Sec 3 P.Bio Nutrients Milestone Quiz

This nutrient contains the elements carbon, hydrogen and oxygen with the ratio of hydrogen to carbon atoms being 2:1. The nutrient is _____ .

The ________ test is used to identify the presence of proteins in food.

Match the following carbohydrates with their functions in biological structures.

• Stored in animals as energy

• glycogen

• Stored in plants as energy

• cellulose

• Found in cell walls

• glucose

• Primary energy source in blood

• starch

Two simple sugars can join together to form a double sugar which is also known as a (a)   .

• disaccharide
• monosaccharide
• polysaccharide
• oligosaccharide

The element found in all proteins but not in both carbohydrates and fats is _____. Fill in the blank with the correct answer.

A chemical reaction that involves the loss of a water molecule to form a bond between two glucose molecules.

• Condensation

• Hydrolysis

• Oxidation

• Reduction

Fats are made up of _____ and fatty acids.

When ________ and water are added to fats, a cloudy white emulsion forms.

Besides carbohydrates, these organic compounds are also made up of the elements carbon, hydrogen and oxygen.

• fats

• proteins

• nucleic acids

• vitamins

The chemical reaction in which a complex molecule is broken down into smaller molecules in the presence of a water molecule is called (a)   . Fill in the blank with the correct answer.

• Hydrolysis
• Condensation
• Oxidation
• Reduction