MCQ
A root hair is formed by
- ✓Epidermal cell
- BEndodermal cell
- CCortical cell
- DPericycle cell
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$I$. they are nucleated
$II$. they are denucleated like $RBC$
$III$ they are $6000-8000 \;m m ^{-3}$ of blood
$IV$. they are long lived
$V$, they are short lived
Choose the appropriate option with correct properties
$R$ : In non-competitive inhibition, inhibitor and substrate bind at same sites on the enzyme.
$\begin{array}{|l|l|} \hline Column\,\,-I & Column\,\,-II \\ \hline A.\,\,Natural\,\,auxin & 1.\,\,IAA \\ \hline B.\,\,Synthetic\,\,auxin & 2.\,\,NAA \\ \hline & 3.\,\,IBA \\ \hline & 4.\,\,2-4-D \\ \hline \end{array}$
$A - B$
| Column I | | Column II | |
| A | Proximal convoluted tubule | i. | Formation of concentrated urine |
| B | Distal convoluted tubule | ii. | Formation blood |
| C | Henle’s loop | iii. | Reabsorption of 70-80% of electrolytes |
| D | Counter-current mechanism | iv. | Ionic balance |
| E | Renal corpuscle medulla | v. | Maintenance of concentration gradient in |