Proteins and Amino Acids

What happens to a normal protein when it is exposed to heat, acids, salts, and mechanical agitation?

• It becomes a denatured protein.

• It becomes a carbohydrate.

• It dissolves completely in water.

• It forms a nucleic acid.

What is the process called when a copy of the DNA code is made as messenger RNA (mRNA)?

• Transcription

• Translation

• Replication

• Mutation

Tags

NGSS.HS-LS1-1

Which molecule brings amino acids to the ribosome during protein synthesis?

• mRNA

• tRNA

• DNA

• Ribosome

The ribosome reads the mRNA and builds a protein by joining amino acids in the correct order.

• True

• False

Tags

NGSS.HS-LS1-1

Proteins are ______ molecules.

• large

• small

• liquid

• gaseous

Proteins are made up of chains of ______.

• amino acids

• fatty acids

• nucleotides

• monosaccharides

Tags

NGSS.HS-LS1-1

Where are proteins found in the body?

• In every cell in the body

• Only in the blood

• Only in the bones

• Only in the muscles

Proteins are involved in most of the body's ______ and life processes.

• functions

• colors

• locations

• numbers

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

The sequence of amino acids in a protein is determined by ______.

• DNA

• RNA

• Lipids

• Carbohydrates

Tags

NGSS.HS-LS1-1

Which of the following is composed of more than 50 amino acids?

• Dipeptide

• Tripeptide

• Polypeptide

• Protein