kertas 2 pep percubaan spm perak 2012
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SULIT
MATA PELAJARAN
KERTAS
4551/2
BIOLOGI SPM
2
SKEMA JAWAPAN BAHAGIAN A
BIL CADANGAN JAWAPAN MARKAH CATATAN
1(a)(1) Mitochondrion
(11) PI P contain respiratory enzymeP2 P generate energy from cell respiration / oxidation
of glucoseP3 Energy use by the cells for activities
Maximum 2
marks
1(b)(1) PI Q contain genetic material / DNA / geneP2 which determine the type of protein synthesis by
the ribosome
P3 determine the characteristics inherited by theoffspring
Maximum 2
marks
(11) 46
1(c)(1) Ribosome
01) PI Ribosome synthesis polypeptide / protein moleculeP2 using amino acid (in the cytoplasm)P3 Based on the genetic code from DNA /which
carry by the mRNAP4 Proteinwill be sent to Golgi apparatus by rough
endoplasmic reticulum.
Maximum 3
marks
(Hi) PI Protein cannotbe sent to the Golgi apparatusP2 Protein cannot be modified/ processesP3 No enzyme extra cellular can be synthesis
Maximum 2
marks
2 (a)(I P :Chromatid/chromosomeQ: Centromere
(11) Prophase 1(iii) F Crossing over
E Exchange of genetic material occur//forming newgenetic composition 1 1
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