MCQ
Plants does not need specialised respiratory organ because
- AEach plant part takes care of its own gas exchange needs
- BPlants do not need great demands for gas exchange
- ✓Both $(a)$ and $(b)$
- DNone of the above
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$I.$ Each myosin is a polymerized protein
$II.$ Many meromyosin constitutes one thick filament (myosin)
$III.$ Each meromyosin's tail is called heavy meromyosin $(HMM)$ and head is called light meromyosin $(LMM)$
$IV.$ The globular head is an active $ATP$ ase enzyme and has binding sites for $ATP$ and active sites for actin
Choose the option with correct statements