Flash cards from osmosis

Question 1

…………. are formed by groups of proteins that anchor cells together side by side, connecting the actin skeletons of each.

Answer 1

Adherens junctions

Question 2

……….. are connections between cells that form a watertight seal between cells.

Answer 2

Tight junctions

Question 3

……….are cell junctions that keep adjacent epithelial cells together using proteins that extend across the membrane and to the intermediate filaments within the cells.

Answer 3

Desmosomes

Question 4

Gap junctions are formed by membrane proteins called

Answer 4

connexins

Question 5

…………are proteins that attach the actin cytoskeletons of adjacent cells to one another.

Answer 5

Cadherins

Question 6

………are channels between cells which allow for transport of substances including ions and water.

Answer 6

Gap junctions

Question 7

In tight junctions,………..are the proteins that hold cells tightly together.

Answer 7

Claudins

Question 8

An investigator is studying the myometrial cells of the uterus during pregnancy. Just prior to and during labor, it is noticed that the myometrial cells upregulate cell junctions to facilitate synchronization of uterine contraction. These cell junctions are made of which of the following protein(s)?

A
Intermediate filaments and cadherins
B
Claudins and occludins
C
Actin and cadherins 
D
Connexons
E
Intermediate filaments and Integrins

Answer 8

D: Connexons