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Would a substance that decreases membrane permeability to sodium increase or decrease the generating of a nerve impulse?
A substance that decreases membrane permeability to sodium would decrease the generation of a nerve impulse. This is because sodium ions play a crucial role in depolarizing the membrane and initiating nerve impulses. By reducing sodium influx into the cell, the ability of the neuron to generate an action potential would be diminished.
What is called the reappearance of excess dissolved substance from the solution on cooling?
Crystallysation,solution,filtrate,solvent
What happens to boiling point above sea level?
As you go above sea level, the atmospheric pressure decreases, and so the boiling point also decreases to below 100ºC.
What is the trend for freezing point?
As pressure increases, the freezing point of a substance generally decreases. Conversely, as pressure decreases, the freezing point of a substance generally increases. This relationship is described by the phase diagram of that substance.
What is a substance that increases H and decreases pH when it dissociates in water?
An acid is a substance that increases the concentration of hydrogen ions (H+) and decreases the pH when it dissociates in water. Examples of acids include hydrochloric acid (HCl) and acetic acid (CH3COOH).
WOULD A SUBSTANCE THAT DECREASES MEMBRANE PROBABILITY TO SODIUM INCREASE OR DECREASE THE PROBABILITY OF GENERATING A NERVE IMPULSE?
It would decrease the probability of generating a nerve impulse. When a neuron is activiated by a threshold stimulus, the membrane briefly becomes more permeable to sodium. If the permeability is decreased, it will be more difficult for the sodium ions to rush into the cell.
What Explain what happens to the average kinetic energy, thermal energy, and temperature of a substance when the particles in the substance slow down.?
The particles in a substance slow down when the average kinetic energy of the particles decreases. As the average kinetic energy decreases, the internal energy decreases, and so the thermal energy decreases. As the thermal energy of the substance decreases, the temperature decreases.
When a substance melts the temperature of the substance?
it decreases.
When a substance melts The temperature of the substance increases?
it decreases.
When a substance is melting the temperature of the substance what?
it decreases.
As the density of a substance increases the volume of a given mass of that substance .?
Decreases
What is a substance that decreases activation energy?
A catalyst
Would a substance that decreases membrane permeability to sodium increase or decrease the generating of a nerve impulse?
A substance that decreases membrane permeability to sodium would decrease the generation of a nerve impulse. This is because sodium ions play a crucial role in depolarizing the membrane and initiating nerve impulses. By reducing sodium influx into the cell, the ability of the neuron to generate an action potential would be diminished.
Molecules in a substance slow down when a substance is?
Molecules in a substance slow down when a substance is cooled. Temperature is the measure of average kinetic energy of particles. Kinetic energy is the energy of motion. So when temperature decreases, the average kinetic energy decreases, so the energy of motion decreases, and the molecule slows down.
What decreases the rate at which a substance melts?
decreasing the temperature
What is an antisialagogue?
An antisialagogue is a substance which decreases the production of saliva.
What happens when to particles of a substance when it condenses?
Particle Movement decreases.
