A plant cell that is in a concentrated solution and has lost water and wilted
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15
Which part of a plant cell is partially permeable and which part is fully permeable?
Cell membrane is partially cell wall is fully
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20
Rather than bursting in pure water a plant cell becomes turgid. Explain
The cytoplasm presses out against the cell membrane (like in an animal cell) but the cell wall prevents the cell from bursting. Instead it blows up like a tire
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15
Where Protein is synthesized within the cell
Ribosomes, Rough Endoplasmic Reticulum
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15
Does adding water to a solution make it more concentrated or more dilute?
Dilute
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15
Name three things that increase the rate of diffusion
increase in SA/V ratio, increase in temp, increase in concentration gradient, decrease in distance, decrease in size
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5
A concentrated solution has a ______ water potential
Low
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20
What is plasmolysis?
When a plant cell is in a concentrated solution and loses so much water that the cell membrane pulls away from the cell wall. This usually kills the cell.
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15
What happens if you put an animal cell in pure water? Explain
The cell will burst. The water will move by osmosis into the animal cell and the cell will burst because animal cells do not have cell walls
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10
Particles move ____________ concentration gradients (up or down)
Down
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10
Diffusion is the net movement from a _________ concentration to a __________ concentration
High, low
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15
What is Osmosis
Diffusion of water molecules in a situation where water can pass through a partially permeable membrane but solute cannot