Which of the following biological molecules contains the element nitrogen?

What is the function of protein in the body?

Which of the following biological molecules has a role in energy storage?

Which of the following molecules is a quick source of energy?

Which of the following is a good solvent in the body?

Water acts as a solvent in the body.

Which of these body processes are possible because water is a solvent?

I. transport of materials

II. digestion

III. excretion of waste

Which carbohydrate strengthens plant cell walls?

Which carbohydrate is stored in animal cells?

Which carbohydrate is used for respiration?

Which carbohydrate is stored in plant cells?

Which biological molecule is made by joining amino acids together?

Which biological molecule is made by joining together glycerol and fatty acids?

Which of the following statements about starch and glycogen is correct?

Which of the following biological molecules are made of glucose?

I. cellulose

II. glycogen

III. starch

Which of the following biological molecules contain a type of acid?

I. carbohydrates

II. fats

III. proteins

Which type of biological molecule is shown in the picture?

Which of the following are very long carbohydrate molecules?

I. cellulose

II. glucose

III. glycogen

Which of the following are true for both starch and a protein?

I. They are long chains

II. They contain nitrogen

III. They contain hydrogen

In humans, if too much glucose is present in the blood, it is taken to the liver.

In the liver these extra glucose molecules are joined together to form a larger carbohydrate.

What is the name of this larger carbohydrate?

Which of the following could make one protein different to another protein?

I. the number of amino acids it contains

II. the sequence of amino acids

III. they contain amino acids