WorksheetsDigestion & Absorption KS5 A level
Total questions: 16
Worksheet time: 9mins
Digestion involves hydrolysis reactions, these reactions break bonds by adding what?
Lipid
Water
Oxygen
Carbon Dioxide
What is starch broken down by?
Carboxylase
Starchase
Peptidase
Amylase
What is starch broken down into?
Maltose
Glucose
Galactose
Fructose
Which monosaccharide is the disaccharide maltose then broken down into?
Galactose + Glucose
Fructose + Glucose
Sucrose + Glucose
Glucose + Glucose
Which of these is not a type of amylase?
Ileal amylase
Salivary amylase
Pancreatic amylase
Disaccharides are then broken down to monosaccharides by (a)
Membrane-bound disaccharidases are enzymes attached to the cell surface membrane of what kind of cells in the ileum?
Endothelial cells
Goblet cells
Epithelial cells
Smooth muscle cells
Sucrase breaks down sucrose to which two monosaccharides?
Glucose + fructose
Galactose + glucose
Glucose + glucose
Galactose + fructose
Which of the following are necessary for efficient digestion of lipids?
Bile
Lipase
Triglyceride
Monoglyceride
Where are lipases synthesised?
Pancreas
Gall bladder
Stomach
Ileum
Which of the following is not a component of a micelle?
Lipases
Bile salts
Monoglycerides
Fatty acids
Where do exopeptidases break peptide bonds?
End of a polypeptide
Middle of a polypeptide
Pepsin and Trypsin are BOTH examples of?
Peptidases
Endopeptidases
Exopeptidases
Dipeptidases
Fatty acids cross the cell surface membrane of an epithelial cell in the ileum because
They are small
They are attached to micelles
They are polar
They are lipid soluble
In the ileum, glucose molecules are absorbed into the bloodstream by:
active transport with sodium ions via a co-transporter protein
active transport with potassium ions via a co-transporter protein
facilitated diffusion through a different transporter protein
facilitated diffusion with sodium ions via a co-transporter protein
By which process do fatty acids and glycerol enter the epithelial cells of the ileum?
Endocytosis
Simple Diffusion
Facilitated Diffusion
Active Transport
