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The hormone insulin is a relatively small protein - VCE - SSCE Biology - Question 6 - 2016 - Paper 1
Question 6
The hormone insulin is a relatively small protein. Researchers studying the production of insulin in the cells of the pancreas noted that one of the early steps in t... show full transcript
Worked Solution & Example Answer:The hormone insulin is a relatively small protein - VCE - SSCE Biology - Question 6 - 2016 - Paper 1
Step 1
Step 2
How does Molecule X play a role in the production of preproinsulin?
Answer
Molecule X, or tRNA, facilitates the translation process by carrying specific amino acids to the ribosome. Each tRNA has a specific amino acid that corresponds to its anticodon. The tRNA anticodon pairs with the mRNA codon during translation, allowing the respective amino acids to be joined together to form the polypeptide chain known as preproinsulin.
Step 3
Describe how Molecule W is synthesized.
Answer
Molecule W is synthesized through a process called transcription. During this process, the DNA unwinds and RNA polymerase catalyzes the transcription of the DNA template into Molecule W. Molecule W is complementary to the DNA strand, and in Molecule W, adenine pairs with uracil instead of thymine, which is found in DNA.