Ch2 Carbohydrates

What are monosaccharides?

• monomers from which carbohydrates are made

• monomers from which lipids are made

• monomers from which proteins are made

• monomers from which water is made

Which of the following is not an example of a monosaccharide?

• fructose

• galactose

• glucose

• glycogen

How many monosaccharides join to form a disaccharide?

• 4

• 6

• 3

• 2

Which type of reaction produces polysaccharides?

• condensation

• decomposition

• displacement

• hydrolysis

Molecules of which two monosaccharides join to form lactose?

• galactose and fructose

• galactose and glucose

• glucose and fructose

• glucose and glucose

Which substance is used to test for reducing and non-reducing sugars?

• iodine

• Benedict’s solution

• biuret solution

• ethanol

Which result indicates the presence of a reducing sugar?

• blue-black precipitate

• blue solution

• brick red precipitate

• purple solution

Why is starch a good storage molecule?

• it is soluble in water

• it is insoluble in water

• it is hydrophilic

• it is hydrophobic

What is the function of glycogen in animals?

• it provides insulation

• it provides protection

• it acts as a lipid store

• it acts as an energy store

Which of the following physiological processes shows that water is a transport medium?

• sweating

• hydrolysis of food molecules

• absorption of minerals by roots