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What determines the direction of net movement across a cellmembrane?
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When we carry an object across a room without lifting it or setting it down we do no physical work on it?
That's correct. For work to be done, the force must have a component in the direction of the movement.
How do racing car designers combat the effect of friction?
We can define frictions as the Resistance to the movement of one body in relation to another body with which is in contact. If we try to slide a wooden block across a table then friction acts in the opposite direction to the movement of the block.
What determines the pressure on the low pressure side of the system?
temp of inbound air across a coil
The apparent movement of an object across a background when observed from two different places is called an?
parallex
Why the wood is not good conductor?
A conductor is something that allows for the movement of tiny charge carrying particles called electrons across the surface. The specific elements that make up wood and the way that its molecules are arranged don't allow for ease of movement of electrons across its surface.
What begins to stretch across the cell during mitosis?
the cellmembrane?
What determineds the direction in which a substance diffuses across a membrane?
Concentration gradient determines the direction of flow.
What determines the direction in which air masses flow across the US?
the gulf of mexico
The movement of the water across a membrane is termed?
The term used is osmosis. the direction of movement across the membrane is dependent on the concentration of solutes (known as the solute potential) which directly effects the osmotic potential.
What is the direction of movement of various substances across the cell membrane for the cell's life activities?
excretion, transport and respiration
State one possible reason a certain substance cannot pass across a cellmembrane?
One possible reason behind the inability of a certain substances to pass across a cell membrane is molecule size.
Why does the rotation of the motor reversed when change the polarity across the main winding coil?
When changing the auxilary face winding connection the current flow in the winding is changed so that the rotating emf direction is changed . Thats why the motor rotates in opposite direction.
The movement of water across a membrane is trem?
The movement of water across a membrane is called osmosis.
What type of waves move across the direction of travel?
Transverse waves will move across the direction of travel.
When we carry an object across a room without lifting it or setting it down we do no physical work on it?
That's correct. For work to be done, the force must have a component in the direction of the movement.
Which is a factor that determies whether a mole can cross a cell membrane?
Lipid solubility determines if it will diffuse across. The presence of specific protein carrier molecules determines if it will be transported across the membrane.
What determines the direction in a substance diffuses across a membrane?
The concentration gradient determines the direction in which a substance diffuses across a membrane. The concentration gradient is a measure of how the concentration of a substance changes from one place to another.
