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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 osmosis. As water evaporates from the stomata, it creates a negative pressure that pulls more water up from the roots through the xylem vessels. This movement of water is facilitated by the concentration gradient: water moves from areas of higher concentration in the leaf cells to areas of lower concentration in adjacent cells. Additionally, water can also move laterally between cells through plasmodesmata, small channels that connect the cytoplasm of adjacent cells, allowing for efficient transport and maintaining hydration in leaf tissues.