Digestion & Absorption KS5 A level

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 ___________________________

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