant – bamboo
  33. Dicot plant – petunia
  34. Sponge
  35. Hydra
  36. Tapeworm
  37. Leech
  38. Silkworm
  39. Rohu fish
  40. Comment on experimental set up studied in physiology, identity, draw a labeled diagram, and write observation and inference within three minutes:
  41. Osmosis
  42. Transpiration
  43. Photosynthesis
  44. Transpiration pull

Biology Project Work for ISC XI

Anyone project related to :

  1. Experiment on any aspect of plant/animal life
  2. Any aspect of the environment
  3. Diabetes
  4. Endocrine disorders
  5. Yeast fermentation and production of alcohol or any other commercial dependant on plant/animal life or their products
  6. Culture of earthworms, protozoans, molds
  7. Setting up of an aquarium