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The diagram shows a plant cell - Edexcel - GCSE Biology - Question 2 - 2014 - Paper 1
Question 2
The diagram shows a plant cell. (a) Complete the sentence by putting a cross (✗) in the box next to your answer. This plant cell is a A xylem vessel B phloem v... show full transcript
Worked Solution & Example Answer:The diagram shows a plant cell - Edexcel - GCSE Biology - Question 2 - 2014 - Paper 1
Step 1
Step 2
Explain how water moves from cell to cell in a leaf.
Answer
Water moves from cell to cell in a leaf primarily through a process called osmosis. Here are the key points of the process:
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Osmosis: Water moves through the semi-permeable cell membranes from areas of higher water concentration to areas of lower water concentration. This helps balance water levels between cells.
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Cell Structure: The arrangement of cells in the leaf, particularly in the spongy mesophyll, allows water to efficiently diffuse between cells, maintaining proper hydration and supporting photosynthesis.
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Transpiration: As water evaporates from the stomata (tiny openings on the leaf surface), it creates a negative pressure that pulls more water upward from the roots through the xylem, thus continuing the movement of water from cell to cell.