page 02 SECTION 1 — 20 marks Attempt ALL questions 1. SDS‑PAGE separates proteins by: A shape B size C charge D isoelectric point. 2. Which row in the table describes functions of compartments involved in the synthesis and transport of proteins? Compartment Smooth endoplasmic reticulum Rough endoplasmic reticulum Golgi apparatus A post‑translational modification lipid synthesis protein transport B lipid synthesis protein transport post‑translational modification C lipid synthesis post‑translational modification protein transport D post‑translational modification protein transport lipid synthesis

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Exam Specification Info
This question is part of the UK A-Level Biology syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
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