Water and Carbohydrates

Water molecules are polar, with the ___

• oxygen and hydrogen sides being slightly negative.

• oxygen and hydrogen sides being slightly positive.

• oxygen side being slightly positive and the hydrogen side being slightly negative.

• oxygen side being slightly negative and the hydrogen side being slightly positive

Which of the following is TRUE about water?

• A

• B

• C

• D

The density of water is highest at 4ºC. What is the effect of this property of water?

• Water can act as a good solvent.

• Water can function as lubricant.

• Water provides cooling effect on animals.

• Water can function as an insulating layer.

All the sugars given are hexoses EXCEPT

• glucose

• sucrose

• fructose

• galactose

A polysaccharide is ______

• polymer

• proteins

• inorganic molecule

• fat

Maltose consist of _____

• glucose + glucose

• glucose + fructose

• glucose + galactose

• glucose + lactose

Which of the following are disaccharides? (More than one answer.)

• Lactose

• Sucrose

• Galactose

• Maltose

Which is the monomer of cellulose?

• beta-glucose

• alpha-glucose

• galactose

• fructose

A ________ molecule is lost/removed through condensation.

• carbon dioxide

• water

• oxygen

• hydrogen

Which statement is TRUE about hydrolysis?

• A chemical process to join 2 molecules and produce a larger, more complex molecule,

• A large molecule is split into smaller and simpler molecules.

• Involves removal of water.

• Adding H atom to one section and O atom to the other section.