Protein Synthesis

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NGSS.HS-LS1-1

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NGSS.HS-LS1-1

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NGSS.HS-LS1-1

What is the role of mRNA in protein synthesis?

• It brings amino acids to the ribosomes.

• It replicates the DNA.

• It carries the genetic code from DNA to the ribosome.

• It forms the structure of ribosomes.

What ensures that the correct amino acid is added to the growing polypeptide chain during translation?

• The matching of the tRNA anticodon with the mRNA codon

• The sequence of DNA

• The size of the ribosome

• The type of amino acid

Why are ribosomes considered the site of protein synthesis in Mia's biology experiment?

• They contain DNA that codes for proteins.

• They are the only cellular structure that contains all types of RNA.

• They facilitate the assembly of amino acids into proteins.

• They modify proteins after synthesis.

Tags

DOK Level 1: Recall

Which process converts mRNA into a sequence of amino acids?

• Replication

• Transcription

• Translation

• Mutation

What is the function of ribosomes in protein synthesis?

• To replicate DNA

• To synthesize lipids

• To synthesize proteins

• To modify proteins

Imagine Avery, Luna, and Benjamin are working in a molecular biology lab. They are studying an mRNA strand to understand how ribosomes determine the exact starting and ending points for protein synthesis. How do ribosomes know where to start and stop translation on the mRNA strand?

• By the size of the mRNA strand

• By the presence of start and stop codons

• By the number of tRNAs in the cell

• By the shape of the mRNA molecule

Tags

DOK Level 2: Skill/Concept