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TABLE OF CONTENTS

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Introduction 15

Paper 1 Level 5 exemplar and comments 16










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INTRODUCTION

The results of the first HKDSE Examination were released on 20 July 2012. To enhance the understanding of the standards of the HKDSE Examination, authentic samples of candidates scripts are selected to form this set of exemplars to illustrate the performance standards at different levels.

There are 3 papers in this subject. This set of exemplars is selected from candidates scripts of the written conventional papers to illustrate the typical performance standards at different levels. Paper 1 Section A comprises Multiple-choice (MC) questions while Paper 3 is the School-based Assessment. As candidates MC responses cannot illustrate well the performance standards and their SBA work only represents part of the assessment, exemplars have not been selected from these papers.

It is advisable to read this set of exemplars together with the question papers and the marking schemes in order to understand the requirements of the questions and the marking criteria. The question papers and the marking schemes will be published in the Examination Report and Question Papers for 2012 HKDSE which will be available for sale in October / November this year.

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Paper 1 Level 5 exemplar and comments

Comments

The candidates response shows very good knowledge and understanding of the key processes involved in photosynthesis and demonstrates an excellent ability in analysing and evaluating the given information from different perspectives. The ideas are effectively communicated in a logical and coherent way with accurate use of scientific terminology.

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Comments

The candidate shows sound knowledge of the digestion of fat and applies the concepts in the unfamiliar situations. He/she demonstrates a good understanding of the given investigation and gives a correct interpretation of the data given.

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Comments

The candidate has general knowledge and understanding of the key processes involved in photosynthesis. His/her response shows that he/she can relate some of the data to the knowledge learned. The cellular components containing the respective enzymes were missed out.

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Comments

The candidates responses show basic understanding of gaseous exchange in plants. He/she is able to describe the simple relationship shown in the graph but fails to elaborate on the importance of such a relationship.

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Comments

The candidate can identify the structure as a cell wall and makes the correct comparison, showing that he/she can handle simple information presented in a straightforward manner.

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Paper 2 Level 5 exemplar and comments (Question 1)

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Comments

The candidates response shows very good knowledge and understanding of how water content is regulated in the body. He/she can apply the knowledge to give a correct description and interpretation of the data given. The action of ADH is effectively communicated in a logical and coherent way with accurate use of scientific terminology.

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Comments

The candidate shows sound knowledge and understanding of aquatic habitats and the ability to apply the knowledge to the situation given in the question. The answers are clearly and logically presented. However, some explanations for the increases in fish species are left out.

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Comments

The candidate shows good knowledge and understanding of oxygen debt and basic understanding of temperature regulation. He/she is aware of the fact that heat is produced during exercise but fails to account for poor heat loss given the conditions in the questions.

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Comments

The candidates responses show basic knowledge and understanding of stem cell therapy and the associated bio- ethics. However, he/she fails to apply the knowledge to the situation given in the questions. Some answers are irrelevant to the questions.

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Comments

The candidate can recall elementary facts about bacteria growth but fails to provide explanations for the unfamiliar situations given in the questions.

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Exemplars and CommentsIntroductionPaper 1 Section BLevel 5 exemplar and commentsLevel 4 exemplar and commentsLevel 3 exemplar and commentsLevel 2 exemplar and commentsLevel 1 exemplar and comments

Paper 2Level 5 exemplar and commentsLevel 4 exemplar and commentsLevel 3 exemplar and commentsLevel 2 exemplar and commentsLevel 1 exemplar and comments

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