The organelle that contains ribosomes attached to its surface is: MCQ with Answer and Explanation

Explanation:
Aldosterone, from the adrenal cortex, acts on the distal tubule and collecting duct to increase sodium reabsorption (and water follows) and potassium secretion, raising blood volume and pressure. ADH increases water reabsorption, ANP reduces sodium reabsorption, renin is an enzyme initiating the RAAS.

Explanation:
In pisciculture, induced breeding is carried out by injecting fish with pituitary gland extract from donor fish containing gonadotropic hormones (FSH and LH), which stimulate spawning. This allows controlled production of fish seed. Hypophysation is the technique used in Indian major carps. Insulin and thyroxine are not involved in reproduction. Adrenaline is a stress hormone.

Explanation:
Vitamin K is required for the gamma-carboxylation of clotting factors II, VII, IX, and X, including prothrombin. Deficiency leads to prolonged clotting time and hemorrhagic disorders.