A-LevelBiologyCell structureOct/Nov 2015Paper 1 Q41 Mark
Lysosomes have a variety of different shapes and sizes, making them difficult to identify. What describes a lysosome?
Avesicle containing enzymes, enclosed by a double membrane, that is budded off the endoplasmic reticulum
Bvesicle containing hydrolytic enzymes and surrounded by a single membrane, found only in phagocytes
Cvesicle enclosed by a single membrane, containing several different hydrolytic enzymes that may act inside or outside the cell
Dvesicle surrounded by a double membrane, containing enzymes which can hydrolyse damaged organelles in a cell
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of cell structure within the Biologysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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