Grade 9 Protein Synthesis Worksheet
This worksheet covers the fundamental processes of protein synthesis, including transcription and translation, for Grade 9 science students.
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Grade 9 Protein Synthesis Worksheet
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Read each question carefully and answer to the best of your ability. Refer to the diagram provided when necessary.
Observe the diagram below illustrating the process of protein synthesis.
1. What is the primary function of mRNA in protein synthesis?
To carry amino acids to the ribosome
To transfer genetic information from DNA to the ribosome
To form the structural components of the ribosome
To catalyze peptide bond formation
2. Which of the following is the correct sequence of events in protein synthesis?
Translation → Transcription → Protein folding
Transcription → Translation → Protein folding
Replication → Transcription → Translation
Translation → Replication → Transcription
3. The process of converting DNA information into mRNA is called .
4. During translation, molecules bring specific amino acids to the ribosome.
5. A sequence of three nucleotides on mRNA that codes for a specific amino acid is called a .
6. Briefly explain the role of ribosomes in protein synthesis.
7. Describe the main difference between transcription and translation.
8. DNA leaves the nucleus to participate directly in translation.
True
False
9. A polypeptide chain is a sequence of amino acids.
True
False
Match the term on the left with its definition on the right.
10. DNA
a. Carries amino acids
11. Ribosome
b. Site of protein synthesis
12. tRNA
c. Genetic blueprint
13. Codon
d. Three-nucleotide sequence on mRNA
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