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