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CBNS Exam Study Questions Study Guide

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CBNS Exam Study Questions Study Guide. Parietal Cells - answerSecrete Intrinsic Factor and HCL Intrinsic Factor - answerIs a small protein that helps with the absorption of B12 Mucosal Cells - answerSecrete mucus with glycoproteins and bicarbonate Gastric Acid - answerAids in the destruction of...

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  • October 16, 2024
  • 26
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CBNS
  • CBNS
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©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM



CBNS Exam Study Questions Study Guide.




Parietal Cells - answer✔Secrete Intrinsic Factor and HCL


Intrinsic Factor - answer✔Is a small protein that helps with the absorption of B12


Mucosal Cells - answer✔Secrete mucus with glycoproteins and bicarbonate


Gastric Acid - answer✔Aids in the destruction of microorganisms


Activates the conversion of Pepsinogen to Pepsin - answer✔Gastric Acid


Activates Intrinisic Factor - answer✔Gastric Acid


Gastrin - answer✔acts on parietal & chief cells to stimulate HCL and pepsinogen


Small Intestines - answer✔Contains the brush border on the luminal surface


Major anatomical site of food digestion & nutrient absorption - answer✔Small Intestines


Microvilli - answer✔Folds of the plasma membrane that increase the surface area of the cell to

increase absorption or secretion

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


Enterocytes - answer✔cells that line the Small Intestine. What covers villi. These are the cells

that process foods and further digestion and absorption takes place. Each enterocytes has

microvilli -


Proximal upper section of small intestines - answer✔Chemical degradation of partially digested

food - absorption begins


Jejunum - answer✔major site of nutrient absorption


Ileum - answer✔absorption of b12 and bile salts; site of remaining protein and carbohydrate

absorption;secretes gastrin, secretin and CCK


Salivary and pancreatic amylase - answer✔converts polysaccharides starch and glycogen to

disaccharide maltose


Disaccharidases - answer✔enterocyte brush border contains sucrase-isomaltase, lactase, maltase-

glucoamylase;breakdown maltose and associated disaccharides


Glutamine - answer✔Provides energy for enterocytes


Precursor for Glutathione Synthesis - answer✔Glutamine


Passive (Simple) Diffusion - answer✔potential energy of nutrient concentration moves from

higher to lower concentration

, ©SIRJOEL EXAM SOLUTIONS
12/3/2024 11:27AM


Facilitated (Carrier Mediated Transport) Diffusion - answer✔potential energy of nutrient

concentration moves from higher to lower concentration but is attached to a lipid soluble carrier

protein to help pass through the membrane


Carbohydrates are transported through the membrane via: - answer✔facilitated diffusion


Active Transport - answer✔Nutrient moves through mucosal membranes against the

concentration gradient with a carrier protein and energy provided by ATP


Bile - answer✔Stored in the gallbadder


Emulsifies fine lipid droplets - answer✔Bile Salts


Emulsification - answer✔Physical process of breaking up large fat globules into smaller

globules, thereby increasing the surface area that enzymes can use to digest the fat.


Pancreatic Zymogens - answer✔Trypsinogen, proelastase, chymotrypsinogen, procolipase,

procaboxypeptidase A&B


Enterokinase is secreted in the: - answer✔duodenum


What enzyme converts trypsinogen to trypsin - answer✔Enterokinase


What peptide hormone stimulates the secretion of pancreatic zymogens -

answer✔Cholecystokinin


Enterocyte Survival is - answer✔~72 hours

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