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Soluble substances can evaporate with water if they have a lower boiling point than water. When water evaporates, it leaves behind the soluble substances dissolved in it. However, not all soluble substances evaporate at the same rate as water.
The use of a second messenger
Substances that are polar or ionic in nature are generally soluble in water, as water is a polar solvent. Nonpolar substances, such as fats and oils, are typically insoluble in water but may dissolve in nonpolar solvents like oil or hexane.
Fat-soluble substances like ether can easily cross the lipid-rich cell membrane due to their ability to dissolve in lipids, allowing them to quickly reach their target inside the cell. In contrast, water-soluble substances like salt cannot easily pass through the lipid membrane and may require a specialized transport mechanism, slowing down their entry into the cell and affecting their overall speed of action.
Lipid
Salts are soluble. The phospholipid bilayer membrane of cell walls are permeable to water and thus allow water and water-soluble substances, like salts, diffuse through.
Iodine is not soluble in water because iodine is nonpolar and water is polar. According to the "Like dissolve like" expression, nonpolar substances are soluble with nonpolar substances and polar substances are soluble with polar substances, but nonpolar substances are not soluble with polar substances.
Soluble substances can evaporate with water if they have a lower boiling point than water. When water evaporates, it leaves behind the soluble substances dissolved in it. However, not all soluble substances evaporate at the same rate as water.
the xylem transports water and the phloem transports organic substances.
The use of a second messenger
No, it is not soluble in water. To be soluble in water means that the object can dissolve in water. Examples of soluble substances include salt, sugar and so on, while insoluble substances include oil.
Alkaline substances are generally not soluble in water, but they may be soluble in other solvents depending on their chemical composition. Alkaline substances often form salts that are soluble in water.
excess water and other water soluble substances ......
water
salt
Substances that are polar or ionic in nature are generally soluble in water, as water is a polar solvent. Nonpolar substances, such as fats and oils, are typically insoluble in water but may dissolve in nonpolar solvents like oil or hexane.
Simple diffusion - High concentration to low concentration, no energy required osmosis - Movement of water across a membrane, no energy required facilitated diffusion - Movement of substances, protein's are used to help move the substances across the membrane. There are very basic summaries of each.