ICSE 11th Board Sample Paper Biology


Sample papers


ICSE 11th Board 2012 Sample Paper Biology

Sample Paper – 2012

Subject – Biology

Class – XI

  1. The antibiotic discovered first
  2. Chemical substances obtained from certain micro – organism that destroys harmful microbes.
  3. WHO
  4. The micro – organism that causes AIDS.
  5. A substance that initials an in mule response
  1. Gestation period in human female is ______________ days.
  2. The period of pregnancy is called _____________.
  3. The part where fertilization occurs in human female ________________.
  4. Sperms contain __________ number of chromosomes.
  5. Placenta is permeable.
  1. All living things must excrete.
  2. These are frequent urination in winter than in summer.
  3. Glucose is absent in the urine of a healthy person.
  4. The urine is slightly thicker in summer than winter.
  5. As result of ultra filtration along with excretory product certain useful products like glucose, salt etc are also filtered but these are not excreted.
  1. Fructose, Sucrose, Glucose, Calcium
  2. Thrombin, Monocot, Fibrin, Vita mink
  3. Eosinophil, Basophil, leucocytes, Nucleoplasm
  4. Auricle, Aorta, Ventricles
  5. RBC, ATP, WBC, Platelet
  1. Oxygen is the energy currency of a, living cell
  2. Respiration is the only biological process in which oxygen is produced
  3. KDH absorbs necessary for photosynthesis
  4. Starting point of food chain is plant
  5. Photo synthesis occurs in all plants
  1. Diffusion
  2. Plasmolysis
  3. Root pressure
  4. Osmotic  pressure
  5. Semi – permeable membrane
  1. Cortex
  2. Stomata
  3. Epithelial
  4. Root hair
  5. Cambium




(Mitochondria, Chloroplasts, Cell wall, Cytoplasm, Cellmemberane)

  1. The major part of the cell excluding nucleus.
  2. Very thin layer of all cells.
  3. Non – living structures which surround the plant cell.
  4. Where cellular respiration occurs?
  5. Which contain chlorophyll?

Question – 2

  1. Name: (3)
  1. The type of pollution which causes headache, irritation in eye membrane, affects respiratory tract and may also cause cancer.
  2. An organism which helps in nitrogen fixation
  3. The unit used for measuring the relative loudness of sounds.
  4. The source of maximum air pollution in large cities.
  5. The solid particles which pollute the environment.
  6. A pollutant largly responsible for acid rain.
  1. Answer the following: (3)
  1. Give reason why bio – fertilizers are preferred to chemical fertilizers.
  2. Give two measures for controlling pollution of river water
  3. Noise is regarded as unwanted sound. Give reasons.
  1. The figure shows a special type of association between two organisms. (4)
  1. What is the importance of these associations?
  2. How do they benefit each other?
  3. Name the organism
  4. Name the kind of association

Question – 3

  1. Answer all questions (4)
  1. Briefly write about thyroid gland.
  2. Why pituitary is called the master gland?
  3. Name some endocrine glands.
  4. What are harmones?
  1. Name the glands responsible for the following diseases: (3)
  1. Diabetes insipid
  2. Myxoedena
  3. Diabetes mellitus
  4. Cretinism
  5. Goiter
  6. Gigantism
  1. (3)
  1. Give two advantages of small family
  2. What are the age restrictions for marriage by law for boys and girls inIndia?
  3. Name two surgical techniques (one for humane male and another for human female) that can be used to prevent pregnancy in the female

Question – 4

  1. (3)
  1. Mention the characteristics of the image that falls on the retina of the eye.
  2. What is a lachrymal gland?
  3. What is meant by power of accommodation of the eye?
  1. (3)
  1. How is ear protected from from dust and bacteria?
  2. Write the four principal tastes and the respective regions of the tongue concerned with their perception.
  1. Write the difference between: (4)
  1. Sensory neuron and motor neuron
  2. Cerebrum and cerebellum

Question – 5

  1. Answer the following: (5)
  2. The adjoining figure shows an experiment performed on germinating seeds.
  1. What is anserobic respiration? Name two organisms respiring anaerobically.
  2. What is the importance of the process of fermentation?
  3. Give two chemical overall equations representing aerobic and anaerobic respiration.
  4. Do the roots respire? If so, how?
  5. Explain briefly seeds sown deep in the soil fail to germinate.
  1. Write the chemical equation for the process mentioned in (i) above
  2. Draw a neat labeled diagram of the apparatus as it would appear after 24 hours.
  3. The soaked seeds used in the experiment have their seed coats removed give reasons for the same.
  4. What is the aim of experiment?

Question – 6

  1. Explain briefly transpiration is important for plants. (2)
  2. Describe any three conditions which affect transpiration. (3)
  3. Name the respiratory openings found on stems of woody plants. (1)
  4. Describe an experiment to prove that transpiration occurs more from the lower surface of the leaf. (3)
  5. Give the technical term for loss of water in the form of water droplets from the margin of leaves. (1)

Question – 7

  1. Write the location and function of the following: (3)
  1. Collenchymas
  2. Parenchyma
  3. Ciliated epithelium
  4. WBC
  5. Cardiac muscle
  6. Meristematic tissue
  1. Write reference to the diagram answer the question (3)
  1. Label the parts 1 – 3
  2. Identify the figure shown alongside
  3. What is the function of part – 1?
  4. Where can you see this structure?
  1. State the difference between:
  1. Bone and cartilage
  2. Cell and tissue

Question – 8

  1. Write the kind of animal tissue found lining the respiratory organs. (1)
  2. Give below is an incomplete table relating to certain structures found in the human body, their location and function. Study the same and then give the appropriate answer in terms of structure, location and function, for the blank 1 to 8: (4)

Structure Location function Epiglottis 3 5 Yellow spot 1 4 The glands on the top of the kidneys 7 2 Insulates the axon 6 8

  1. Write the kind of animal tissue found lining the respiratory organs. (1)
  1. Diaphragm in breathing
  2. Squamous epithelium of alveoli
  3. Cartilage in trachea
  4. The epidermis
  5. The mucus membrane inside the nasal passage.




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