Info on videos for Test 4

Question 1

all eukaryotes have

Answer 1

microtubules and actin filaments

Question 2

some animals have

Answer 2

intermediate filaments

Question 3

desmosomes

Answer 3

connecting cell cell junctions

Question 4

actin is also called

Answer 4

microfilaments

Question 5

alpha tubulin are

Answer 5

minus ends

Question 6

beta tubulin are

Answer 6

plus ends

Question 7

microtubules and cells link only from

Answer 7

plus end

Question 8

microtubule organizing centers use a 3rd type of tubulin called

Answer 8

gamma tubulin

Question 9

gamma tubulin + accessory proteins

Answer 9

gamma tubulin ring complex. skips rate limiting step

Question 10

polymerization happens much faster in

Answer 10

microtubule organizing centers

Question 11

lengthening and shortening is dynamic process. how is it regulated?

Answer 11

small GTPases

Question 12

catastrophe

Answer 12

slower addition than hydrolysis

Question 13

rescue

Answer 13

faster addition than hydrolysis

Question 14

tissue types that make up extracellular matrix

Answer 14

fibers, proteoglycans, multi-adhesive glycoproteins

Question 15

fibers

Answer 15

• collagen fibers (collagen I, III)

- elastic fibers

Question 16

collagen

Answer 16

most abundant protein in body, 30% of dry weight

Question 17

dynactin complex

Answer 17

connects to cargo

Question 18

RILF

Answer 18

Analyzing an immunofluorescence image