MC 17 B - 5. Match the item in column A with that which is most appropriate in Column B. (f) Glucagon (g) Mortality (h) Hearing

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1 MC 7 B - 5 SECTION I (0 Marks) Attempt all questions from this section. Question (a) Name the following : (i) The cells of the testes that produce male hormone. (ii) The structural and functional unit of the kidney. (iii) The internal layer of the eye which prevents reflection of light. (iv) The biological term given to the protective membrane of the brain. (v) The cells of retina those are sensitive to colour. (c) (d) (e) What do the following stand for: (i) WHO (ii) UNO (iii) FSH (iv) ATP (v) NADP Explain the following terms: () Natality () Antibiotic () Root pressure () Parturition (5) Micturition Match the item in column A with that which is most appropriate in Column B: Column A Column B (i) cells of Pancreas (a) Insulin (ii) Death rate Photosynthesis (iii) Organ of corti (c) Fovea centralis (iv) Corpus luteum (d) Iris (v) Carbon-dioxide (e) Progesterone (f) Glucagon (g) Mortality (h) Hearing Rewrite and complete the following sentences by inserting the correct word in the space: (i) During metaphase chromosomes are arranged at. (ii) Surgical operation of fallopian tubes in females for family planning is called. (iii) The cord connecting foetus with the placenta is called. (iv) In animal cells carbohydrates are stored in the form of. (v) The chemical substance used to test the presence of starch in the cell of a leaf is. MC 7 B - 5

2 X - ICSE (Biology) MT EDUCARE LTD. (f) State whether the following statements are true or false. If false, rewrite the correct form of statement by changing the first or last word only. (i) The resting state in mitosis is called interphase. (ii) The fertilization site in the human female is oviduct. (iii) Centrosome is present only in animal cell. (iv) Antibodies are obtained from fungi and bacteria. (v) Deafness is caused due to rupturing of Pinna. (g) Note the relationship between the first two words and suggest the suitable word for the fourth place. (i) Transpiration : Stomata :: Guttation :. (ii) Retina : Eye :: Cochlea :. (iii) Meiosis : cells :: Mitosis :. (iv) Cerebrum : Fore brain :: Cerebellum :. (v) Sperm : Testes :: Ovum :. (h) State the main function of the following : () Conjunctiva () Eustachian tube () Medulla oblongata () Prostate gland (5) Thrombocytes Question (a) SECTION II (0 Marks) Attempt any four questions from this section. The diagram given alongside represents a certain category of blood vessels showing the role of a special structure in their walls. (i) Name the kind of blood vessels shown in the diagram. (ii) What is the structure shown inside the blood vessels? (iii) What is the role of these structures? (iv) Are these structures present in any other kind of blood vessels? If so, name it. (v) Towards which side of the figure (top or bottom) is the heart located. If a pea plant homozygous (pure) for tall is crossed with one homozygous (pure) for dwarf. What will be the appearance of - (i) F (ii) F (Progenies) The character of tallness (T) is dominant over dwarfness (t) MC 7 B - 5

3 MT EDUCARE LTD. X - ICSE (Biology) Question (a) The following diagram represents a plant cell after being placed in a strong sugar solution. Guidelines to indicate the following: () cell wall () strong sugar solution () protoplasm () large vacuole Study the diagram and answer the questions that follow: (i) What is the state of the cell shown in the diagram? (ii) Name the structure which acts as a selectively permeable membrane. (iii) If the cell had been placed in distilled water instead of sugar solution, which feature would not have been present? (iv) If the cell in the diagram possessed chloroplasts where would these be present? (v) Name any one feature of this cell, which is not present in animal cell. Define the following terms: (i) Photophosphorylation (ii) Diffusion (iii) Antitoxin (iv) Synapse (v) IUD Question (a) The diagram given below represents the human heart in one phase of its activity. Study the same and answer the questions that follow: VENA CAVA (i) Name the phase. (ii) Name the part labelled to 6. (iii) Which valves are closed in this phase? MC 7 B - 5 5

4 X - ICSE (Biology) MT EDUCARE LTD. Give the appropriate terms for the following: (i) Movement of mineral salts against the osmotic gradient using energy in the form of ATP? (ii) The region of distinct vision in the eye. (iii) The surgical method of sterilization in human male. (iv) The carbohydrate molecule found in the cell wall. (v) Name the hormone which prepares the body to face an emergency situation. Question 5 (a) The diagram given below is a developing human foetus in the womb. Study the same and answer the questions that follow: (i) Name the parts labelled to. (ii) What term is given to the period of development of the foetus in the womb? (iii) How many days does the foetus take to be fully developed? (iv) Name the hormone (any one) produced by the part labelled. (i) Mention any two measures to minimise noise pollution. (ii) Draw a neat and labelled diagram of malpighian capsule. Name the incoming and outgoing vessel. Question 6 (a) The diagram shown below is the lateral section of a testis of mans. Study the same and answer the questions that follow: (i) Label the parts to. [] [] [] (ii) State the function of parts labelled and. (iii) Name the process by which sperms are produced. Differentiate between the following pairs on the basis of what is indicated in the brackets: (i) Dynamic and static equilibrium (Definition) (ii) The renal artery and the renal vein (Amount of urea) (iii) RBC s and WBC s (Function) (iv) Monohybrid and Dihybrid cross (Phenotypic ratio) (v) Light reaction and Dark reaction. (Location) 6 MC 7 B - 5

5 MT EDUCARE LTD. Question 7 (a) The diagram given below is a diagrammatic representation of a part of the cross section of the root in the root hair zone. Study the same and answer the questions that follow: X - ICSE (Biology) (i) Name the parts labelled to. (ii) Is the root hair cell unicellular or multi-cellular? (iii) Name the process responsible for the entry of water molecules from the soil into A and A. (iv) What pressure is responsible for the movement of water in the direction indicated by arrows? The diagram given below is the seat of intelligence, reasoning and understanding. Study the same and answer the questions that follow. (i) What is this organ of utmost importance? (ii) Name the largest part of the organ in the given diagram. (iii) What is the white matter made up of? (iv) Name the parts labelled to. MC 7 B - 5 7