MCQ
If $R$ group is hydroxy methyl, then amino acid is.........
- AGlycine
- BAlanine
- ✓Serine
- DGlutamic acid
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$\begin{array}{|p{0.3\linewidth}|p{0.5\linewidth}|} \hline Column-I & Column-II\,\,(Amount\,\,of\,\,CO_2\,\,mm\,Hg) \\ \hline (a)\,\,Alveoli & (1)\,\,40 \\ \hline (b)\,\,Tissue & (2)\,\,45 \\ \hline (c)\,\,Blood\,\,without\,\,O_2 & (3)\,\,40 \\ \hline (d)\,\,Blood\,\,with\,\,O_2 & (4)\,\,45 \\ \hline \end{array}$
| Alveolar Air | Atmospheric Air | |
| $p O _{2}$ | $ X$ | $ Y$ |
| $pCO _{2}$ | $A$ | $B$ |
$I.$ Primary and secondary phloem gets crushed during secondary growth
$II.$ During secondary growth, primary xylem remains more or less intact