STD 11 - 10. Cell cycle and cell division — BIOLOGY STD 11 Science — Question

$I.$ Stretch receptors on the wall of urinary bladder send signal to the $CNS$

$II.$ The bladder fills with urine and becomes distended

$III.$ Micturition

$IV.$ $CNS$ passes on motor messenger to initiate the contraction smooth muscles of bladder and simultaneous relaxation of urethral sphincter

The correct order of steps for urination is

$(a)$ Lipids having only single bonds are called unsaturated fatty acids.

$(b)$ Lecithin is a phospholipid.

$(c)$ Trihydroxy propane is glycerol.

$(d)$ Palmitic acid has $20$ carbon atoms including carboxyl carbon.

$(e)$ Arachidonic acid has $16$ carbon atoms.

Choose the correct answer from the options given below.