Some plant cells have connections through their cell walls through which they can communicate - VCE - SSCE Biology - Question 21 - 2007 - Paper 1
Question 21
Some plant cells have connections through their cell walls through which they can communicate. The following diagram includes a section of the cell walls of two plan... show full transcript
Worked Solution & Example Answer:Some plant cells have connections through their cell walls through which they can communicate - VCE - SSCE Biology - Question 21 - 2007 - Paper 1
Step 1
a) such cells lack a nucleus.
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Answer
This statement is not necessarily true. While many plant cells can be multinucleate, the presence or absence of a nucleus cannot be concluded definitively from the information provided. Thus, this option is not a reasonable conclusion.
Step 2
b) structure X is made of cellulose.
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Answer
Based on the context of the diagram showing plant cell walls, it is reasonable to conclude that structure X is made of cellulose. Plant cell walls are primarily composed of cellulose, so this statement is a valid conclusion.
Step 3
c) the cytosols of the two cells are isolated from each other.
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Answer
This conclusion is incorrect. The presence of plasmodesmata, which are channels that traverse the cell walls and allow for communication and transfer of materials between adjacent plant cells, suggests that the cytosols are not isolated from each other.
Step 4
d) material is able to pass from cell to cell without having to travel through a plasma membrane.
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Answer
This statement is valid. Plasmodesmata enable direct connections between the cytoplasm of adjacent cells, allowing materials to pass from one cell to another without the need to travel through the plasma membrane.
