Model Paper 9 — NEET STD 11 Science — Question

$R$- It serve as a support frame work for epithelium

$(a)$ $'H'$ zone disappears

$(b)$ $'A'$ band widens

$(c)$ $'I'$ band reduces in width

$(d)$ Myosine hydrolyzes $ATP,$ releasing the $ADP$ and $\mathrm{Pi}$

$(e)$ $Z-$lines attached to actins are pulled inwards Choose the correct answer from the options given below.

$(i)$ Fleming, Chain and Florey were awarded the Nobel prize in $1945$
$(ii)$ Antibiotics have greatly improved our capacity to treat deadly diseases
$(iii)$ Penicillin was used to treat American soldiers wounded in World War I