quiz 10

Question 1

is rho gtpase involved in the SNARE hypothesis model mechanism?

Answer 1

no, rab gtpase is

Question 2

T or F: adding a mannose phosphate to a protein that normally is constitutively secreted would make it accumulate in the ER

Answer 2

false

Question 3

The plant cell organelle most analogous to animal cell lysosomes is the ______________

Answer 3

vacuole

Question 4

T or F: Peroxisomes are not derived from the endoplasmic reticulum

Answer 4

true

Question 5

In which organelle would you expect to first find a protein destined to be secreted from a cell?

Answer 5

endoplasmic reticulum

Question 6

lysosomal storage diseases caused by a deficiency in lysosomal enzymes

Answer 6

-Hurler syndrome
-Hunter syndrome
-type II glycogenosis
-Tay-Sachs disease

Question 7

the continuous release of mucus by the epithelial cells lining the respiratory tract is an example of ___________________

Answer 7

constitutive secretion

Question 8

components of the core oligosaccharide side chain in the ER

Answer 8

-N-acetyl glucosamine
-mannose
-glucose

Question 9

T or F: You have isolated two fractions containing similar-sized vesicles by centrifugation. You suspect one fraction contains lysosomes and the other contains peroxisomes. To confirm that a fraction contains peroxisomes, you would assay for acid phosphatase activity

Answer 9

false (catalase activity)

Question 10

technique used to measure the strength of a v-SNARE-t-SNARE interaction

Answer 10

optical tweezers

Question 11

Uptake of low-density lipoproteins (LDLs) occurs by _________________

Answer 11

receptor-mediated endocytosis

Question 12

proteins that requires GTP in the process of LDL receptor-mediated endocytosis

Answer 12

dynamin