Statement I is false. In most dicotyledonous leaves, the abaxial epidermis (lower surface) has more stomata than the adaxial epidermis (upper surface). This is an adaptation to reduce water loss.
Statement II is true. Palisade parenchyma cells are elongated, vertically arranged, and parallel to each other, maximizing light absorption for photosynthesis.
List I (Types of Stomata) | List II (Family Type) | ||
A | Anomocytic | I | Cruciferous type |
B | Anisocytic | II | Rubiaceous type |
C | Paracytic | III | Ranunculaceous type |
D | Diacytic | IV | Caryophyllous type |
Choose the correct answer from the options given below:
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :
Predict the major product $ P $ in the following sequence of reactions:
(i) HBr, benzoyl peroxide
(ii) KCN
(iii) Na(Hg), $C_{2}H_{5}OH$
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: