Which organelle is the site of protein synthesis in a cell?
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SPM Biology4551
2 papers140 marks3 h 45 min
What we predict comes up
From the syllabus weighting and how the papers are usually set. The papers below follow it.
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- Cell biology, membranes, enzymes and cell division16%Form 4 opens with cells, membranes, chemical composition, enzymes and division, and these feed many Paper 1 items plus two or three short Section A questions.
- Ecosystems and environmental sustainability16%Population sampling and pollution data give a Section A calculation and a Section B essay on sustainable development.
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Paper 1
1 h 15 min · 40 marks · Calculator allowed
- This paper consists of 40 questions.
- Answer all questions.
- Each question is followed by four options, A, B, C and D. Choose one answer only.
- Each question carries one mark.
Answer or mark a question and your score adds up here.
Answer all questions40 marks
Which structure is found in a palisade mesophyll cell but not in a human cheek cell?
A strip of potato tissue is weighed, placed in a sucrose solution for 30 minutes, then weighed again. Its mass has decreased. The sucrose solution is
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