CHAPTER 10 - MULTICELLULAR ORGANISMS

Animal cells are surrounded by an ___ (bone and cartilage of animals)

ECM

Plant cells are surrounded by a ___ ___ (woody parts of plants)

cell wall

The major macromolecules of the ECM are ___ and ___

proteins, polysaccharides

multicellular species have a larger ___ than unicellular species.

genome

larger genome = larger ___

proteome

animal cells ___ materials that form an ECM which provides support and organization to the cell

secrete

The most abundant proteins in the ECM are those that form ___ ___

large fibers

The polysaccharides attract water and give the ECM a ___-___ character

gel-like

four important roles of the ECM are:

strength, structural support, tissue organization, cell signaling

The ___ of many animals are composed primarily of ECM

bones

___ proteins adhere ECM components together and to the cell surface

adhesive

what are two adhesive proteins?

fibronectin and laminin

___ proteins form large fibers that give the ECM its strength and elasticity

structural

what are two examples of structural proteins?

collagen and elastin

___ provides high tensile strength to many parts of an animals body. It is the main protein found in bones, cartilage, tendons, skin, and the lining of blood vessels.

-this is the main structural protein as more than 25% of the total protein mass consists of collagen

collagen

___ provides elasticity (rubber band — stretching under pressure and snaps back when tension is released)

elastin

___ are the second major component of the ECM in animals.

polysaccharides

what is the first major component of ECM in animals?

proteins