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SMK AMINUDDIN BAKI, CHEMOR , PERAK MID-YEAR EXAMINATION BIOLOGY-PAPER 2 (2 HOURS) Name: Form : 4 Date : ___/ ___/ ___ Instruction: Answer ALL questions. SECTION A ( 50 Marks)- STRUCTURE 1. [ Rajah 1] An experiment on reaction of enzyme X on substrate at different temperature was conducted and the result is shown in Figure 1. Study the graph carefully and answer the following questions. 1

Bio Paper 2 Mid Year

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SMK AMINUDDIN BAKI, CHEMOR , PERAKMID-YEAR EXAMINATIONBIOLOGY-PAPER 2(2 HOURS)Name:Form : 4Date : ___/ ___/ ___Instrut!"n# Ans$%r ALL &u%st!"ns'SECTION A ( () M*r+s)- STRUCTURE1. [ Rajah 1]Anexperiment on reaction ofenzyme X on!"trate at#i$erent temperat!re %acon#!cte# an# the re!&t i ho%n in Fi'!re 1. (t!#y the 'raph caref!&&y an# an%erthe fo&&o%in' )!etion.[Satueksperimenmengenai tindakbalasenzimXkeatassubstrat padasuhu yang berlainan telah dikaji dan keputusannya ditunjukkan dalamRajah1. Kaji graf dengan teliti dan kemudian jawab soalan-soalan berikut*a+ ,ae#onthe'raph- tatethetimeta.enfor eachof thec!r/eto"ecomecontant at thee temperat!re: [0 1][ !erdasarkan graf" nyatakan masa yang diambil untuk setiap garis lenkungmenjadi malar pada suhu berikut :1*i+ 23 4 : _____________*ii+ 05 4: ______________*iii+ 67 4: _______________*"+*i+ (tate the "et temperat!re for the reaction of enzyme X %ith the !"trate. [11] [#ytakan suhu yang paling sesuaiuntuk tindakan enzim X dengansubstrat.____________________________________________________________________________*ii+ 8i/e a reaon for yo!r an%er in *"+*i+ [1 1] [!erikan sebab bagi jawapan anda di $b%$i%._____________________________________________________________________________*c+ 8i/e a reaon %hy the c!r/e &a"e&e# 23 4 an# 05 4 "ecome contant at the ame&e/e&. [1 1] [!erikan satu sebab mengapa garis lengkung berlabel &' ( dan )* (menjadi malar padaparas yang sama.______________________________________________________________________________ *#+ 8i/e a reaon %hy the c!r/e &a"e&e# 67 4 i contant at a &o%er &e/e& compare#to the c!r/e &a"e&e#23 4 an# 05 4. [2 1] [ !erikan satu sebab mengapa lengkung yang berlabel+, ( menjadimalar pada paras yanglebih rendah berbanding lengkung berlabel &' ( dan )* (._________________________________________________________________________________________________________________________________________________________________________________________________________________________________________*e+ Name an enzyme that i in/o&/e# in the #i'etion of the fo&&o%in' !"trate: [01][#amakan satu enzim yang terlibat dalam pen-ernaan substrat berikut .2*i+ (tarch / Kanji : ___________________ *ii+ Fat / /emak : ___________________*iii+ 9rotein : _______________________*f+ Name the pro#!ct forme# after the #i'etion of the fo&&o%in' !"trate. [0 1][ #amakan produkyang terhasil selepas pen-ernaan substrat berikut.*i+ (tarch / Kanji : ___________________ *ii+ Fat / /emak : ___________________*iii+ 9rotein : _______________________2.: ;1 NDia'ram 2[Rajah &Dia'ram 2 ho% an Amoeba sp .[ Rajah & menunjukkan seekor 0moeba sp .*a+*i+ Name tr!ct!re &a"e&e# :. [1 1][[#amakan struktur berlabel K.______________________________________________________________________________*ii+