Metabolism AQA GCSE

What is the definition of metabolism?

• Digestion of food

• Breaking down ingested food stuffs

• The sum of all chemical reactions in the body

• Respiration

Which one of the following is NOT a metabolic reaction?

• Digestion

• Respiration

• Making lipids

• Making cellulose

The liver has many functions. Which one is metabolic?

• Breaking down toxins

• Removing lactic acid

• Making bile

• Turning amino acids into urea

Lipids are made from

• Amino acids

• Glucose

• Glycerol and fatty acids

• Glycogen and fatty acids

Plants make amino acids out of....

• Glucose and nitrates

• Glucose and magnesium

• Proteins

• Nitrogen

The liver makes urea out of....

• Extra carbohydrates

• Extra proteins

• Bile

• Glycogen