Translation

Question 1

What is translation

Answer 1

Polypeptide chains created

Question 2

Stage 1

Answer 2

mRNA attaches to ribosome and ribosome attaches to start codon on mRNA (1st 3 mRNA bases)

Question 3

Stage 2

Answer 3

tRNA with complementary anticodon to the start codon aligns opposite the mRNA - held in place by ribosome

Question 4

Stage 3

Answer 4

The ribosome will move along the mRNA to enable another complementary tRNA to attach to the next codon on the mRNA

Question 5

Stage 4

Answer 5

The 2 amino acids that have been delivered by the tRNA are joine by a polypeptide bond which is catalysed by an enzyme and ATP

Question 6

Stage 5

Answer 6

This continues until ribosome reaches a stop codon at the end of mRNA

Question 7

How many tRNA can a ribosome hold

Answer 7

2

Question 8

What is a stop codon

Answer 8

Does not code for an amino acid and therefor the ribosome detaches and translation ends

Question 9

What reaction happens to atp

Answer 9

Hydrolysed