MCQ
The dissociation curve of O2 is :
- ✓Sigmoid
- BSloping
- CSimple line
- DJ shape
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Choose the correct option for $A, B, C$ and $D$
$(i)$ This group includes diatoms and golden algae.
$(ii)$ They are microscopic and float passively in water currents (plankton).
$(iii)$ Most of them are photosynthetic.
$(iv)$ They have deposits in their habitat; this accumulation over billion of years is referred to as 'diatomaceous earth'.
$I.$ pumping of $C a^{2+i i}$ ions in sarcoplasmic reticulum
$II.$ presence of $ATP$
$III.$ confirmational changes in troponin and masking the actin filament
Option containing correct statement is