Chapter 7 And 8

Question 1

What enzyme used to transcribe DNA to RNA

Answer 1

RNA polymerase

Question 2

Direction of RNA pol

Answer 2

5 to 3

Question 3

What does RNA pol look for

Answer 3

Promoter sequence in DNA

Question 4

What is the process where primary RNA transcript is converted to mRNA

Answer 4

5’ capping, 3’ poly A tail, RNA splicing

Question 5

What is a genetic code

Answer 5

Rules by which mRNA is translated

Question 6

Function of tRNA molecules

Answer 6

Adaptors that recognize nucleotide codons and matching Amino acid

Question 7

What enzymes are used in translation

Answer 7

Amino acyl tRNA synthetase

Question 8

Function of aminoacyl tRNA synthetase

Answer 8

Link tRNA to amino acid

Question 9

What sites in ribosome hold tightly on to the tRNA

Answer 9

A and P site

Question 10

What in translation begins protein

Answer 10

Initiator tRNA that matches the start codon

Question 11

In eukaryotes, what is required for translation

Answer 11

Translation initiation factors

Question 12

Is there a 5’ cap in bacteria

Answer 12

No

Question 13

What does the small subunit of ribosome do to start translation

Answer 13

Binds to 5’ cap and moves along mRNA to look for MET

Question 14

What are the stop codons

Answer 14

UAA, UAG, UGA

Question 15

What are the releasing factors used to end protein synthesis

Answer 15

H2O molecule gives H to place on 3’ c terminal end

Question 16

What are polyribosomes

Answer 16

Multiple ribosomes on mRNA that produce proteins, all reading at same time

Question 17

What are some protein synthesis inhibitors

Answer 17

Antibiotics

Question 18

Function of proteases

Answer 18

Break down proteins into peptides then amino acids

Question 19

Proteolysis is used on what

Answer 19

Proteins that are misfolded or have short life span

Question 20

What breaks down proteins in cytosol

Answer 20

Proteasomes and ubiquitin

Question 21

Function of ubiquitin

Answer 21

Tag created that proteasomes look for