MCQ
What is correct about human body
- AThere are $5 $ vertebra in the neck
- BBrain box is made up of $4$ bones
- CThere are $15$ pairs of ribs
- ✓There are $12$ thoracic vertebra
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$I.$The portion of the spectrum between $300-500 \;nm$ is also referred to as Photosynthetically Active Radiation $(PAR)$.
$II.$ Magnesium, calcium and chloride ions play prominent roles in the photolysis of water:
$III.$ In cyclic photophosphorylation, oxygen is not released (as there is no photolysis of water) and $NADPH$ is also not produced.