Macromolecules

This is one job proteins do not have in the body.

• structure for tissues and organs

• transport things through cell membranes

• speed up chemical reactions

• insulation

The diagram shows the general structure of an amino acid. Which type of molecule is formed from amino acids?

• lipids
• proteins
• carbohydrates
• nucleic acids

You are analyzing a compound in the laboratory. You find that it is made up of carbon, hydrogen, and oxygen in a ratio of two hydrogen atoms for each carbon atom. How will you classify the compound?

• lipid
• protein
• carbohydrate
• nucleic acid

Fats, oils and cholesterol are all types of what?

• cell membranes
• hormones
  hormones
• lipids
• fatty acids

RNA and DNA are which type of macromolecules?

• carbohydrate
• lipid
• nucleic acid
• protein

Many plants have waxy coatings on some surfaces. This coating reduces water loss because it is not water-permeable. This waxy coating is which of the following types of organic molecule?

• protein
• carbohydrate
• nucleic acid
•  lipid

A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?

• carbohydrates
• lipids
• nucleic acids
• proteins

 In living organisms, lipids function mainly as:

• Sources of stored energy and transmitters of genetic information
• Sources of stored energy and components of cellular membranes
• Transmitters of genetic information and catalysts of chemical reactions
• Catalysts of chemical reactions and components of cellular membranes

What is the function of macromolecule subunit below?

• energy
• catalyst
• stores genetic information
• composes the majority of the cell membrane

Monosaccharides are monomers of

• Carbohydrates
• Lipids
• Proteins
• Nucleic Acids