Lec 11

Question 1

Vesicle

Answer 1

Phospholipid sphere with cargo proteins

Question 2

How are vesicles formed

Answer 2

Cargo molecules stick to cargo receptors

Clathrin (and other coat protein) bind to flat membranes and bend it into balls, forming vesicles

Question 3

Coat proteins

Answer 3

Surround vesicles

Question 4

Clathrin

Answer 4

When put together they form soccer ball shapes

Question 5

Adaptin

Answer 5

Connects coat proteins/clathrin to cargo receptors

Question 6

Dynamin

Answer 6

Closes the vesicle and separates the vesicle

Question 7

Removing coat proteins

Answer 7

Adaptin is regulated by Ran

It uncoats the protein by when the vesicle is made and Adaptin GTP turns into the inactive Adaptin GDP

Question 8

Iron transport in humans

Answer 8

Red blood cells and hemoglobin

Question 9

Iron delivery

Answer 9

Intestine cell

Blood

Future RBC

Question 10

Transferrin proteins

Answer 10

Made in livir

Transports iron to target

Uses receptor mediated endocytosis

Question 11

How to vesicles move

Microtubules

Answer 11

Microtubules have polarity and a characteristic arrangement in animal cells

Motor proteins when given ATP can walk along microtubules

Question 12

Kinesin

Answer 12

Move from - end to + end along microtubules while holding onto vesicles

Question 13

Dynein

Answer 13

Move from + end to - end along microtubules while holding onto vesicles

Question 14

Receptor mediated endocytosis uses

Answer 14

Dynein

Question 15

Golgi surrounds the

Answer 15

Centrosome

Question 16

Microtubules come out of

Answer 16

Centrosome

Question 17

Moving toward the centrosome is

Answer 17

Dynein

Question 18

Moving away from the centrosome is

Answer 18

Kinesin

Question 19

How do vesicles fuse with their targe membraines

Answer 19

SNAREs

Question 20

v SNARE

Answer 20

Vesicle SNARE

in vesicle

Question 21

t SNARE

Answer 21

Target SNARE

in plasma membrane

Question 22

Vesicle leaving an organelle are given

Answer 22

The appropriate V-snare

Question 23

Vesicles fuse with the target membrane when

Answer 23

SNAREs pull together

Question 24

Later the cells are separated and

Answer 24

The v-SNARE goes back