MasteringBiology Ch Google Chrome Secure https session maste

MasteringBiology: Ch Google Chrome Secure https: session masteringbiology.com/myct/itemView?assignmentProbleml 904632408 offset next BIOL 3215 Cell Biology Spring 2017 Ch 15 Chapter 15, Question 9 primary cell walls are laid down as new cells are formed and are extensible under the appropriate secondary cell walls conditions In some plant cells are deposited on the inner surface of the Because of their high cellulose and lignin contents, are in extensible hemicellulose and therefore specify the final size and shape of the cell definitively. cellulose composes the rigid microfibrils of the cell wall, whereas is one of the xyloglucan major polysaccharides that make up the amorphous matrix in which the Xylan microfibrils are embedded. gn is a polymer of xylose, whereas is a polymer of glucose with side extensins chains that consist of xylose, galactose, arabinose, and fucose. desmotubule are rigid, rodlike glycoproteins with numerous oligosaccharide side chains that are annulus L tightly integrated into the polysaccharide matrix of the cell wall. are polymers of plasmodesma aromatic alcohols that form cross-inked networks with extensin and other cell wall components. gap junction The is the cylindrical structure in the central channel of a plasmodesma. The is the ring of cytoplasm between the and the membrane ha lines th plasmodesma The is the junction that connects the cytoplasms of two adjacent plant cells. It plays he sa e as the between animal cells. Ask me anything Close previous l 9 of 9 l return to assignment 8-00 PM 1/25/2017

Solution

Answer:

Primary cell walls are laid down as new cells are formed are extensible under the appropriate conditions.

In some plant cells, secondary cell walls are deposited on the inner surface of the primary cell walls. Because of their high cellusose and lignin contents, secondary cell walls are inextensible and therefore specify the final size and shape of the cell definitively.

Lignin composes the rigid microfibrils of the cell wall, whereas cellulose is one of the major polysaccharides that make up the amorphous matrix in which the hemicelluloses microfibrils are embedded.

Xylan is a polymer of xylose, whereas xyloglucan is a polymer of glucose with side chains that consist of xylose, galactose, arabinose and fucose.