Protein synthesis (Edexcel GCSE Biology Combined Science): Flashcards
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What is protein synthesis?
What is protein synthesis?
Process by which cells make proteins from DNA genetic code
Two stages of protein synthesis
Two stages of protein synthesis
Transcription and translation
Where are proteins made in the cell?
Where are proteins made in the cell?
Ribosomes in the cytoplasm
What is mRNA?
What is mRNA?
Messenger RNA - single-stranded polymer of nucleotides
Base difference between DNA and RNA
Base difference between DNA and RNA
RNA uses uracil instead of thymine
Role of RNA polymerase
Role of RNA polymerase
Enzyme that joins RNA nucleotides to make mRNA
What is a codon?
What is a codon?
Set of 3 bases in mRNA coding for an amino acid
Function of tRNA
Function of tRNA
Carries amino acids to ribosome during translation
How many DNA bases code for 1 amino acid?
How many DNA bases code for 1 amino acid?
3 bases (triplet code)
Where does RNA polymerase bind before transcription?
Where does RNA polymerase bind before transcription?
Non-coding DNA region in front of a gene