Bio 202 Exam 3 Study Guide
Study online at https://quizlet.com/_h1v76l
1. Know the 6 steps 1. ingestion, 2. propulsion, 3. mechanical or physical digestion, 4. chemical diges-
of digestion in or- tion, 5. absorption, and 6. defecation.
der
2. What peristalsis a sequence of alternating waves of contraction and relaxation of alimentary smooth
is muscles which act to propel food along
3. Parietal cells Produce both hydrochloric acid (HCl) and intrinsic factor.
4. Chief cells secrete pepsinogen
5. Mucous neck secrete thin, acidic mucus of unknown function
cells
6. Enteroendocrine Secrete histamine, gastrin, somatostatin, serotonin, etc
cells
7. Amylase Enzyme in saliva that breaks the chemical bonds in starches
8. Lipase Breaks down fat into fatty acids and glycerol
9. proteases Enzymes that break down proteins into amino acids and peptides
10. Lactase enzyme that breaks down lactose
11. Maltase A digestive enzyme that breaks maltose into glucose.
12. sucrase breaks down sucrose
13. duodenum first part of the small intestine
14. jejunum second part of the small intestine
15. ileum third part of the small intestine
1/5
, Bio 202 Exam 3 Study Guide
Study online at https://quizlet.com/_h1v76l
16. Hepatocytes liver cells; produce bile
17. Bile a mixture secreted by the hepatocytes to emulsify the lipids in the small intestine
18. Bilirubin break down of hemoglobin/RBCs that are old or damaged
19. pancreatitis inflammation of the pancreas and caused by active digestive enzymes
20. Gallbladder A muscular sac attached to the liver secretes bile and stores it until needed for
digestion
21. carbohydrate di- amylase, sucrase, lactase, maltase
gestion
22. Protein Digestion Proteins are broken down into amino acids by peptidases
23. nucleic acid di- DNA and RNA are broken down by pancreatic nucleases into smaller carbon
gestion compounds
24. Passive diffusion Movement of substances from high to low concentration using a carrier protein
25. facilitated diffu- the movement of a larger substance from an area of high concentration to an area
sion with low concentration
26. active transport ATP is used to move substances against their concentration gradient
27. Metabolism All of the chemical reactions that occur within a cell
28. Catabolism Breakdown of organic compounds
Releases ATP (exergonic)
Hydrolysis
29. Anabolism Building of organic compounds
Requires ATP (endergonic)
Dehydration Synthesis
2/5
Study online at https://quizlet.com/_h1v76l
1. Know the 6 steps 1. ingestion, 2. propulsion, 3. mechanical or physical digestion, 4. chemical diges-
of digestion in or- tion, 5. absorption, and 6. defecation.
der
2. What peristalsis a sequence of alternating waves of contraction and relaxation of alimentary smooth
is muscles which act to propel food along
3. Parietal cells Produce both hydrochloric acid (HCl) and intrinsic factor.
4. Chief cells secrete pepsinogen
5. Mucous neck secrete thin, acidic mucus of unknown function
cells
6. Enteroendocrine Secrete histamine, gastrin, somatostatin, serotonin, etc
cells
7. Amylase Enzyme in saliva that breaks the chemical bonds in starches
8. Lipase Breaks down fat into fatty acids and glycerol
9. proteases Enzymes that break down proteins into amino acids and peptides
10. Lactase enzyme that breaks down lactose
11. Maltase A digestive enzyme that breaks maltose into glucose.
12. sucrase breaks down sucrose
13. duodenum first part of the small intestine
14. jejunum second part of the small intestine
15. ileum third part of the small intestine
1/5
, Bio 202 Exam 3 Study Guide
Study online at https://quizlet.com/_h1v76l
16. Hepatocytes liver cells; produce bile
17. Bile a mixture secreted by the hepatocytes to emulsify the lipids in the small intestine
18. Bilirubin break down of hemoglobin/RBCs that are old or damaged
19. pancreatitis inflammation of the pancreas and caused by active digestive enzymes
20. Gallbladder A muscular sac attached to the liver secretes bile and stores it until needed for
digestion
21. carbohydrate di- amylase, sucrase, lactase, maltase
gestion
22. Protein Digestion Proteins are broken down into amino acids by peptidases
23. nucleic acid di- DNA and RNA are broken down by pancreatic nucleases into smaller carbon
gestion compounds
24. Passive diffusion Movement of substances from high to low concentration using a carrier protein
25. facilitated diffu- the movement of a larger substance from an area of high concentration to an area
sion with low concentration
26. active transport ATP is used to move substances against their concentration gradient
27. Metabolism All of the chemical reactions that occur within a cell
28. Catabolism Breakdown of organic compounds
Releases ATP (exergonic)
Hydrolysis
29. Anabolism Building of organic compounds
Requires ATP (endergonic)
Dehydration Synthesis
2/5
