HKDSE Biology Assessment Framework 生物 考試評核大綱

MODE OF ASSESSMENT
The public assessment of Biology will consist of a public examination component and a school-based
assessment component as outlined in the following table:
Component Weighting Duration
Public Examination
Paper 1 Compulsory part of the curriculum 60%
2 hours
30 minutes
Paper 2 Elective part of the curriculum 20% 1 hour
School-based Assessment (SBA) 20%
PUBLIC EXAMINATION
Paper 1 comprises two sections: A and B. Section A consists of multiple-choice questions and
carries 18% of the subject mark. Section B includes short questions, structured questions and an
essay question, and it carries 42% of the subject mark. Candidates have to attempt all questions in
Paper 1.
Paper 2 consists of structured questions set on the four elective topics of the curriculum. Candidates
are to attempt questions from any two of the four electives. Paper 2 carries 20% of the subject mark.

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呼吸作用 Respiration

生物技巧呼吸作用,又稱為細胞呼吸(Cellular respiration) , 是一種在細胞內發生的化學反應, 這反應的目的是, 透過氧化作用/水解, 將糖份和氧氣, 在酶(enzyme)的作用下, 生成二氧化碳, 水和能量的過程


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