Mod 10 - Digestion Physiology - Fluid/Enzymes

Question 1

Name the fluid/enzymes secreted in the oesophagus

Answer 1

Mucous

Question 2

Name the fluid/enzymes secreted in the stomach (gastric) (5)

Gastric GHIMP

Answer 2

Gastric lipase
Hydrochloric acid
Intrinsic factor
Mucous
Pepsin

Question 3

Name the fluid/enzymes secreted in the liver

Main ones

Answer 3

Bile
Bile salts
Bilirubin

Question 4

Name the fluid/enzymes secreted in the pancreas (8)

Clue: trippen-days and ase

Answer 4

Trypsin
Chymotrypsin
Carboxypeptidase

Bicarbonate ions
Pancreatic amylase
Pancreatic lipase
Ribonuclease
Deoxyribonuclease

Question 5

Name the fluid/enzymes secreted in the small intestine (7)

Clue: pepsi milkshake

Answer 5

Mucous

Peptidases
Enterokinase
Sucrase
Maltase
Isomaltase
Lactase

Question 6

Oral Cavity Secretions

A: serous saliva
B: salivary amylase
C: mucous
D: lingual lipase

Answer 6

A: moistens food, neutralises bacterial acids, flushes bacteria from oral cavity
B: digests carbs
C: lubes food, protects digestive tract from abrasion
D: digests small amount of lipids

Question 7

Name the fluid/enzymes secreted in the oral cavity (4)

MSLS

Answer 7

Mucous
Serous saliva
Lingual lipase
Salivary amylase

Question 8

Oesophagus secretions

A: Mucous

Answer 8

Lube + protects oesophagus lining from abrasion

Question 8

Gastric Secretions

A: HCl
B: pepsin
C: mucous
D: intrinsic factor
E: gastric lipase

Answer 8

A: antibacterial; stomach pH to activate pepsinogen to pepsin
B: digests protein into smaller peptide chains; activates pepsinogen
C: protects stomach lining from being damaged
D: binds to vit B12 and aids in its absorption
E: digests small amount of lipids

Question 9

Liver Secretions

Bile
    Bile salts
    Bile pigments (bilirubin)
    Cholesterol 
    Mucous
    Lecithin

Answer 9

Bile salts: emulsify lipids, making them available to lipases, and help make end products soluble for absorption

Other bile contents = waste products transported to intestines for disposal

Question 10

Pancreas Secretions

Trypsin*
Chymotrypsin*
Carboxypeptidase*

Answer 10

Inactive when secreted, then activated

A,B,C: Digests proteins

Question 11

Pancreas Secretions

A: Pancreatic amylase
B: Pancreatic lipase
C: Ribonuclease
D: Deoxyribonuclease
E: Bicarbonate ions

Answer 11

A: digests carbs
B: digests lipids
C: digests ribonucleic acid
D: digests deoxyribonucleic acid
E: neutralise acid from stomach; provide appropriate pH for pancreatic enzymes

Question 12

Small Intestine Secretion

Mucous

Answer 12

Protects duodenum from stomach acid, gastric enzymes and intestinal enzymes

Provides adhesion for faecal matter

Protects intestinal wall from bacterial action and acid produced in faeces

Question 13

Small Intestine Secretions

A: peptidases~
B: enterokinase~
C: sucrase~
D: maltase~
E: isomaltase~
F: lactase~ 

Clue: splits everything

Answer 13

~Remain in microvilli~

A: split AA from polypeptides
B: activates trypsin from trypsinogen
C: splits sucrose into glucose and fructose
D: splits maltose into 2 glucose molecules
E: splits isomaltose into 2 glucose molecules
F: splits lactose into glucose and galactose