Explain hemicellulose, Biology

Assignment Help:

Hemicellulose

In plant cell walls, the most abundant compound present is α-cellulose with long fibers embedded in a matrix of cementing compounds (matrix polysaccharides). These compounds are alkali soluble and are called as hemicelluloses. They constitute about 20-30% of plant cell walls.

Hemicellulose is defined as a large polysaccharide, which helps give structure to plant cells.  Hemicellulose gives fruits and vegetables crisp, chewy, fibrous characteristics that partially remain after cooking. Along with pectin, it forms an amorphous matrix in which cellulose fibrils from the plant cell walls are embedded.  It has the chemical formula of C6H10O5 and consists of a chain of D-xylose sugar units which has side chains of units of other sugars branching off it.

 


Related Discussions:- Explain hemicellulose

Precautions should be taken while exercising?, Q. Precautions should be tak...

Q. Precautions should be taken while exercising? Being a diabetic the patient has to take a few precautions. These are: - Initiate the exercise programme gently and then bui

Zearalenone, Zearalenone It was first isolated as the agent responsibl...

Zearalenone It was first isolated as the agent responsible for vulvovaginitis in pigs has very little acute toxicity, but there should be some concern about chronic exposure t

What is a biome, What is a biome? A biome is the prevailing ecosystem c...

What is a biome? A biome is the prevailing ecosystem constituted by similar abiotic and biotic factors present in one or more regions of the planet.

How do malign neoplasias appear, Q. How do malign neoplasias appear? Th...

Q. How do malign neoplasias appear? The Neoplasias appear due to DNA mutations in genes that regulate the cellular proliferation thus making the cell lose its capacity to contr

What are goitrogens, What are Goitrogens? Certain chemical substances l...

What are Goitrogens? Certain chemical substances like thiocyanates, phenols, disuphides, flavanoids etc, found in the environment, can interfere with iodine metabolism. These s

Areas affected in peptic ulcer, Q. Areas affected in peptic ulcer? The ...

Q. Areas affected in peptic ulcer? The areas affected in peptic ulcer (due to erosion) can be: 1. Lower part of the oesophagus. 2, stomach (lesser curvature - an urn, whe

Emulsion preparation, Em u l sio n preparation Frozen deboned meat,...

Em u l sio n preparation Frozen deboned meat, fat and by-products are tempered at 0° to 4° C for 12to 15 hr and cut into pieces and coarse minced by passing through 8, 10 o

What is polysaccharides, What is Polysaccharides? Polysaccharides:  M...

What is Polysaccharides? Polysaccharides:  Many monosaccharide subunits can be joined to form long, complex polysaccharide molecules. These complex sugars are often used to s

Describe occurs from a physiological standpoint, Describe the occurs from a...

Describe the occurs from a physiological standpoint to the respiratory system when smoke is inhaled and exhaled. You will need to use other sources aside from your textbook.

First systematic theory in psychiatric nursing, First Systematic Theory in ...

First Systematic Theory in Psychiatric Nursing: Hildegard Peplau, one of the nurse-theorist, published a book on Interpersonal Relations  in Nursing (1952) and gave-the introd

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd