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BROWNIAN MOVEMENT The molecules of any liquid are in constant motion due to their kinetic energy. Because cytoplasm is approximately 70% to 80% water, its molecules are also in constant motion and this motion helps to distribute materials within the cell. We cannot see the movement of water molecules but we can see the effect of their motion on small particles. Carmine is a fine powder that forms a suspension of tiny particles when mixed with water. Your instructor will show you such carmine suspension under high power of a microscope. Examine the motion of these nonliving carmine particles. The bouncing movement of small particles suspended in liquid is called Brownian motion and is due to collisions of these particles with the fast-moving molecules of liquid. In our example, water molecules are pushing the carmine particles. Each time a particle is hit, it rebounds, or bounces away. The water molecules that are moving the carmine particles weigh about five billion times less than the smallest particle you can see with the ordinary light microscope. Describe the path of movement of a carmine particle. Effect of Particle Size The kinetic energy of the water molecules is what causes the carmine particles to move. If all other factors are equal then a given amount of force can move a small particle farther than it can a large one. For example, if a player strikes a baseball with

          BROWNIAN MOVEMENT
The molecules of any liquid are in constant motion due to their kinetic energy.
Because cytoplasm is approximately 70% to 80% water, its molecules are also in
constant motion and this motion helps to distribute materials within the cell.
We cannot see the movement of water molecules but we can see the effect of
their motion on small particles. Carmine is a fine powder that forms a suspension of
tiny particles when mixed with water. Your instructor will show you such carmine
suspension under high power of a microscope. Examine the motion of these
nonliving carmine particles. The bouncing movement of small particles suspended in
liquid is called Brownian motion and is due to collisions of these particles with the
fast-moving molecules of liquid. In our example, water molecules are pushing the
carmine particles. Each time a particle is hit, it rebounds, or bounces away. The
water molecules that are moving the carmine particles weigh about five billion times
less than the smallest particle you can see with the ordinary light microscope.
Describe the path of movement of a carmine particle.
Effect of Particle Size
The kinetic energy of the water molecules is what causes the carmine particles to
move. If all other factors are equal then a given amount of force can move a small
particle farther than it can a large one. For example, if a player strikes a baseball with

BROWNIAN MOVEMENT
The molecules of any liquid are in constant motion due to their kinetic energy.
Because cytoplasm is approximately 70% to 80% water, its molecules are also in
constant motion and this motion helps to distribute materials within the cell.
We cannot see the movement of water molecules but we can see the effect of
their motion on small particles. Carmine is a fine powder that forms a suspension of
tiny particles when mixed with water. Your instructor will show you such carmine
suspension under high power of a microscope. Examine the motion of these
nonliving carmine particles. The bouncing movement of small particles suspended in
liquid is called Brownian motion and is due to collisions of these particles with the
fast-moving molecules of liquid. In our example, water molecules are pushing the
carmine particles. Each time a particle is hit, it rebounds, or bounces away. The
water molecules that are moving the carmine particles weigh about five billion times
less than the smallest particle you can see with the ordinary light microscope.
Describe the path of movement of a carmine particle.
Effect of Particle Size
The kinetic energy of the water molecules is what causes the carmine particles to
move. If all other factors are equal then a given amount of force can move a small
particle farther than it can a large one. For example, if a player strikes a baseball with

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