Digestion & Absorption is part of the The Gastrointestinal Tract section of Physiology. Practise 50 exam-style MCQs for NEET PG, FMGE, INI-CET and NEET SS, each with the correct answer and a detailed explanation.
GLUT5 fructose uptake, SGLT1 glucose transport, ileal vitamin B12 absorption and hepcidin–ferroportin iron control drive these Digestion & Absorption MCQs, which test nutrient handling as high-yield NEET PG and INI-CET material.
Fructose is absorbed from intestinal lumen into the enterocytes by GLUT5 and out of the enterocytes into the interstitium by GLUT2 This type of transport is an example for facilitated diffusion Reference: Ganong, 25th edition page no.477
Secondary active transport protein for glucose transport is Sodium Glucose Cotransporter (SGLT) SGLT 1-intestine and SGLT 2-Proximal convoluted tubule of kidney Reference: Ganong, 25 th edition page no.45
Due to Resection of the Jejunum and Ileum Mainly the Deficiency of the Substance which are absorbed from them respectively will occur. Nutrients absorbed from Ileum are Mainly Vit B12, Magnesium, Bile salts etc Nutrients absorbed from Jejunum are Mainly All Major Nutrients, Water, Long Chain Fatty Acids.
Colipase functions as a cofactor for pancreatic lipase Reference: Ganong, 25th edition page no.476
Hepcidin is the crucial molecule in iron metabolism, linking body stores with intestinal iron absorption Reference: Ganong, 25 th edition page no.483
Hepcidin is produced by liver. It represses the basolateral transport of iron into blood It also inhibits iron release from macrophages and other cells by binding to ferroportin It is crucial molecule in iron metabolism, linking body stores with intestinal iron absorption Its level is regulated by HFE gene Mutations in HFE gene - hemochromatosis Reference: Ganong 25th ed p. 483
Disaccharidases are present only in small intestine Reference: Ganong, 25th edition page no.476
Lipases in saliva and gastric juice have a minimal role in fat digestion Pancreatic lipases is the most important Reference: Ganong, 25th edition page no.481
GLUT5 fructose uptake, SGLT1 glucose transport, ileal vitamin B12 absorption and hepcidin–ferroportin iron control drive these Digestion & Absorption MCQs, which test nutrient handling as high-yield NEET PG and INI-CET material.
MedLadder includes 50 curated MCQs for Digestion & Absorption under Physiology (The Gastrointestinal Tract), covering NEET PG, FMGE, INI-CET and NEET SS preparation.
