MCQ
Microtubule is involved in the.
- ✓Cell division.
- BMembrane architecture.
- CMuscle contraction.
- D$\text{DNA}$ recognition.
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| 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 |
$I.$ From atria to ventricles
$II.$ From ventricles to pulmonary artery
$III.$ From pulmonary artery to aorta
Choose the correct option
$(A)$ Inliverworts,mossesandferns gametophytes are freeliving.
$(B)$ Gymnosperms and some ferns are heterosporous.
$(C)$ Sexual reproduction in Fucus, Volvox andAlbugo is oogamous.
$(D)$ The sporophyte in liverworts is more elaborate than that in mosses.
$(E)$ Both, Pinus and Marchantia are dioecious. How many of the above statements are correct?