During honey ripening in the honey stomach, the bee enzyme invertase hydrolyses floral sucrose into simple reducing sugars: levulose (D-fructose, ~38-40%) and dextrose (D-glucose, ~31-35%), while transglucosylation reactions also synthesize minor amounts of maltose (~7%) and other oligosaccharides.

• Dextrose: Major monosaccharide component of honey (glucose).
• Maltose: Minor disaccharide sugar synthesized during enzyme ripening of honey.
• Levulose: The predominant sweetest monosaccharide in honey (fructose).
• All of the above: All three sugars are formed enzymatically during the nectar-to-honey conversion process.

Statement 3 is completely incorrect because plasmatocytes in insect haemolymph are highly ADHERENT, spreading, polymorphic cells responsible for encapsulation of large foreign pathogens, phagocytosis, and nodule formation (they are never non-adherent).

• Pro-haemocytes are the stem cells, from which other haemocytes are derived: True statement.
• Granulocytes are phagocytically active and adherent types of cells: True statement.
• Plasmatocytes are large cells that non-adherent type of cell: Incorrect statement (plasmatocytes are strongly adherent and spreading cells).
• Oenocytoids are non-adherent cells that constitutively contain phenoloxidase activity: True statement.

The Insecticides Act was passed by the Parliament of India in the year 1968 (Act No. 46 of 1968) to regulate the import, manufacture, sale, transport, distribution and use of insecticides (it subsequently came into force on 1 August 1971).

• 1967: Year the bill was introduced following the Kerala pesticide poisoning enquiry commission.
• 1968: The year the Insecticides Act was officially passed by Parliament.
• 1971: The year the Insecticides Act and Insecticides Rules came into statutory enforcement.
• 1974: Year of establishment of Central Insecticide Laboratory amendments.