Unit 1 Biochemistry

The image below shows a polymer of glucose molecules. What type of macromolecule is this?

• carbohydrate
• protein
• lipid
• nucleic acid

An unknown molecule contains a sugar and a phosphate group. It is likely what?

• carbohydrate
• protein
• lipid
• nucleic acid

Larger polymers are formed when monomers are joined together by a _______ reaction.

• dehydration synthesis
• digestion
• hydrolysis
• redox

What is the monomer of proteins?

• monosaccharides
• amino acids
• phospholipids
• nucleotide

What is the ratio carbon:hydrogen:oxygen in carbohydrates?

• 1:1:1
• 1:2:1
• 2:1:1
• 2:1:2

Which of the macromolecules contain nitrogen?

• proteins only
• nucleic acids only
• proteins and lipids
• nucleic acids and proteins

What is the function of fats for living organisms?

• short term energy storage
• store hereditary information
• long term energy storage
• catalyze metabolic reactions

Identify the macromolecule in the image below.

• carbohydrate
• nucleic acid
• protein
• lipid

How are the subunits of proteins linked together?

• ionic bonds
• amino acids
• monomers
• peptide bonds

Which statement about polymers is not true?

• polymers consist of more than one type of monomer
• polymers are broken down through hydrolysis
• polymers are synthesized through dehydration synthesis
• All are untrue