It is a misconception that plant tissues have more percentage of water.
Plant Examples : 1) Fleshy fruits , sugarcane and actively metabolizing tissues have over 80% water.
2) Seeds, dead tissue like Xylem walls ( Do not consider water running thro' xylem) and other non functional tissues has very very low % of water. In seed it is almost nil other wise they would not remain dormant.
Animal Examples- 1) Aquatic animals have a large percentage of water in their almost all body parts.
2) Blood ; which is an animal tissue has more than 80% water.
3) most of the muscles have good amount of water
4) Bones , hair and nails have almost nil or very insignificant amount of water.
So it depends upon what type of tissue is it and what function it performs ; as wter is essential for metabolic activities.
2007-04-12 04:05:05
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answer #1
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answered by Anonymous
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The main reason for the higher water content is that plant cells contain a large vacuole that occupies most of the cell space. The vacuole is mostly water (see photo and diagrams in links below), few proteins or carbohydrates to add to the dry weight. It really is that simple...
2007-04-08 16:39:01
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answer #2
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answered by Jerry C 3
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Yes, plant cells contain a large vacuole full of cell sap, so this gives them a high percentage of water. The water pressure inside the cell is necessary for most plants to support themselves. Think of the way a plant wilts when it doesn't have enough water.
2007-04-08 18:26:11
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answer #3
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answered by ecolink 7
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To sustain the leaf (and body) tension to stay straight.
2007-04-08 14:37:33
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answer #4
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answered by Lis 3
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Because plants dont use to moove.
2007-04-08 15:40:41
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answer #5
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answered by Anonymous
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