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our cells are surrounded by a cell membrane that is a lipid bilayer. this means that the hydrophilic heads, like water, are pointed towards the inside of the cell and the cells' exteriors. this allows polar molecules to move through the membrane and be dissolved within the membrane. the hydrophobic tails of this lipic bilayer are pointed towards eachother. these cannot be in contact with water or nothing will dissolve or be able to pass through them.
O==O, the circles are the hydrophilic heads and the lines are the hydrophobic tails.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoa molecule with opposite charges on opposite sides.
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What is a relatively weak bond between polar molecules?
A polar molecule is positive on one end and negative on the opposite end. A hydrogen bond is a special attraction between polar molecules, a weak bond.
Are non-polar molecules more attracted to other non-polar molecules or polar molecules?
Non-polar molecules are more attracted to other non-polar molecules.
Is water composed of polar molecules?
Nonpolar Solvent - A solvent (from the Latin solvere, "loosen") is a liquid, solid, or gas that dissolves another solid, liquid, or gaseous.....
What property do water and hydrophilic molecules share?
Both are polar. Explaining chemical polarity kind of surpasses the scope of this question.
Lipis are what molecules because they have no negative and positive molecules?
Polar?
What are water molecules?
Water has a polar molecule with the chemical formula H2O.
What is a relatively weak bond between polar molecules?
A polar molecule is positive on one end and negative on the opposite end. A hydrogen bond is a special attraction between polar molecules, a weak bond.
What chemical bond is involved with the formation of water molecules?
a polar covalent bond
Is it true that hydrogen bond is a weak chemical attraction between polar molecules?
No
What type of chemical bond must be present for must chemists to define molecules?
A covalent bond, (polar or non-polar)
Are non-polar molecules more attracted to other non-polar molecules or polar molecules?
Non-polar molecules are more attracted to other non-polar molecules.
Which of these molecules is polar?
Which of these molecules is polar
Polar molecules behave as though they?
Polar molecules have charges that non-polar molecules do not have. It is the reason why non-polar molecules can move through the lipid bilayer quicker than the polar molecules.
Why do oil and water hate each other?
Water is polar while oils are non-polar. Molecules that are polar will mix with other polar molecules, and non-polar molecules will mix with other non-polar molecules. Polar and non-polar molecules will not mix.
Is ascorbic acid polar or nonpolar?
Polar. I just answered this question on Mastering chemistry.
What do dipole dipole forces do?
Hold polar molecules together
Is water composed of polar molecules?
Nonpolar Solvent - A solvent (from the Latin solvere, "loosen") is a liquid, solid, or gas that dissolves another solid, liquid, or gaseous.....
