MCQ
Cycas has two cotyledons but is not included under angiosperms because it has
- ACircinate ptyxis
- BCompound leaves
- CMonocot like stem
- ✓Naked seeds
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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.
$\begin{array}{|p{0.6\linewidth}|p{0.3\linewidth}|} \hline Column\,\,-I & Column\,\,-II \\ \hline (p)\,\,Grana\,\,region\,\,of\,\,chloroplast & (i)\,\,Krab's\,\,cycle \\ \hline (q)\,\,Stroma\,\,region\,\,of\,\,chloroplast & (ii)\,\,Light\,\,reaction \\ \hline (r)\,\,Cytoplasm & (iii)\,\,Dark\,\,reaction \\ \hline (s)\,\,Cytoplasm\,\,of\,\,mitochondria & (iv)\,\,Glycolysis \\ \hline \end{array}$