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WorksheetsDigestion and Absorption
Total questions: 20
Worksheet time: 28mins
Bile juice helps in the digestion of fat because it contains
enzymes
vitamins
bile salts
bile pigments
The many projections on the wall of small intestine function to –
Secrete digestion enzymes
Increase the surface area
Hold products of digestion so they do not enter the large intestine
Hold mucus, so ulcers do not form
Which enzyme breaks down fats and oils in the small interstine?
lipase
amylase
protease
glucose
Amino acids are linked together chemically to form molecules of
Simple Carbohydrates
Complex Carbohydrates
Really Complex Carbohydrates
Proteins
What is the function of the gall bladder? *2015 Q26
absorption of fat
digestion of fat
production of bile
storage of bile
Most nutrient absorption occurs in the ________________ .
mouth
stomach
large intestines
small intestines
Waves of contractions that move food one way through the digestive system are called
Impulse
Peristalsis
Action Potential
Metabolism
The protective substance that lines the stomach is called
Mucus
Saliva
Pepsin
Trypsin
Protein digestion takes place
in the mouth
in the stomach
in the stomach and duodenum
all of the above
Bile is produced by the
Liver
Pancreas
Small Intestine
Large Intestine
Amylase is secreted by
salivary glands only
pancreatic glands only
Salivary and pancreatic glands
liver and small intestine
Enterokinase is secreted by
Intestinal glands
Pancreatic duct
Liver
Salivary gland
Which statement about absorption from the gastro-intestinal (GI) tract is most correct?
The absorption of glucose is associated with sodium uptake.
Fructose is absorbed more rapidly than glucose.
Galactose and fructose are absorbed by the same transporter at the brush border membrane.
Most water absorption along the GI tract occurs in the colon.
Enterokinase/enteropeptidase takes part in the conversion of
Pepsinogen to pepsin
Trypsinogen to trypsin
Protein into polypeptides
Caseinogen to casein
Gastric juice does not contain
Lipase
Renin
Amylase
Protease
Bile produce in the liver is associated with which of the following
Emulsification of fats into tiny globules (micelles) in the small intestine by bile salts
Digestive action of pancreatic amylase
Emulsification of fats into tiny globules in the stomach
Digestion of proteins into amino acids
Which enzyme hydrolyzes the α-1,6 glycosidic linkage in the α-limit dextrins?
Amylase
Isomaltase
Lactase
Sucrase
Which statement is correct with reference to chylomicron
They are the end products of fat digestion
The reconstructed triglycerides in the intestinal cells combine with phospholipids and cholesterol and are released into the lymph in the form of the protein-coated fat droplets called chylomicron
This is the form which digested fats arr absorbed into intestinal cells
Here are short chains of fatty acids absorbed directly into blood by diffusion
