Biochemistry

Which of the following is a macromolecule?

• Carbohydrate

• Pipid

• Deoxyribose

• Brotein

Which of the following macromolecules have the elements CHO? Check all that apply.

• Protein

• Carbohydrates

• Nucleic Acids

• Lipids

A monomer is ...

• a single atom
• a building block for polymers
• a single element
• is an inorganic molecule

Tags

NGSS.HS-LS1-1

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Tags

NGSS.MS-PS1-1

Which role do proteins play in the body?

• They provide long-term energy storage.

• They provide short-term energy storage.

• They provide structure to form DNA and RNA molecules.

• They provide structure for body tissue, hair, and fingernails.

Waxes create a waterproof layer on the outside of some living organisms. To which group of organic molecules do waxes belong?

• carbohydrates

• lipids

• nucleic acids

• proteins

Salivary amylase is an enzyme in humans that breaks down starches. What substance would humans have difficulty digesting without this enzyme?

• lipids

• nucleic acids

• proteins

• carbohydrates

Which statements explain the primary difference between the structure of a nucleic acid and the structure of a protein?

• A nucleic acid has alternating base pairs. A protein has alternating peptides.

• Nitrogen bases form the backbone of a nucleic acid. Peptides form the backbone of a protein.

• Nucleotides link together to form a nucleic acid. Amino acids link together to form a protein.

• A nucleic acid is held together by the sugar-phosphate complex. A protein is held together by the carbon-carbon bonds.

In organisms, macromolecules are made up of subunits. Which of these pairs correctly describes how a macromolecule is constructed?

• DNA is made up of nucleic acids.

• Protein is made up of amino acids.

• Nucleic acids are made up of DNA.

• Amino acids are made up of protein.

The process of removing water in order to form a bond between monomers is called....

• Dehydration Synthesis
• Hydrolysis