Membrane Potentials Quiz

What is the potential difference that exactly balances the tendency for diffusion down a concentration difference?

What is the potential difference generated across a membrane due to a concentration difference of an ion?

When can a diffusion potential be generated across a membrane?

At electrochemical equilibrium, what happens to the chemical and electrical driving forces acting on an ion?

In the example of Na+ equilibrium potential, what ion is the membrane permeable to?

What is the definition of obesity?

What BMI range is considered as overweight?

What type of obesity occurs in children due to excessive energy intake?

At what percentage of fat is obesity said to be present in females?

In which type of obesity is there an increase in the size of the adipocytes?

What is the defining characteristic of the hyperplastic type of obesity?

In which type of obesity does the size of adipocytes increase?

What BMI range is considered as overweight?

What is the main factor determining the size of the body's energy stores?

At what fat percentage is obesity said to be present in females?

Diffusion Potential

The diffusion potential is the potential difference generated across a membrane due to a concentration difference of an ion.
A diffusion potential can be generated when a membrane is permeable to a particular ion, and there is a concentration difference of that ion across the membrane.
At electrochemical equilibrium, the chemical and electrical driving forces acting on an ion are balanced.
The equilibrium potential for an ion is the potential difference that exactly balances the tendency for diffusion down a concentration difference.
In the example of Na+ equilibrium potential, the membrane is permeable to sodium ions (Na+).

Obesity

Obesity is defined as an excessive accumulation of body fat.
A BMI (Body Mass Index) range of 25 to 29.9 kg/m² is considered overweight.
Hypertrophic obesity is characterized by an increase in the size of adipocytes (fat cells).
Hyperplastic obesity is characterized by an increase in the number of adipocytes.
Simple obesity occurs in children due to excessive energy intake.
Obesity is said to be present in females at a fat percentage of 30% or higher.
The main factor determining the size of the body's energy stores is energy balance, the difference between energy intake and energy expenditure.

Test your knowledge of membrane potentials with this quiz. Explore topics such as resting membrane potential, action potentials, and diffusion potential. Ideal for those studying physiology or neuroscience.