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ICSE Class X Board Examination

ICSE Biology (Science Paper 3) — Board Examination 2024

Board2024Subject code 523
Open source paper at oswaal360.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

Follows the published ICSE syllabus structure and links back to the source, but has not been reconciled line by line against a Council document.

Imported board paper from Oswaal Books (reproduction of CISCE board paper) on 2026-08-29.

Questions in this paper

Section A

  1. 1((vii))The ear ossicle that transports sound vibrations to
    Select the correct answers to the questions from the
    the inner ear:
    given options.    15 marks
  2. 1((i))Duplicated chromosomes are joined at a point (viii) If a person has a heart attack, what must be done
    termed: immediately?
  3. 1((ii))The process of conversion of ADP to ATP during R. Rush him/her to the hospital
    photosynthesis is called: S. Engage him/her in a conversation
    (a) Photolysis (b) Phagocytosis (a) P and Q (b) P and S
    (c) Photophosphorylation (d) Polymerisation (c) R and S (d) P, Q and R
  4. 1((iii))The process in which water is lost from the margins
  5. 1((ix))Adjusting the focal length of the eye lens to view
    of strawberry leaves is:
    objects at different distances is done by:
    (a) Osmosis (b) Imbibition
    (a) Cornea (b) Iris
    (c) Diffusion (d) Guttation
    (c) Ciliary muscles (d) Sclera
  6. 1((iv))The hormone that affects urination is:
  7. 1((x))Four friends P, Q, R and S were discussing the
  8. 1((v))Which one of the following helps in the opening of P. Colour blindness and malaria
    stomata:
    Q. Albinism and cholera
  9. 1((vi))A zygote which has Y chromosome inherited from
    the father will develop into a: Who gave the correct examples?
    (a) Will depend on the chromosome inherited from (a) P and Q (b) R and S
    the mother (c) P and R (d) Q and S
  10. 1((xi))Osmosis takes place when there is: body.5 marks
  11. 1((xii))A male gorilla has 48 chromosomes in each of its
    body cells. How many chromosomes will each of the    5 marks
  12. 1((xiv))Birth rate is the number of live births per thousand 48 hours to (b) ______ the leaves. A part of a leaf is
    persons in:
    inserted into a conical flask containing potassium
    (a) 1 year (b) 2 years hydroxide solution. This is to absorb (c) _____ from
    (c) 10 years (d) 20 years the flask. The plant is then placed in sunlight for a
  13. 1((xv))Industrial melanism was observed in: few hours. The experimental leaf is tested for starch.
    (a) Mice (b) Peppered moth The part of the leaf that was inside the conical flask
    turns (d) ______, whereas the part of the leaf outside
    (c) House flies (d) Crow
    turns (e) ________ in colour.
  14. 2((i))Name the following: (iv) Choose the odd one out from the following
    terms and name the category to which the others
    (a) Unicellular outgrowths from the epidermis of
    belong:
    roots.
    (a) Prothrombin, Thrombin, Fibrinogen, Albumin
    (b) A defect in our eyes, in which some parts of
    the object are in focus while the other parts are (b) Tonsils, Glomerulus, Spleen, Lymph nodes
    blurred. (c) Neutrophils, Basophils, Monocytes, Eosinophils
    (c) The tropic movement of plant parts in response (d) Leaves, Styrofoam, Grass, Cow Dung
    to chemicals. (e) Pulmonary artery, Renal artery, Coronary
    (d) The main nitrogenous waste formed in the artery, Hepatic artery    5 marks
  15. 2((v))Match the items given in Column I with most
    appropriate ones in Column II and rewrite the
    correct matching pairs:
    Column I Column II    5 marks

Section B

  1. 3((ii))distance between the ball and the basket. (1) Expand the abbreviation–NADP. [1] (c) Name the part of the brain that co-ordinates all
    Mention two adaptations in roots for absorption of the voluntary muscles of his body.
    water from the soil. Question 5
  2. 3((iii))distance between the ball and the basket. (1) Expand the abbreviation–NADP. [1] (c) Name the part of the brain that co-ordinates all
    Differentiate between Afferent arteriole and Efferent (i) Name the type of nerve which has the fibres of both
    arteriole (diameter). sensory and motor neurons.    1 mark
  3. 3((iv))distance between the ball and the basket. (1) Expand the abbreviation–NADP. [1] (c) Name the part of the brain that co-ordinates all
    Give two examples of water pollutants. (ii) Differentiate between Australopithecus and Modern
  4. 3((v))distance between the ball and the basket. (1) Expand the abbreviation–NADP. [1] (c) Name the part of the brain that co-ordinates all
    Ali has some pea plants in his garden which need a man based on body hair.
    support to grow as seen in the picture given below: (iii) “Birth rate in India is very high.” Mention two
    reasons in support of the statement.    2 marks
  5. 3((iv) [Section B])distance between the ball and the basket. (1) Expand the abbreviation–NADP. [1] (c) Name the part of the brain that co-ordinates all
    Give the exact location of:
    (a) Pericardium
    (b) Bicuspid valve    2 marks
  6. 3((v) [Section B])distance between the ball and the basket. (1) Expand the abbreviation–NADP. [1] (c) Name the part of the brain that co-ordinates all
    Given below is a schematic representation of the
    inheritance of the shape of seeds of garden pea.
    Answer the questions that follow:
    (a) Name the phenomenon depicted by the shoot
    in the given figure.
    (b) Define the above phenomenon.
    (c) Write the name of the part marked X.    3 marks
  7. 4((i))(a) Which is the dominant and recessive allele of
    Give the biological term for the surgical method of the trait?
    contraception in human females.
    (b) What does the ratio 3: 1 in the F2 generation    1 mark
  8. 4((ii))(a) Which is the dominant and recessive allele of
    State two harmful effects of acid rain on the represent?
    environment.
    (c) State Mendel’s Law of Dominance.    2 marks
  9. 6((iv))Write any two objectives of Swachh Bharat Abhiyan.
  10. 6((ii))Distinguish between diabetes mellitus and diabetes
  11. 6((v))Mohan is fond of playing basketball. His
    insipidus (endocrine gland concerned).
    concentration is on shooting the ball into the
    opponent’s basket as given in the picture. (iii) Carbon monoxide is dangerous when inhaled in
    excess. Comment on the statement.    2 marks
  12. 6((iv) [Section B])The diagram given below shows a section of the (a) Name the defect of the eye Mahesh is suffering
    human ovary. from.
    (b) Where is the image formed in this defect?
    (c) Mahesh consults an eye doctor and is prescribed
    suitable lenses to correct the defect. Which type
    of lens do his spectacles have?
  13. 8((ii))Name the mineral elements required for:
    (a) Clotting of blood
    (b) Synthesis of thyroxine
    (a) Name the process for the release of the part (ii) Mention two harmful effects of noise pollution.
    labelled 1. (iv) Why are RBCs efficient in their functions though
    (b) Write the name of the structure marked 2. they lack nucleus and mitochondria?    2 marks
  14. 8((v))Draw a neat, labelled diagram of a chloroplast. (v) The diagram given below represents a stage in
  15. 7((ii))Which parts of the ear are responsible for:
    (a) Static equilibrium?
    (b) Dynamic equilibrium?    2 marks
  16. 7((iii))Mention two structural differences between an
    artery and a vein.    2 marks
  17. 7((iv))Write any two limitations of using a Ganong’s
    Potometer to demonstrate the uptake of water.    2 marks
  18. 7((v))A teacher drew the diagram of heart on the (a) Identify the stage given above.
    blackboard and told the students to copy it in their (b) Give one reason to support your answer in (a).
    notebooks. Mahesh couldn’t see the diagram clearly
    (c) Mention the number of chromosomes given in
    as it appeared blurred to him.
    the diagram.
        3 marks