(www.entrance-exam.net)-icse class x biology sample paper 4

8/10/2019 (Www.entrance-exam.net)-ICSE Class X Biology Sample Paper 4

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Biology Question Paper

2003General Instructions

1. Attempt all questions from Section I and any four questions from Section II.

2. The intended marks for questions or parts of questions are given in brackets.SECTION I (40 ar!s"

#tte$pt all %uestions &ro$ t'is Section

Question )

(a) Name the following: [8]

i. The genetic constitution of an organism.**

ii. The tissue responsible for the ascent of sap in plants.iii. The part of the ee responsible for its shape.

i!. The part of the chloroplast where the "ar# reaction of photosnthesis ta#es place.

!. The #in" of animal tissue foun" lining the respirator organs.

!i. The glan" in the s#in that secretes sebum. **!ii. The pressure which is responsible for the mo!ement of water molecules across the

cortical cells of the root.

!iii. The bloo" !essel which carries o$genate" bloo" to the li!er.(b) %i!en below in the bo$ are a set of 22 biological terms. &f these' 18 can be paire"

into matching pairs. &f the nine pairs' one has been "one for ou as an e$ample. rite

out the remaining 8 matching pairs. Number the pairs ma"e b ou as 1 to 8. [8]+ell wall' ,eo$ ribonucleic "al' Neurotransmitter' -accine' ntibiotic' ea#ene"

microbes' /elanin' 0pinal cor"' "ipose tissue' +ellulose' +hromosome' "enosine

triphosphate' Neuron' 0ubcutaneous laer' enicillin' nerg molecule' /alphigian laer'

3sol' 3i!er' cetlcholine' 4i"ne' 5aemophilia.$ample: "enosine triphosphate energ molecule.

(c) There are fi!e groups gi!en below with four e$amples in each. 6n each group' there is

one e$ample which "oes not fit into the categor. 7or each of these groups write "ownthe categor of the group an" i"entif the o"" one as shown in the e$ample below: [8]

i. ,iplococcus' 0almonella tphi' lasmo"ium' -ibrio cholera.

ii. "renal' 3i!er' Throi"' ituitar.iii. +oughing' 0neeing' ating' 9lin#ing.

i!. +orpus luteum' +orpus callosum' ons' +erebellum.

!. 0ulphur "io$i"e' +arbon mono$i"e' &$gen' Nitrogen "io$i"e. 0l. No (i) has been "one for ou as an e$ample. $ample 0l. No. +ategor &"" one (i) ,isease

causing bacteria lasmo"ium.

(") %i!e the technical terms for the following: [8]

i. 3oss of water in the form of water "roplets from the margin of lea!es.ii. statistical stu" of the human population of a region.

iii. ir breathe" in an" out "uring uiet normal breathing.

i!. /o!ement of 9+ s out of capillar walls at the site of the in;ur.!. The perio" of intrauterine "e!elopment of the embro.

!i. colourless plasti" in the ctoplasm of plant cells aroun" which starch collects.

!ii. roteins pro"uce" in the bloo" to fight an" "estro harmful microbes.!iii. The phase of contraction of the chambers of the heart.

(e) %i!en below is an incomplete table relating to certain structures foun" in the human

bo"' their location an" function. 0tu" the same an" then gi!e the appropriate answer in



terms of structure' location an" function' for the blan#s numbere" 1 to 8: [8]

0tructure 3ocation 7unction

piglottis...<...

...=...

>ellow spot

...1...

...?...

the glan"s on top of

the #i"nes

...@...

...2...insulates the $on

...A...

...8...

SECTION II (40 ar!s"

#ns*er any &our %uestions &ro$ t'is section

Question 2

(a) %i!en alongsi"e is the "iagram of a part of the human ear. 0tu" the same an" thenanswer the uestions that follow: [=]

i. %i!e the biological term for /alleus' 6ncus an" 0tapes.

ii. Name the parts labelle" ' 9 an" + in the "iagram.iii. 0tate the functions of the parts labelle" an" 9.

i!. Name the au"io receptor region present in the part labelle" .

(b) health croton plant bearing !ariegate" lea!es was #ept in a "ar# cupboar" to

"estarch it after which it was place" in sunlight for a few hours. &ne of the lea!es wasthen pluc#e" an" an outline of the leaf mar#ing the green an" the nonBgreen regions was

"rawn. The leaf was then teste" for starch. Csing the abo!e information' answer the

following uestions: [=]i. 0tate the aim of the abo!e e$periment.

ii. Name the chemical use" for testing the presence of starch.

iii. h is the leaf boile" in water an" alcohol before testing for the presence of starchD

i!. hat change is seen on the leaf after the starch testD

!. %i!e the chemical euation to represent the process of starch formation in plants.

Question 3

(a) %i!en below is the "iagram of an e$perimental set up to stu" the process of

transpiration in plants. 0tu" the same an" then answer the uestions that follow: [=]



i. hat is the colour of "r cobalt chlori"e paperD

ii. 6s the e$perimental leaf a monocot or a "icotD %i!e a reason to support our

answer.iii. h are glass sli"es place" o!er the "r cobalt chlori"e papersD

i!. fter about half an hour what change' if an' woul" ou e$pect to fin" in the

cobalt chlori"e paper place" on the "orsal an" !entral si"es of the leaf D %i!e areason to support our answer.

!. ,efine the term transpiration.

i. ,raw a neat "iagram of a single /alphigian corpuscle an" label the following parts:

%lomerulus' 9owmans capsule' fferent arteriole' an" fferent arteriole.

ii. Name an" "efine the process that occurs in the glomerulus.

Question 4

(a) [=]

i. 7rom where to where "o the following bloo" !essels carr bloo"D

1. 5epatic !ein. 2. 5epatic portal !ein.ii. 0tate an four ma;or acti!ities of the Ee" +ross 0ociet.

iii. ,efine birth rate.

(b) ,ifferentiate between an fi!e of the following: [=]i. 9loo" plasma an" serum.

ii. ntiseptic an" "isinfectant.

iii. +atabolism an" anabolism.i!. leural flui" an" pericar"ial flui".

!. erobic respiration an" anaerobic respiration.

!i. 0tructure of the sperm an" the structure of the o!um.

Question +

(a) %i!en below is the outline of the cross section of the male repro"ucti!e sstem:[=]

i. +op the outline on to our answer sheet in pencil an" label the following partstestis'

epi"i"mis' seminal !esicles' !as "eference.ii. Name the hormone pro"uce" b the testis.

iii. h are sperms pro"uce" in large numbersD

i!. 0tate the function of the seminal !esicles.(b) ,efine the following terms' gi!ing one e$ample of each: [=]

i. lleles**

ii. 5ormoneiii. $ocrine glan"

i!. cti!e transport

!. %aseous pollutant.

Question ,

(a) The "iagram below represents a certain categor of bloo" !essels showing the role of

a special structure in their walls: [A]



i. Name the #in" of bloo" !essels shown.ii. Name the structure shown insi"e the bloo" !essels.

iii. ,escribe the role of these structures.

i!. re these structures present in an other #in" of bloo" !esselD 6f so' name it.!. Towar"s which si"e of the figure (top or bottom) is the heart locate"D

(b) [=]

i. hat are the age restrictions for marriage b law for bos an" girls in 6n"iaD

ii. Name two surgical techniues (one for the human male an" another for the humanfemale) that can be use" to pre!ent pregnanc in the female.

iii. %i!e two a"!antages of a small famil.

Question -

(a) %i!en below is a "iagram representing a stage "uring mitotic cell "i!ision in an

animal cell.** [=]

i. 6"entif the abo!e stage. %i!e a reason to support our answer.

ii. Name the cell organelle that forms the aster.iii. Name the parts labelle" 1' 2 an" <.

i!. Name the stage that follows this stage of mitosis. 5ow can this stage be

i"entifie"D!. /ention two points of "ifference between mitosis an" meiosis with regar" to:

1. The number of "aughter cells forme". 2. The chromosome number in the

"aughter cells.(b) %i!e one reason for each of the following: [=]

i. ilte" lettuce lea!es " #ept in col" water become crisp.

ii. 6t is a"!isable not to sleep un"er a tree at night.iii. Crine is slightl thic#er in summer than in winter.i!. rthroctes are biconca!e "iscs an" lac# mitochon"ria.

!. Noise is regar"e" as unwante" soun".

(www.entrance-exam.net)-icse class x biology sample paper 4

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