9700/52AS A Level -Mark SchemeMarch 2023PRE-STANDARDISATIONCambridgeCambridge Assessment International EducationCambridge International Advanced Subsidiary and Advanced LevelBiology9700/52Paper 52 Planning,Analysis and EvaluationFebruary/March 2023Maximum Mark:30PRE-STANDARDISATION MARK SCHEMEPage 1 of 129700/52AS A Level-Mark SchemeMarch 2023PRE-STANDARDISATIONCambridge Assessment International Education-Generic Marking PrinciplesThese general marking principles must be applied by all examiners when marking candidate answers.They should be applied alongside thespecific content of the mark scheme or generic level descriptors for a question.Each question paper and mark scheme will also comply with thesemarking principles.GENERIC MARKING PRINCIPLE 1:Marks must be awarded in line with:the specific content of the mark scheme or the generic level descriptors for the questionthe specific skills defined in the mark scheme or in the generic level descriptors for the questionthe standard of response required by a candidate as exemplified by the standardisation scripts.GENERIC MARKING PRINCIPLE 2:Marks awarded are always whole marks(not half marks,or other fractions).GENERIC MARKING PRINCIPLE 3:Marks must be awarded positively:marks are awarded for correct/valid answers,as defined in the mark scheme.However,credit is given for valid answers which go beyond thescope of the syllabus and mark scheme,referring to your Team Leader as appropriatemarks are awarded when candidates clearly demonstrate what they know and can domarks are not deducted for omissionsanswers should only be judged on the quality of spelling,punctuation and grammar when these features are specifically assessed by thequestion as indicated by the mark scheme.The meaning,however,should be unambiguous.GENERIC MARKING PRINCIPLE 4:Rules must be applied consistently,e.g.in situations where candidates have not followed instructions or in the application of generic leveldescriptors.Page 2 of 129700/52AS A Level-Mark SchemeMarch 2023PRE-STANDARDISATIONGENERIC MARKING PRINCIPLE 5:Marks should be awarded using the full range of marks defined in the mark scheme for the question (however;the use of the full mark range maybe limited according to the quality of the candidate responses seen).GENERIC MARKING PRINCIPLE 6:Marks awarded are based solely on the requirements as defined in the mark scheme.Marks should not be awarded with grade thresholds or gradedescriptors in mind.Science-Specific Marking PrinciplesExaminers should consider the context and scientific use of any keywords when awarding marks.Although keywords may be present,marksshould not be awarded if the keywords are used incorrectly.2The examiner should not choose between contradictory statements given in the same question part,and credit should not be awarded for anycorrect statement that is contradicted within the same question part.Wrong science that is irrelevant to the question should be ignored.3Although spellings do not have to be correct,spellings of syllabus terms must allow for clear and unambiguous separation from other syllabusterms with which they may be confused(e.g.ethane/ethene,glucagon/glycogen,refraction/reflection).4The error carried forward(ecf)principle should be applied,where appropriate.If an incorrect answer is subsequently used in a scientificallycorrect way,the candidate should be awarded these subsequent marking points.Further guidance will be included in the mark scheme wherenecessary and any exceptions to this general principle will be noted.5'List rule'guidance (see examples below)For questions that require n responses (e.g.State two reasons...):The response should be read as continuous prose,even when numbered answer spaces are provided.Any response marked ignore in the mark scheme should not count towards n.Incorrect responses should not be awarded credit but will still count towards n.Read the entire response to check for any responses that contradict those that would otherwise be credited.Credit should not be awardedfor any responses that are contradicted within the rest of the response.Where two responses contradict one another,this should betreated as a single incorrect response.Non-contradictory responses after the first n responses may be ignored even if they include incorrect science.Page 3 of 12