Translation (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Where does translation take place in the cell?
Where does translation take place in the cell?
On ribosomes in the cytoplasm
What are the two key features of a tRNA molecule?
What are the two key features of a tRNA molecule?
Anticodon & amino acid attachment site
What is an anticodon?
What is an anticodon?
A sequence of 3 tRNA bases complementary to an mRNA codon
What catalyzes the formation of peptide bonds during translation?
What catalyzes the formation of peptide bonds during translation?
An enzyme in the ribosome (rRNA)
What are the two roles of ATP in translation?
What are the two roles of ATP in translation?
Amino acid activation & peptide bonds
How many amino acids can be added to a polypeptide chain per second during translation?
How many amino acids can be added to a polypeptide chain per second during translation?
Up to 15
What happens when the ribosome reaches a stop codon?
What happens when the ribosome reaches a stop codon?
No tRNA binds; translation ends
How many tRNA molecules does the ribosome hold at any given time?
How many tRNA molecules does the ribosome hold at any given time?
Two
In RNA, which base does uracil pair with?
In RNA, which base does uracil pair with?
Adenine
What is the maximum number of ribosomes that can translate one mRNA simultaneously?
What is the maximum number of ribosomes that can translate one mRNA simultaneously?
Up to 50