Unit 2 Review Quiz

Which of the following is the most direct function of nucleic acids in the cell?

• Nucleic Acids are used as the building blocks for the production of enzymes

• Nucleic Acids are used as a source of vitamins.

• Nucleic Acids are used as building blocks of cell membranes.

• Nucleic Acids are used to store genetic information

Which two organic molecules are the main sources of energy in an organism?

• Nucleic acids and lipids

• Lipids and carbohydrates

• Proteins and carbohydrates

• Carbohydrates and water

The subunits of protein are

• Monosaccharides

• Fatty acids and glycerol

• Nucleotides

• Amino acids

DNA and RNA are composed of…

• Amino acids

• Phospholipids

• Nucleotides

• Glucose

What type of organic molecule are enzymes?

• Water

• Protein

• Carbohydrates

• Lipids

Which of the following organic molecules functions to insulate the body, which helps conserve heat?

• Proteins

• Lipids

• Carbohydrates

• Nucleic Acids

What is the most abundant substance in any living thing?

• Water (H2O)

• Glucose (C6H12O2)

• Carbon Dioxide (CO2)

• Sodium Chloride (NaCl)

A major difference between organic and inorganic compounds is that…

• Inorganic compounds are large

• Organic Compounds cannot be synthesized

• Organic Compounds contain carbon and hydrogen

• Inorganic compounds are small

Overall control of cellular activities is accomplished through gene (DNA) expression, however these activities are MOST DIRECTLY regulated by the actions of

• Enzymes

• Carbohydrates

• Polysaccharides

• Lipids

Which substance would be classified as a carbohydrate?

• Glycogen

• Phospholipid

• Lactase

• Insulin