Which structure is found in plant cells but not animal cells?
From Paper 7 (Biology), Higher
23 marks
An image of a cell is 18 mm long. The real length of the cell is 0.012 mm. Calculate the magnification.
From Paper 7 (Biology), Higher
34 marks
Explain why an enzyme stops working at high temperatures.
From Paper 7 (Biology), Higher
43 marks
Explain the role of bile in digestion.
From Paper 7 (Biology), Higher
53 marks
Compare aerobic and anaerobic respiration in muscles.
From Paper 7 (Biology), Higher
62 marks
Write the word equation for photosynthesis.
From Paper 7 (Biology), Higher
163 marks
Describe three differences between prokaryotic and eukaryotic cells.
From Paper 7 (Biology), Higher
173 marks
An image of a cell is 45 mm long. The real length of the cell is 0.03 mm. Calculate the magnification.
From Paper 7 (Biology), Higher
183 marks
In an investigation, 2.4 cm³ of oxygen was collected in 40 s from hydrogen peroxide broken down by catalase. Calculate the mean rate of reaction in cm³/s and name one variable to control.
From Paper 7 (Biology), Higher
191 mark
Which organ produces bile?
Score 0 / 26 · 0 of 10 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.