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JUJ Pahang SPM 2014 Biology K3 Set 2 Skema

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Sumber : http://iamchampion.blogspot.com/ Manfaatkan sebaik2nya Soalan JUJ Pahang Biologi SPM 2014 untuk membantu peningkatan optimum pencapaian calon dalam peperiksaan SPM 2014 Selamat berjaya Calon SPM 2014
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   SKEMA PEMARKAHAN PRAKTIS BESTARI JUJ PAHANG 2014 (SET 2 ) 4551/3 1 SKEMA PEMARKAHAN PRAKTIS BESTARI JUJ PAHANG 2014   Question 1 No Mark Scheme Score KB0603  –   Measuring Using Number 1(a) Able to record all 3 readings for the time taken for salt solution to move from mark A to mark B.  Number of triangles surfaces Time taken/min 4 42 8 28 16 13 3 Able to record any 2 readings  correctly .   2 Able to record any 1 reading  correctly.   1  No response or one reading 0 KB0601 - Observation 1 (b)(i) Able to state two correct observations based on the following aspect : P1 : Number of triangles surfaces P2 : T ime taken for salt solution to move from mark A to mark B Sample answer 1.   When the number of triangles surfaces is 4, the time taken for salt solution to move from mark A to mark B is 42 minutes. 2.   When the number of triangles surfaces is 16, the time taken for salt solution to move from mark A to mark B is 13 minutes. 3.   Increase the number of triangles surfaces increase the time taken for salt solution to move from mark A to mark B . 3 Able to state one correct observation and one inaccurate observation or able to state two inaccurate observation. Sample Answer: 1.   When the number of triangles surfaces is 4, the time taken for salt solution to move from mark A to mark B is the long. 2   SKEMA PEMARKAHAN PRAKTIS BESTARI JUJ PAHANG 2014 (SET 2 ) 4551/3 2 SKEMA PEMARKAHAN PRAKTIS BESTARI JUJ PAHANG 2014  2.   When the number of triangles surfaces is 16, the time taken for salt solution to move from mark A to mark B is shortest. 3.   The number of triangles surfaces affects / influence the time taken for salt solution to move from mark A to mark B. Able to state one correct observation or able to state two observations at idea level. Sample Answer: 1.   Time taken for Time taken for salt solution to move from mark A to mark B are 42 min / 28 min / 13 min. 2.   Time taken for Time taken for salt solution to move from mark A to mark B increased / decreased 3.   Time taken for Time taken for salt solution to move from mark A to mark B change. 1  No response or wrong response. 0 Scoring Correct Inaccurate Idea Wrong Score 2 - - - 3 1 1 - - 2 - 2 - - 1 - 1 - 1 - - 2 - 1 - - 1 - 1 1 - - 1 - 1 0 - - 1 1   SKEMA PEMARKAHAN PRAKTIS BESTARI JUJ PAHANG 2014 (SET 2 ) 4551/3 3 SKEMA PEMARKAHAN PRAKTIS BESTARI JUJ PAHANG 2014   KB0604 - Making inference 1(b)(ii)   Able to state two inferences correctly based on the following aspect: P1 : surface area P2 : diffusion of distilled water / rate of diffusion Sample answer 1.   (4 triangular) increase / more the total surface area (of the  potato block), increase rate of diffusion / more ( water will diffuse into the potato block. 2.   (16 triangular) decrease total surface area of the potato block is the decrerase, rate of diffusion of (water) into the potato  block 3.   The surface area of the potato block is the lowest/highest, rate of distilled water diffusion is lowest/highest. 3 Able to make one correct inferences and one inaccurate inference Sample answers: 1.   The rate of diffusion is highest / lowest. 2.   The total surfaces area is the highest / lowest. 2 Able to state one correct inference and one inference at idea level. Sample Answer: 1.   Water diffuse into potato block 1  No response OR wrong response. Scoring: Score Correct Inaccurate Idea Wrong 3 2 - - - 2 1 1 - - - 2 - - 1 1 - 1 - - - 2 - - 1 1 - 0 - 1 - 1 - - 1 1   SKEMA PEMARKAHAN PRAKTIS BESTARI JUJ PAHANG 2014 (SET 2 ) 4551/3 4 SKEMA PEMARKAHAN PRAKTIS BESTARI JUJ PAHANG 2014   KB0610-Controlling variables 1(c) Able to state all 3 variables and the 3 methods to handle the variable correctly. Sample Answer : Variables Method to handle the variable correctly Manipulated variable  Number of triangles surfaces / Total surface area Use different number of triangles (surfaces which are 4, 8, 16 )/ Change the number of triangles surfaces that are 4, 8, 16. Responding variable Duration/ Time taken for salt solution to move from mark A to mark B/ Rate of Diffusion Measure and record  the time taken for salt solution to move from mark A to mark B by using stopwatch. Calculate the rate of diffusion by using the formula: Distance from A to B , cm Time taken for salt solution to move from mark A to mark B, min Constant variable Concentration of salt solution / Distance from A to B / Size of potato  block Fix the same concentration of salt solution that is 10%. / Fix the same distance from A to B which is 3 cm / used the same size of potato block is 5cm x 7cm All 6 ticks 3 Able to state 3- 5 ticks 2 Able to state 1-2 ticks 1 No response or incorrect response 0
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