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The intrinsic properties of the hydrophilic/hydrophobic/hydrophilic double layer of the membrane gives it support, due to the hydrophobic effect.
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When vesicles from the Golgi apparatus deliver their contents to the exterior of the cell they add their membranes to the plasma membrane The plasma membrane does not increase in size because?
The membrane is continually being lost from the plasma membrane by endocytosis
What phase of matter comes after gases if you add energy?
There are four phases of matter. From lowest enthalpy to highest, they are solid, liquid, gas and plasma. Going from gas to plasma is called ionization and the reverse is recombination.
How do small molecules pass through the cell membrane?
There are three types of transport for molecules across the cell membrane. 1 - Diffusion - Molecules move from an area of high concentration to an area of low concentration 2 - Osmosis - same idea as diffusion, but refers to the movement of WATER across a selectively permeable membrane. How can you change water concentration? Add a solute. If you have 2 250 ml beakers, connected and divided by a selectively permeable membrane, and one beaker contains a salt solution, the salt solution is "hypotonic" (hypo- less, tonic - water) to the water filled beaker. One will see a migration of water into the salt solution beaker. BOTH diffusion and osmosis rely on concentration gradients to perform their jobs. They always want "equilibrium" between both sides of the membrane. 3 - Active transport - Proteins embedded in the cell membrane move large molecules through the cell membrane or AGAINST the concentration gradient. The size one is obvious; If it's really big, it won't permeate the membrane. As for the concentration gradient, this means that it moves a molecule INTO the area with and already HIGHER concentration. If this happens with say... H+ molecules, it creates a potential difference - ie - Voltage across the membrane. Cellular respiration counts on this process to create ATP/Energy for the cell.
What happens when you add kinetic energy to a solid?
When you add kinetic energy to a solid the molecules won't move
Is the cell membrane a complex combination of carbohydrates and lipids?
Yes, if you add proteins to the list.
When vesicles from the Golgi apparatus deliver their contents to the exterior of the cell they add their membranes to the plasma membrane. The plasma membrane does not increase in size because?
The membrane is continually being lost from the plasma membrane by endocytosis
When vesicles from the Golgi apparatus deliver their contents to the exterior of the cell they add their membranes to the plasma membrane The plasma membrane does not increase in size because?
The membrane is continually being lost from the plasma membrane by endocytosis
Are a cell membrane's chemicals locked into place?
Any biological cell membrane or plasma membrane is made up of phospholipid bi-layer, cholesterol, small amounts of glycolipids and specialized proteins. Some components can move little bit around their position but others such as cholesterol add to the rigidity of the membrane. Lipid rafts are also immovable regions of the membrane.
Are phospholipid molecules found in the cell membrane?
Yes. A specific example, peanuts are considered Brain Food because they contain phospholipids, and this indicates that phospholipids are needed for healthy brain cell membrane function. Anyone with more polish to add to this?
What phase of matter comes after gasses if you add energy?
If you add energy to gas, the next phase that you get is called plasma. In a plasma, the atoms have broken apart, and you have a mixture of sub-atomic particles that are not organized into atoms. Plasma is the highest energy phase; even if you keep adding energy, all you will get is hotter plasma.
How do you deconstruct Ionized Plasma to its gas form?
Add electrons.
What happens if you add an atom to another atom?
it becomes a molecule. when you add molecules and atoms, they form matter.
How could plasma become a gas?
The simple way to convert compressed gas to plasma is by heating it or by electrifying it. A plasma is atoms from which electrons are stripped, and anything can be converted to plasma by ripping off its electrons. By superheating gas to give the electrons so much energy that they leave the atoms, or by applying high voltage to tear electrons from atoms, the gas can be converted to a plasma.
What is the function of the cholesterol molecules shown in transparency?
When you hear the word cholesterol, the first thing you probably think of is that it is bad. However, cholesterol is actually a very important component of cell membranes. Cholesterol molecules are made up of four rings of hydrogen and carbon atoms. They are hydrophobic and are found among the hydrophobic tails in the lipid bi-layer. Cholesterol molecules are important for maintaining the consistency of the cell membrane. They strengthen the membrane by preventing some small molecules from crossing it. Cholesterol molecules also keep the phosphoric tails from coming into contact and solidifying. This ensures that the cell membrane stays fluid and flexiblePLEASE ADD MORE
What happens to acetone molecules when you add heat to a breaker of liquid acetone?
Acetone molecules evaporate when you add heat to a beaker of liquid acetone.
Example of plasma?
Plasma is even on earth. Examples are the northern lights, lightning,and core,or magma. Plasma is also in neon light tubes like for advertising. Just to add plasma is also in stars, the sun, and black holes.
Why do some molecules begin sticking together when you add in more molecules?
Consecutive links between these molecules are formed: polymerization occur.
