Protein Synthesis Flashcards
Process of protein synthesis where mRNA is synthesized from a DNA template in order to transfer info from DNA to RNA. It occurs in the nucleus
Transcription
Process of protein synthesis where a protein is synthesized off of an mRNA template. Occurs in the cytoplasm. Uses mRNA, tRNA, and ribosome
Translation
During transcription, a DNA molecule is unzipped and the nitrogen bases (AT CG) are exposed. what synthesizes mRNA from the unzipped areas with complimentary base pairing?
RNA Polymerase
A:U
C:G
Three sequential bases of a synthesized mRNA which code for an amino acid are called
Codons
The synthesized product of transcription is actually
a pre-mRNA which is subsequently edited or
shortened to form the mRNA which will be used for
transcription
The non informational regions that are edited out
The informational regions that are left in and spliced together
Introns
Exons
Where does mRNA leave the nucleus through to enter the cytoplasm?
Nuclear Pores
The process of protein synthesis where upon arrival of the mRNA into the cytoplasm,
ribosomes (rRNA and protein organelles) will bind with the mRNA to begin it…
Translation
Name the 3 sites of ribosomes
P-Site
A-Site
E-Site
The site of a ribosome that binds with the tRNA carrying amino acid (1st)
P-site
The site of a ribosome that binds with a tRNA carrying amino acid (2nd)
A-site
The site of a ribosome from where empty tRNA is released
E-site
Synthesized separately off of DNA molecule and are “ready and waiting” in the cytoplasm when protein synthesis occurs
tRNA
What do tRNAs have on each end?
What binds with codon on mRNA?
Amino Acid and Anti-Codon
Anti-codon (duh)
What happens to the amino acids when the tRNAs bind with the mRNA?
They form a peptide bond with eachother
The ribosome translocates the two tRNAs to the next site, The initiator tRNA goes to the E site and then exits, while the second tRNA goes to the P site. The ribosome also slides the mRNA to the next codon. A third tRNA will bind at that codon
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