Exam 15: Beyond the Cell: Cell Adhesions, cell Junctions, and Extracellular Structures

Mice lacking plakoglobin have skin defects but usually die from

Animal extracellular matrices contain each of the following except

Which of the following is responsible for the impermeability of the epithelium lining the bladder and ducts connecting the pancreas to the digestive tract?

One of the most important roles of proteoglycans is to trap ________ to form a ________ matrix.

The type of adhesive junction that connects epithelial cells to the basal lamina is a

A cluster of intracellular linker proteins associated with a junction is called a(n)

In cartilage,proteoglycans form large complexes by attaching to

Which of the following is a primary structural constituent of the plant cell secondary wall?

Which of the following regulates paracellular transport?

While investigating a medical condition,you discover that the patient has an autoimmune disease that targets and destroys fibroblasts.This disorder would most likely affect

Free ________ molecules provide lubrication to joints between movable bones.

The primary function of focal contacts is

The ________ is the layer of cell wall material shared between adjacent plant cells.

An autoimmune disorder in which an immune response targets Type V collagen fibers is most likely to affect the

Each of the following is a component of focal adhesions except

Although MCF-10A breast cancer cells grow well on Matrigel-coated culture dishes,the cells will form cysts of polarized cells that produce milk only when

Expansins are proteins that loosen up cell walls so cells can elongate.Auxin is thought to activate expansins by

Numerous collagen fibrils associate to form a collagen ________.

Which of the following functions like a fence to block membrane protein movement between the apical and basolateral regions of an intestinal epithelial cell plasma membrane?

Each of the following is true about plant rosettes except