The process by which a cell engulfs liquid droplets is: MCQ with Answer and Explanation

Explanation:
Hypothyroidism in adults causes myxedema, characterized by puffy face, edema, lethargy, weight gain, and mental dullness. Goiter is an enlarged thyroid due to iodine deficiency but thyroxine may be normal or low. Cretinism is congenital hypothyroidism causing stunted growth and mental retardation. Acromegaly is due to excess growth hormone in adults.

Explanation:
The pancreas functions as an exocrine gland (secreting digestive enzymes into the duodenum via the pancreatic duct) and an endocrine gland (secreting insulin, glucagon, somatostatin from the islets of Langerhans into the blood). Thyroid, pituitary, and adrenals are purely endocrine.

Explanation:
Insulin acts primarily on liver, muscle, and adipose tissue. The liver is a key target where insulin promotes glycogenesis (glucose to glycogen), glycolysis, and lipogenesis, and inhibits gluconeogenesis, lowering blood glucose. Muscle and adipose tissue also respond. Brain takes up glucose independently of insulin via GLUT1 transporters. Thus liver is a principal target.