Figure 4 shows three cells - Edexcel - GCSE Biology - Question 2 - 2020 - Paper 1
Question 2
Figure 4 shows three cells.
(a) What is structure X?
A cell membrane
B cell wall
C cytoplasm
D nucleus
(b) Substances move into and out of cells.
How ... show full transcript
Worked Solution & Example Answer:Figure 4 shows three cells - Edexcel - GCSE Biology - Question 2 - 2020 - Paper 1
Step 1
What is structure X?
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Answer
Structure X, indicated in Figure 4, corresponds to option B: cell wall. This structure is commonly found in plant cells, providing rigidity and support.
Step 2
How does oxygen move into and out of cells?
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Answer
Oxygen primarily enters and exits cells through the process of C: diffusion. This is the movement of oxygen from an area of higher concentration outside the cell to an area of lower concentration inside the cell.
Step 3
Calculate the length of the image after this cell has been magnified 500 times.
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Answer
To find the length of the image after magnification, use the formula:
