Q.1.
Which of these molecules only moves by simple diffusion?
Q.2.
Diffusion is...
Q.3.
The rate of diffusion is increased in which of the following situations?
Q.4.
Active transport is where molecules use a carrier and are moved...
Q.5.
Diffusion happens faster in which of the following situations?
Q.6.
Diffusion is the movement of particles from high concentration to which of the following?
Q.7.
Diffusion requires which of the following?
Q.8.
Which of these molecules is too big to diffuse through a membrane, using simple diffusion?
Q.9.
Which of these is a major site for gaseous exchange in the body?
Q.10.
Diffusion is fast in the lungs. Why is this?