Post-Translational Modification

Question 0

Produces different combinations of subunits from the original polypeptide chain

Answer 0

Proteolytic cleavage

Question 1

Ribozyme which catalyzes peptide bonds and addition of amino acid residues to the growing polypeptide chain

Answer 1

Peptidyltransferase

Question 2

T/F: proteins processed in the cytoplasm are needed inside the cell, whereas those processed in the RER are exported via the Golgi apparatus

Answer 2

TRUE

Question 3

Allows polypeptide chain to move to the golgi apparatus for packaging; removes signal recognition particles and ribosomal complex

Answer 3

Signal peptidases

Question 4

Carrier protein that binds to ribosomal complex

Answer 4

Signal recognition particle (SRP)

Question 5

Pathway wherein elongation and termination phases are in the ER

Answer 5

Secretory pathway

Question 6

Carbohydrate chains attached to amide nitrogen of aparagine or hydroxyl groups of serine, threonine, or hydroxylysine

Answer 6

Glycosylation

Question 7

Distinguish phagocytosis from receptor-mediated endocytosis

Answer 7

Phagocytosis: actin microfilaments

Receptor-mediated endocytosis: clathrin-adaptin

Question 8

Tags substances for lysosomal degradation

Answer 8

Mannose-6-phosphate

Question 9

Tags aberrent proteins for proteasomes

Answer 9

Ubiquitin

Question 10

Mutation resulting in unchanged amino acid

Answer 10

Silent mutation

Question 11

Mutation wherein one amino acid is changed into another amino acid

Answer 11

Missense mutation

Question 12

Mutation wherein a stop codon is produced, resulting in premature termination

Answer 12

Nonsense mutation

Question 13

Error in reading frame due to insertion or deletion of nucleotides

Answer 13

Frameshift mutation