Cellular respiration involves the oxidation of complex organic molecules. Fermentation occurs under anaerobic conditions, and the fate of pyruvate depends on the organism. Water is formed when oxygen accepts electrons. The entire process of cellular respiration does not occur solely in mitochondria; glycolysis takes place in the cytoplasm.
Statements A, C, D, and E are correct.
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A typical unfertilized, angiosperm embryo sac at maturity is 8-nucleate and 7-celled.
Reason (R): The egg apparatus has 2 polar nuclei.
In the light of the above statements, 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 :