Final old test Part 3

Question 1

Vesicles that carry proteins from ER –> Golgi

Answer 1

(COPII-coated)

Question 2

Major mode of vesicle fustion…targe membrane driven by interactions of pairs proteins called vesicle and target _____________

Answer 2

sNAREs

Question 3

Lysosomes contain 60 enzymes (degradable)…The enzyme deficiency in ____________ prevents hydrolysis of glucosylceramide to glucose and ceramides

Answer 3

Gaucher disease

Question 4

_____________ bind ATP actin and nucleate initial polymerization of long unbranched actin

Answer 4

Formin

Question 5

Actin filaments bound into bundle of parallel filaments by _____

Answer 5

Alpha-actin and fimbrin

Question 6

In actin filament assembly… monomers added to barbed end… pointed end called

Answer 6

Tread milling

Question 7

Muscle contraction, A band _______, I band h band shorter

Answer 7

Stays the same width

Question 8

Myosin _______ present in muscle sarcomeres

Answer 8

II

Question 9

Microtubule assembled from _________ and

Answer 9

Dimer of alpha and p-tublin

Question 10

Hydrolyzed in axle of microtubules (assembly and dissassembley _____

Answer 10

GTP nucleotide triphosphates

Question 11

Microtubules rapidly depolymerizing and growing called _______

Answer 11

Dynamic instability

Question 12

Major microtubule organizing center is _______

Answer 12

Centrosome

Question 13

Microtubles overlap in center of mitotic spindle ______

Answer 13

Polar

Question 14

Role of centrosome ________ microtubule growth

Answer 14

Initiate

Question 15

Coflin ________ of actin filament

Answer 15

Disassembly

Question 16

Actin cross-linked into parallel or _________

Answer 16

Contractile

Question 17

Basis of muscle contraction ___________ and actin fibers pass each other

Answer 17

Sliding myosin and actin

Question 18

Which is true of kinesin and dynein _______

Answer 18

They are microtubules dependent motors

Question 19

Extracellular gels formed from (GAF15) [repeating units of disaccharides] which is not a disaccharide?

Answer 19

Fibronectin

Question 20

Contractile ring of ______ and myosin II is assembled by membrane bound myosin

Answer 20

Actin

Question 21

Which is true of all kinesin; and dyneisin?

Answer 21

They are microtubule dependent motors

Question 22

Extracellular gels formed by (GAG) [repeating units of disaccharides which is not true disaccharide?

Answer 22

Fibronectin

Question 23

Contractile ring of _____________ and myosin II is assembled by membrane bound myosin.

Answer 23

Actin

Question 24

Collagen 3 repeating amino acids

Answer 24

Glycine, proline, hydroxyproline

Question 25

Adherens junctions limited to cytoplasmic ____________

Answer 25

Actin filament

Question 26

Desosomes linked to cytoplasmic _________

Answer 26

Intermediate filaments

Question 27

Specific recognition between cell types like leukocytes and endotheial by cell surface glycoproteins ____________

Answer 27

Selectins