Identify the INCORRECT statement about carbohydrates: MCQ with Answer and Explanation

Explanation:
The interventricular septum is a thick muscular wall that divides the two ventricles, preventing mixing of oxygenated and deoxygenated blood. Valves prevent backflow, atria are upper chambers.

Explanation:
Glomerular filtration rate (GFR) is the volume of filtrate formed per minute by both kidneys, normally about 125 mL/min (180 L/day). Nearly 99% of the filtrate is reabsorbed, leaving about 1-2 liters of urine per day. GFR is regulated by the juxtaglomerular apparatus. It's an important clinical indicator of kidney function, estimated from serum creatinine.

Explanation:
The endocrine part of the pancreas—the islets of Langerhans—contains β-cells that secrete insulin (lowers blood glucose), α-cells secrete glucagon (raises blood glucose), and δ-cells secrete somatostatin. Exocrine pancreas secretes digestive enzymes (trypsin, lipase, amylase). Pepsin is from stomach, bile from liver, gastrin from stomach. Insulin deficiency causes diabetes mellitus.