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Biology B2

From Paper 7 (Biology), Higher
73 marks
A potato cylinder had a mass of 2.40 g. After 30 minutes in a sugar solution its mass was 2.64 g. Calculate the percentage change in mass and explain what this shows.
From Paper 7 (Biology), Higher
84 marks
Describe the stages of the cell cycle.
From Paper 7 (Biology), Higher
94 marks
Explain why the human circulatory system is described as a double circulation.
From Paper 7 (Biology), Higher
104 marks
Describe how water moves from the roots to the leaves in a plant.
Score 0 / 15 · 0 of 4 marked

This paper is written by Plasmo in the style of the OCR GCSE Combined Science exam. It is not a past paper and is not produced or endorsed by the exam board.

Biology B2 Exam Questions: OCR GCSE Combined Science | Plasmo