Biology Unit 2 Review - Nutrition & Digestion

What is the main function of lipids in the body?

• Building muscles

• Act as a source of energy for the body

• To make up genetic material

• Composes cell membranes

Which biomolecule is the main source of energy for the body?

• Proteins

• Vitamins

• Carbohydrates

• Lipids

What are the building blocks of proteins?

• Lipids

• Carbohydrates

• Amino acids

• Nucleic acids

Name the enzyme responsible for breaking down lipids in the digestive system.

• Amylase

• Lipase

• Protease

• Ligase

What role do vitamins play in the body?

• Vitamins are only needed in small amounts

• Vitamins have no impact on the body

• Vitamins play essential roles in various bodily functions.

• Vitamins are harmful to the body

What is the purpose of using a reagent?

• To test for the occurrence of a reaction

• It has no purpose

• To stop a chemical reaction

• To balance a reaction

What reagent is used to test for starch?

• Biuret solution

• Sudan III solution

• Benedict's solution

• Iodine solution

What is the function of the digestive system?

• Respiration

• Digestion

• Absorption

• Regulate movements

What body part connects the mouth to the esophagus?

• Pharynx

• Lungs

• Salivary Glands

• Small Intestine

Why is it important to have a balanced diet with all essential nutrients?

• To provide the body with necessary nutrients for ideal functioning, growth, and overall health.

• To make the diet more expensive

• To increase the risk of nutrient deficiencies

• To limit food choices