TOPIC 7.3: Translation

Question 1

Initiation

Answer 1

The beginning of the translation

Question 2

What is elongation?

Answer 2

As ribosomes move down the mRNA strand, amino acids are added according to the genetic code

Question 3

P Site

Answer 3

Binds to the tRNA holding
growing polypeptide chain

Question 4

A Site

Answer 4

Binds to the tRNA holding the
next AA in the chain

Question 5

E Site

Answer 5

Site from which tRNA’s are
discharged after losing their AA

Question 6

List the distinct tRNA sites

Answer 6

Amino Acid attachment site
Anticodon
double stranded sections
Two loops

Question 7

How many different enzymes and amino acids are there?

Answer 7

20 of each

Question 8

Four different levels of protein

Answer 8

Primary
Secondary
Tertiary
Quatenary

Question 9

Primary structure

Answer 9

Interacts with environment to determine overall shape

Question 10

Secondary structure

Answer 10

Amino acids in a chain reaction to form larger structures; resulting from H-bonds between Amino acids

Question 11

Tertiary structure

Answer 11

Describes how polypeptide chains
fold as a result of interactions
between AA R groups.

Question 12

Quaternary structure

Answer 12

This structure results from interactions between multiple polypeptide
chains. Many functional proteins consist of chains held together
by H-bonds.