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When put in water why does lettuce or spinach become firm and crisp?
Wiki User
∙ 11y ago
Due to the process of osmosis, water moves through the selectively permeable membrane of the lettuce/spinach cells. Therefore, the lettuce/spinach becomes crisp.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoThis is caused by the movement of water from high concentration (the dish of cold water) to low (lettuce leaf). Because water wants to equalize the concentration, it will flow into the plant cells in the lettuce which causes the plant vacuole to swell. This in turn causes the turgor pressure in the plant to increase. The end result is a firm and crispy lettuce leaf ready to be eaten.
Wiki User
∙ 6y agoIt does this through osmosis. The water molecules diffuse through the partially permeable membrane of the lettuce, and refill the cells that lost water.
Wiki User
∙ 12y agoThe water is absorbed through the roots and distributed through the plant. The cells of the plant become plump because they are full of water and this makes the leaves crisp.
Wiki User
∙ 11y agoThe firmness or crispiness is caused by the plant cells being turgid, or full of water. Putting vegetables in water helps keep the cells full of water.
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Why does a wilted piece of lettuce crisp up in cold water?
wilted lettuce are in a plasmolysed condition,when they are placed in a cold water or hypotonic solution then water enters the leaves by thye process of endosmosis and the leaves becomes deplasmolysed and they become crisp.
Why are vegetables soaked in cold water?
It slows the vegetable's decomposition. On leafy plants like lettuce, turnips, celery, spinach and collards it rehydrates the leaf and makes it crisp. This is done before serving or before refrigeration.
What does tap water do to lettuce?
If you put the lettuce in fresh water there are more salts in the leaf than in the water, so the water will move back into the cells and make them rigid again, because the cells will swell. So if your lettuce in limp, laying it in water will make it crisp again.
What keeps lettuce from being wilted?
First of all...plant cells are bounded by a cell wall that can withstand the buildup water pressure. For example, lettuce is placed in a distilled water (pure water), they will be firm and crisp because water flows into the cells. As the water molecules flow into the cell, the plasma membrane begins to press against the cell wall. The bulidup of water pressure inside the cell is called turgor pressure, which causes the cell to become firm or turgid that lets it to be crisp.
Which fruit or vegetable contains most water?
Watermelon, grapes,Iceberg lettuce and spinach for starters. Ans tomatoes
If celery has gone limp how to make it crisp again?
put in water with some ice for a few minutes, and you can also do this with lettuce!
Is there any fact to dark green lettuce is more nutritious than light green lettuce?
Yes, actually - dark green vegetables (think kale and spinach) have more vitamins and minerals than the light green ones, which are mostly water (think iceberg lettuce).
What type of leafy green has the most nutrition?
Most of them have good nutritional value - except for lettuce - it's mainly water ! Spinach leaves, broccoli and kale are the best sources.
What is the Tagalog of water spinach?
Tagalog Translation of WATER SPINACH: kangkong
What is the common name for the water lettuce?
water lettuce
What do bunny really eat?
Carrots, lettuce, and hard boiled eggs. He is realy a great guy!
Why do lettuce go limp when left in the sun Is it because the lettuce cell release water from the vacuole - causing the lettuce to become limp?
yes. the water in the cell evaporates through the cell wall, removing the structure that keeps the cell in a rigid, fixed shape.
