RU BL 616 - Lecture Notes (6 pages)

Previewing pages 1, 2 of 6 page document View the full content.
View Full Document

Lecture Notes



Previewing pages 1, 2 of actual document.

View the full content.
View Full Document
View Full Document

Lecture Notes

125 views


Pages:
6
School:
Regis University
Course:
Bl 616 - Biomedical Biochemistry
Biomedical Biochemistry Documents

Unformatted text preview:

Chapts 27 31 topics Chapt 27 Carbohydrates digestion Chapts 27 31 Carbohydrate topics Carbohydrates are major source of calories 40 Digested by specific enzymes Starch plants amylase Lactose galactosidase lactase Fig 1 sugars Sucrose sucrase High fructose syrup Student Learning Outcomes Explain basic processes of digestion absorption and transport of carbohydrates and lactose intolerance Describe formation degradation of glycogen Describe essentials of other sugar metabolism Isomerized from starch Cellulose is fiber Pentose phosphate path fructose galactose Describe the basic path of gluconeogenesis Glycosidases cleave carbohydrates Disaccharidases Overview of carbohydrate digestion absorption amylases saliva pancreas Disaccharidases located in intestinal brush border Hydrolyze disaccharides Fig 4 5 Anchored in membrane Saliva starts breakdown Pancreatic enzyme in intestine Are glycosylated Two enyzme activities Disaccharidases in intestine Monosaccharides enter blood through intestinal epithelium Table 1 Ex Sucrase isomaltase 1 4 bond 1 6 1 4 facilitative diffusion transporters or Na dependent glucose transporters Fiber and remaining compounds digested by bacteria in colon Transmembrane N end Fig 2 1 glycosidase complex Fiber glycosidase complex glycoprotein Anchored as phosphtidylglycan to COOH end Lactase hydrolyzes lactase Other enzyme does glycolipids glucose ceramide Fiber is indigestible carbohydrates Colonic bacteria metabolize leftover saccharides Fig 10 6 Fig 9 Lactose intolerance Lactose intolerance see Table 2 Low levels lactase late onset Adult levels are low in many populations Injestion of lactose pain nausea flatulence diarrhea Can mix lactase enzyme with food first Generate gas H2 CO2 CH4 Lactate Short fatty acids Acetic butyric Some absorbed by body Incomplete digestion products lead to diarrhea Fig 10 Absorption of sugars Sugars are absorbed through intestinal epithelia Glucose through Na dependent transporters let in Na and glucose galactose also



View Full Document

Access the best Study Guides, Lecture Notes and Practice Exams

Loading Unlocking...
Login

Join to view Lecture Notes and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Lecture Notes and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?