Key terms Quiz

What is the unit commonly used to measure the energy content in food?

• Calorie

• Joule

• Newton

• Gram

Which biochemical compound is a natural polymer of glucose and is the most abundant organic compound found in nature?

• Lipid

• Protein

• Nucleic Acid

• Carbohydrate

What is a protein that will speed up a chemical reaction called?

• Monomer

• Enzyme

• Polymer

• Nucleotide

Which macronutrient provides energy for cells?

• Proteins

• Fats

• Nucleic Acids

• Carbohydrates

What is a large molecule that consists of many smaller molecules joined together by covalent bonds called?

• Polymer

• Enzyme

• Monomer

• Nucleotide

Which macronutrient is known as the body's main source of energy?

• Proteins

• Fats

• Nucleic Acids

• Carbohydrates

What is the process by which complex molecules are broken down into simpler ones to release energy?

• Anabolism

• Metabolism

• Catabolism

• Synthesis

Which nutrient is essential for building and repairing tissues in the body?

• Proteins

• Fats

• Nucleic Acids

• Carbohydrates

Which nutrient is known as the body's main source of energy?

• Proteins

• Fats

• Nucleic Acids

• Carbohydrates

What is the process by which proteins are broken down into amino acids called?

• Anabolism

• Metabolism

• Catabolism

• Synthesis