In human eyes, colour perception is done by
rod cells only
cone cells only
Both (a) and (b)
choroid laver cells
B.
cone cells only
Cones are responsible for the perception and differentiation of colours. They produce sharp, coloured image in bright light
Rods are helpful for visualization in dim light and is responsible for black and white vision.
Ivan Pavlov performed experiments on
origin of life
cardiac reflexes
simple reflexes
conditioned reflexes
In motor neuron the impulse following in which direction?
In two direction
In one drection
In all direction
None of the above
During the conduction of nerve impulse, the action potential is the result of movement of
Na+ from intracellular fluid to extracellular fluid
Na+ from extracellular fluid to intracellular fluid
Na+ towards both directions
None of the above
Which are the longest cells in the body of man ?
Muscle cells of legs
Bone cells
Nerve cells
None of the above
