Question:

Answer: b

Question:

Answer: c

Question: N-linked oligosaccharides on secreted glycoproteins are attached to ________.

(a) nitrogen atoms in the polypeptide backbone.

(b) the serine or threonine in the sequence Asn-X-Ser/Thr.

(c) the N-terminus of the protein.

(d) the asparagine in the sequence Asn-X-Ser/Thr.

Answer: d

Question:

Answer: endoplasmic reticulum

amino acid sequence

folded

sorting signal

transport vesicles

protein translocators

unfolded

Question: Which of the following statements about peroxisomes is false?

(a) Most peroxisomal proteins are synthesized in the ER.

(b) Peroxisomes synthesize phospholipids for the myelin sheath.

(c) Peroxisomes produce hydrogen peroxide.

(d) Vesicles that bud from the ER can mature into peroxisomes.

Answer: a

Question:

Answer: b

Question:

Answer: second

Question:

Answer: second

Question:

Answer: first

Question:

Answer: first