List I | List II | ||
|---|---|---|---|
| A | Nucleolus | I | Site of formation of glycolipid |
| B | Centriole | II | Organization like the cartwheel |
| C | Leucoplasts | III | Site for active ribosomal RNA synthesis |
| D | Golgi apparatus | IV | For storing nutrients |
The question involves matching biological components in List I with their functions or characteristics in List II.
| List I | List II |
|---|---|
| Nucleolus | Site for active ribosomal RNA synthesis (III) |
| Centriole | Organization like the cartwheel (II) |
| Leucoplasts | For storing nutrients (IV) |
| Golgi apparatus | Site of formation of glycolipid (I) |
This gives us the pairings:
Thus, the correct answer is: A-III, B-II, C-IV, D-I
| Column-I | Column-II | ||
| 1. | Hypertonic | p. | Two molecules move in the same direction across the membrane. |
| 2. | Capillarity | q. | External solution is more concretrated than cell sap. |
| 3. | Symport | r. | Water loss in the form of droplets. |
| 4. | Guttation | s. | Ability of water to rise in thin tubes. |
AB is a part of an electrical circuit (see figure). The potential difference \(V_A - V_B\), at the instant when current \(i = 2\) A and is increasing at a rate of 1 amp/second is:
Three identical heat conducting rods are connected in series as shown in the figure. The rods on the sides have thermal conductivity 2K while that in the middle has thermal conductivity K. The left end of the combination is maintained at temperature 3T and the right end at T. The rods are thermally insulated from outside. In steady state, temperature at the left junction is \(T_1\) and that at the right junction is \(T_2\). The ratio \(T_1 / T_2\) is 
