Protein Synthesis Final Review

Which BEST describes why protein functions are diverse?

• The process of making proteins is unregulated

• Proteins are made through different types of bonds

• Not all proteins are made from amino acids

• All proteins contain unique structures

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NGSS.HS-LS4-2

Which BEST describes the process of protein synthesis?

• Amino acids are attached by peptide bonds, forming a polypeptide chain. Protein shape determines its function.

• Amino acids are attached by peptide bonds, forming a polypeptide chain. Protein function determines its shape.

• Amino acids are attached by hydrogen bonds, forming a polypeptide chain. Protein shape determines its function.

• Amino acids are attached by hydrogen bonds, forming a polypeptide chain. Protein function determines its shape.

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NGSS.HS-LS1-1

Which statement correctly describes proteins?

• Proteins are made in the nucleus.

• DNA is the original source of protein structure.

• RNA determines the function of proteins.

• One nucleotides codes for one amino acid.

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NGSS.HS-LS1-1

What makes DNA and RNA similar?

• They are both double stranded

• They both contain deoxyribose sugar

• They are both made up of nucleotides

• They both contain the nitrogenous base Thymine

The backbone (sides) of a DNA molecule are made up of

• hydrogen bonds

• nitrogenous bases

• sugar and phosphate

• sugar and nitrogenous bases

The two strands of DNA run ____________ in relation to each other.

• in the same direction

• perpendicular

• parallel

• antiparallel

The building blocks of DNA and RNA are nucleotides. What are the three components of a nucleotide?

• Oxygen group, 6-carbon sugar, and nitrogenous base

• Phosphate group, 6-carbon sugar, and nitrogenous base

• Phosphate group, 5-carbon sugar, and nitrogenous base

• Oxygen group, 5-carbon sugar, and nitrogenous base

In DNA, the nitrogen base Guanine is complementary (pairs up) to

• Cytosine

• Thymine

• Adenine

• Uracil

mRNA codons contain how many nucleotides?

• 2

• 3

• 1

• 4

During transcription, DNA is transcribed (copied) to make mRNA. In this process, which nitrogenous base replaces the nitrogenous base Thymine originally found in DNA?

• Uracil

• Glycine

• Adenine

• Guanine