Differentiate between :
(a) Myelinated and non-myelinated axons (b) Dendrites and axons
(c ) Rods and cones (d) Thalamus and Hypothalamus
(e ) Cerebrum and Cerebellum

Differentiate the functions of myelinated and non-myelinated neurons.

If fa n dg are one-one functions, then (a) f+g is one one (b) fg is one one (c) fog is one one (d) non eoft h e s e

Differentiate between the following: (a) Diffusion and Osmosis (b) Transpiration and Evaporation (c) Osmotic Pressure and Osmotic Potential (d) Imbibition and Diffusion (e) Apoplast and Symplast pathways of movement of water in plants. (f) Guttation and Transpiration.

Distinguish between : (a) afferent neurons and efferent neurons (b) impulse conduction in an myelinated nerve fibre and unmyelinated nerve fibre (c ) aqueous humour and vitreous humor (d) blind spot and yellow spot (f) cranial nerves and spinal nerves .

(a) Differentiate Non-renewable and Renewable energy sources. (b) List some ill effects of e-wastes.

Read the given statements and select the correct option. (i)Synaptic cleft of neurons secreates adrenaline. (ii)Myelinated nerve fibres are enveloped with Schwann cells, which form a myelin sheath around the axon. (iii)Non-myelinated nerve fibre is enclosed by a Schwann cell that does not form a myelin sheath. (iv)Spinal and cranial nerves are made of non-myelinated nerve fibres.

Which of the following options illustrates the distribution of Na^+ and K^+ ions in a section of non-myelinated axon which is at resting potentail ?