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ICSE Class X Board Examination

ICSE Biology (Science Paper 3) — Specimen Question Paper 2024

Specimen2024Subject code 523
Open source paper at static.collegedekho.com (opens in a new tab)
Board
ICSE Class X Board Examination
Class
Class 10
Subject
Biology
Year
2024
Total marks
Not verified
Duration
Not verified

Verification and rights

Checked against a named, citable source that is recorded with the record.

Imported specimen paper from CollegeDekho (mirror of CISCE PDF) on 2026-08-29.

Questions in this paper

Section A

  1. 1((iii))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    While playing with his friends, Peter inserted a stick into his ear. He lost his
    hearing due to the rupture of:
  2. 1((iv))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    The prime source of Chloro fluorocarbons is:
  3. 1((v))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    Oxygenated blood to heart is supplied by:
  4. 1((vi))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    Assertion (A): There is frequent urination in summer than in winter.
    Reason (R): In summer we lose a lot of water as sweat, so the kidneys reabsorb
    more water. Hence, urine formed is less in summer than in winter.
  5. 1((vii))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    The age restrictions for marriage for boys and girls by law in India is:
  6. 1((viii))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    Hari is fond of watching the fish in an aquarium. So, he set up an aquarium in his
    house. Along with a number of fresh water fish, he also placed a clown fish which
    is a salt water fish. After few hours, the clown fish was found dead and floating on
    water. This was due to:
  7. 1((ix))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    The solvent used for dissolving chlorophyll while testing a leaf for starch is:
  8. 1((xii))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    The stress hormone in plants which functions during a drought is:
  9. 1((xiii))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    Compressed natural gas (CNG) is proposed to be a better alternative to fossil fuel
    Which of the following reasons makes it a better alternative?
    P. Combustion leaves little or no residue
    Q. Absence of Carbon in CNG
    R. Easily available
  10. 1((xv))Choose the correct answers to the questions from the given options. [15] (Do not copy the question, write the correct answers only.)
    Lata wanted to cross the road. She looked on either side of the road and then
    walked across to the other side of the road.
    Which of the following is / are involved in the process described above?
    1. Cerebrum
    2. Cerebellum
    3. Skeletal muscles
    4. Medulla Oblongata
  11. 2((ii))Arrange and rewrite the terms in each group in the correct order so as to be in a
    logical sequence beginning with the term that is underlined.    5 marks
  12. 2((iii))Fill in the blanks with suitable words:
    The technical term for short sightedness is    5 marks
  13. 2((iv))Choose the odd one out from the following terms and name the category to which
    the others belong:    5 marks
  14. 2((v))Match the items given in Column I with the most appropriate ones in Column II and
    rewrite the correct matching pairs.
    Column I Column II    5 marks

Section B

  1. 3((i))The gene of red hair is recessive to the gene for black hair. What will be the hair
    colour of a person if he inherits a gene for red hair from his mother and a gene for
    black hair from his father?    1 mark
  2. 3((v))Draw a neat, labelled diagram of a duplicated chromosome.3 marks
  3. 4((i))Mention the exact location of Corpus callosum.1 mark
  4. 4((ii))What are the two hormones secreted by Corpus luteum?2 marks
  5. 4((iv))What is the significance of placenta in the growth of foetus?2 marks
  6. 4((v))Draw a neat, labelled diagram of a human gamete that has the sex chromosome.Y3 marks
  7. 5((ii))Write the overall chemical equation of Photosynthesis.2 marks
  8. 5((iii))A potted plant having variegated leaves was exposed to sunlight for 3 hours. One of
    the leaves was plucked and tested for starch. What will be your observation after the
    starch test?    2 marks
  9. 5((iv))The initial food prepared by a green plant is A, which is later converted to food B by
    polymerization. Name food A and food B.    2 marks
  10. 5((v))Study the diagram given below and answer the questions that follow:
    (a) Name the gas released when the setup was placed in sunlight.
    (b) Give an example of an aquatic plant that can be used in the above experiment.
    (c) What will happen if a pinch of Sodium bicarbonate is added to the water?    3 marks
  11. 6((i))Give the exact location of genes.1 mark
  12. 6((iii))Mention two significant features of the stage Anaphase during Mitosis.2 marks
  13. 6((iv))How many daughter cells are formed at the end of Mitosis and Meiosis?2 marks
  14. 6((v))Study the diagram given below and answer the questions that follow:
    (a) Name the phenomenon depicted by the shoot in the above diagram.
    (b) Which plant hormone plays an important role in the above movement?
    (c) Name one stimulus which gives a positive response for the roots but negative
    response for the shoot.    3 marks
  15. 7((i))What is the scientific name for man?1 mark
  16. 7((ii))What are vestigial organs? Give one example.2 marks
  17. 7((iii))State two structural differences between an artery and vein.2 marks
  18. 7((iv))Mention any two features of the Cro-Magnon man.2 marks
  19. 7((v))Study the picture given below and answer the questions that follow:
    (a) Name the category of waste that is being disposed.
    (b) Give an example of such a waste.
    (c) Are they hazardous to humans and animals? Give a suitable reason to justify
    your answer.    3 marks
  20. 8((ii))Name the two sensory cells in retina meant for light adaptation.2 marks
  21. 8((iii))Mention one function each for – Cerebrum and Cerebellum.2 marks
  22. 8((iv))State any two objectives of Swachh Bharat Abhiyan.2 marks
  23. 8((v))Given below is the diagram of human blood smear. Answer the questions that follow:
    (a) Mention one structural difference between 1 and 2.
    (b) What is the function of part 3?
    (c) Name the part labelled 4.    3 marks