ICSE Set Set1 Year Icse Biology98 Set1.php Biology Exam Paper for students online
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- 1998 ( I.C.S.E)
You are on Questions - 1 & 2
Time:One Hour and a
-Answer to this paper must be written on the paper provided separately.
-You will NOT be allowed to write during the firs 15 minutes.
-This time is to be spent in reading the question paper.
-The time given at the head of this paper is the time allowed for writting the answers.
-The question paper is divided into two Sections.
-Section I contains one questions with five parts (a) to (e); all five parts are to be answered.
-Section II contains six questions numbered 2 to 7. You are to answer any four of these questions.
-The intented marks for questions or parts of questions are given in brackets[ ].
Section-I 40 (Marks)
Q 1 (a) Name
the following :
(i) The duct which transports urine from the kidney to the urinary bladder.
(ii) the endocrine gland which produces emergency hormone .
(iii) The sheet of muscle between the thorax and the abdomen of man.
(iv) The fluid that is present inside and outside the brain.
(v) The opening though which light enters the eyes.
(vi) Openings on the stem through which transpiration occurs.
(vii) The organ in man concerned with maintaining water balance in the body.
(viii) The photosensitive pigment present in the 'rod' cells in the retina.
Q 1 (b) Select the correct answer out of four available choices given under each question. Rewrite the correct answer from I to VIII :
(I) Osmosis involves
diffusion of :
(i) suspended particles from lower to higher concentration.
(ii) suspended particles from higher to lower concentration.
(iii) water from the more concentration solution to the less concentrated solution.
(iv) water from the less concentration solution to the more concentrated solution.
Transpiration pull will be maximum under which of the following conditions?
(i) open stomata, dry atmosphere and moist soil.
(ii) open stomata, high humid atmosphere and well irrigated soil.
(iii) open stomata, high humid atmosphere and dry soil.
(iv) closed stomata, dry atmosphere and moist soil.
(III) If the
rate of respiration becomes more than the rate of photosynthesis, plants will :
(i) continue to live , but will not be able to store food.
(ii) Be killed instantly.
(iii) grow more vigorously because more energy will be available.
(iv) stop growing and gradually die of starvation.
(IV) Which one of
these reactions occurs during photosynthesis ?
(i) carbon dioxide is reduced and water is oxidised.
(ii) water is reduced and carbon dioxide is oxidised.
(iii) carbon dioxide and water are both oxidised
(iv) carbon dioxide and water are both reduced.
commonly involves :
(i) removal of all by-products during catabolism.
(ii) removal of by-products during anabolism.
(iii) removal of nitrogenous waste.
(iv) all of the above.
(VI) In mammals ,
the cropus callosum connects :
(i) the two optic lobes.
(ii) the two cerebral hemispheres.
(iii) the two cerebrum to the cerebellum.
(iv) the pons to the medulla oblongata.
(VII) which of the
following is the route that a sperm follows when it leaves the testis of a
(i) Vas deferens - eqpididymis - urethra.
(ii) urethra- eqididymis- vas deferens.
(iii) epididymis - urethra - vas deferens
(iv) eqididymis - vas deferens - urethra.
(VIII) Which one of
the following NOT a function of WHO ?
(i) Maintaining statistical health records for most countries.
(ii) Preparetion and marketing of new medicines.
(iii) Regulateing international quarantine work.
(iv) Playing an important role in the eradication of epidemic and endemic diseases.
Q 1(c) Given
below is an example of a certain structure and its special functional activity
e.g. Kidney and excretion. On a similar pattern fill in the blanks :
(i) Ribosomes and ......................................
(ii) Blood platelets and ................................
(iii) Cochlea and .........................................
(iv) Hydathodes and ..................................
(v) Alveoli and ...........................................
(vi) Chloroplasts and .................................
(vii) Meninges and ....................................
(viii) Neutrophils and ................................
Q 1(d) Choose
the odd one in each of the following :
Example : Calyx , Corolla, style , Androecium.
Answer : style
i)Insulin , Blood sugar, Andrenalin , Thyroxine
ii)Oestrogen, Progesterone, Testosterone , Prolactin
iii)Larynx, Pancrease , Testis , Ovary
iv)Cerebrum , Cranium , Cerebellum , Pons
v)Cell wall, Plastids , Large Vacuole , Centrosome
vi)Cortex , Pelvis , Retina , Medulla
vii)Trachea , Bronchus , Alveolus , Diaphgram
viii)Phenol , Boric acid , Iodine , Mercurochrome.
Q 1 (e) Which of the statements in Coloum II are appropriate for the items listed in Coloum I ? Rewrite the correct matching pairs :
|Column I||Column II|
|1)The blind spot||a) carries impulses away from the brain and spinal cord.|
|2)The yellow spot||b)carries impulses towards the brain and spinal cord|
|3)The stroma||c)is the place for aerobic respiration.|
|4)The grana||d)is the place for dark reaction of photosynthesis|
|5)Cretinism||e)is the place through which transpiration takes place.|
|6)Myxoedema||f)is the place for light reaction of photosynthesis|
|7)Afferent neuron||g)is the number of deaths in a specified number of time|
|8)Mortality||h)is the number of live births in a specified period of time|
|i)is free of rod cells.|
|j)is the exact centre of the posterior portion of the retina|
|k)is a condition due to undersecretion of thyroxine in an adult.|
|l)is a condition due to lack of thyroxine in a child.|
Q 2 (a) The following simplified diagram refers to the outline plan of the circulation of blood in a mammal. Study the diagram and write the number and the name of the blood vessel in each case as mentioned under :
(i) several hours after a meal
containing a lot of protein, which vessel will contain the highest
concentration of urea ?
(ii)Which vessel would contain
the highest concentration of amino acids and glucose soon after
Q 2 (b) Explain briefly the
role of the following health aids :
Q 3 (a) Moist germinated
seeds were placed in thermos flask A, and germinating seeds which were placed in
thermos flask B. Thermometers wre inserted in the flasks and the mouth of
each flasks plugged with moist cotton wool. The two flasks were fixed
upside down as shown in the diagram. The initial temperature on both
thermometers was noted . After about 48 hours, the temperature in flask A
was found to be much higher than that in flask B
i) State the object of using the apparatus
ii) Explain why a rise in temperature occurs in flask A
iii) If 5% formalin was not used after boiling the seeds, the temperature of flask B would have risen considerably. Explain
iv) Why were the flasks inverted ?
Q 3 (b) The following diagram is
that of a human brain. Guidelines 1 to 5 indicate different parts of the
surface of the brain and these are as follows :
2. Temporal lobe of cerebrum
study the diagram and
answer the following questions :
(I) What handicaps would result from :
i) damage to part numbered 3 ?
(ii) damage to part numbered 4 ?
(II) Mention one main function of each of the parts numbered 1, 2and 5.
Q 4(a) The following
diagram represents a mammalian kidney tubule and its blood supply. Parts
indicated by the guidelines 1 to 8 are as follows :
1.U-shaped loop of Henle.
2. Proximal convoluted tubule with blood capilliaries
4.Afferent arteriole from renal artery.
6.Venule to renal vein
8. Distal convoluted tubule with blood capillaries
study the diagram and answer the following questions in each case :
i)Where does ultrafiltration take place /
ii)Which structures contains the lowest concentration of urea ?
iii)Which structures contains the highest concentration of urea ?
iv)Which structures contains the lowest concentration of glucose ?
v)Where is the most water reabsorbed ?
Q 4 (b) A well watered healthy potted plant with variegated leaves was kept in darkness for about 24 hours. It was then set up asshown in the diagram below and exposed to light for about 12 hours. At the end of this time, leaf X and leaf Y were tested for starch. Study the diagram and answer the questions that follows :
i) why was the plant initially
kept in darkness for 24 hours ?
ii) What is the function of sodium hydroxide solution in the flask ?
iii) select the correct leaf from the five available choices shown in the diagram as A,B,C,D,and E . Rewrite the correct answer by filling in the appropriate letter for the question that follows :
1) After the starch test, leaf X would look like ..............................
2) After the starch test, leaf Y would look like...............................
iv) The experiment with leaf Y shows that photosynthesis requires the presence of certain factors. Mention any one factor.
Q 5 (a) State one function
of each of the following :
i) Ciliated epithelium lining the respiratory tract
Q 5 (b) The following diagram represents a plant cell after being placed in a strong sugar solution . Guidelines 1 to 5 indicate the following :
1. Cell wall
2. Strong sugar solution
4. 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 act as a selectively permeable membrane.
iii) If the cell had been placed in distilled water instead of strong sugar solution , which features 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 plant cell which is not present in animals cells.
Q 6 (a) The diagram below
shows part of the capillary bed in an organ of the mammalian body. Some of
the blood arriving at the capillaries at points labelled. A moves out into
the spaces between the tissue cells. Study the diagram and answer the
questions that follows :
i) when the liquid from the blood is surrounding the cells , what is it called ?
ii) Name any one important component of the blood which remains inside the capillaries and fails to move out into the spaces.
iii) Some of the liquid
surroundings the cells does not pass directly back into the blood but eventually
reaches it by another route through vessel X. Name the fluid present in
Q 6 (b) Answer the
following questions :
i) Name the endocrine cells present in the Pancreas.
ii)Name two hormones secreted by the above mentioned cells.
iii)Mention one main function of each hormone named in (ii)
B. Fallopian tube
Give appropriate terms for each of the following :
i)the cost of reproductive phase in a young female
ii)Rupture of follicle and release of ovum from the ovary.
iii)Monthly discharge of blood and disintegerated tissues in human female
iv)Process of fusion of ovum and sperm
v)Fixing of developing zygote on
the uterine wall.
Q 7 (b) Differentiate
between members of each of the following pairs with reference to the phrases in
(i)Osmosis and Diffusion (flow of solvent molecules)
(ii) Myopia and hypermetropia (cause of the defect)
(iii) Glycolysis and Kreb's cycle (Reaction site of the process in a cell)iv) artery and vein (Direction of blood flow)
(v) Aerobic and anaerobic respiration (End products of the process)
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