Ribosomes and Protein Synthesis

Tag the structure that carries the Amino Acid to the Ribosome.

Tags

HS-LS1-1

The "language" of mRNA is called the ​ (a)   , and it uses three-letter "words" called ​ (b)  

• genetic code

• codons

• nucleotide strategy

• anti-codons

• amino acids

Answer explanation

The 'language' of mRNA is referred to as the genetic code, and it uses three-letter 'words' called codons to encode specific amino acids during protein synthesis.

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HS-LS1-1

HS-LS3-1

What is amino acid from the codon AUG

Tags

HS-LS1-1

What is amino acid from the codon UUU

Tags

HS-LS1-1

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

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DOK Level 2: Skill/Concept

How does the ribosome know where to start translating the mRNA?

• It starts at the first codon.

• It looks for the AUG start codon.

• It begins at the end and works backward.

• It randomly selects a starting point.

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.

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DOK Level 1: Recall

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.

In the process of building a protein in a cell, what role does tRNA play?

• Carries amino acids to the ribosome

• Transfers genetic code from the nucleus

• Forms the structure of the ribosome

• Unzips the DNA strand

Tags

DOK Level 1: Recall