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

Sectioned and formed meats, S e c t i o ned and Formed Meats Thes...

S e c t i o ned and Formed Meats These are technically speaking restructured products, since they are partially disassembled and then reassembled to form products resembl

Explain the term - social attention and environmental influe, Explain the t...

Explain the term - Social Attention and Environmental Influences The importance of social environment and early experiences in neurodevelopment is increasingly recognised. Due

Explain about health economics and economics of malnutrition, Explain about...

Explain about the Health Economics and Economics of Malnutrition? In the earlier units on nutritional problems, we learnt that there are many causes of malnutrition, socioecono

Which is the vertebrate class, Q. Which is the vertebrate class that is con...

Q. Which is the vertebrate class that is considered the first entirely terrestrial? Totally independent from the aquatic habitat, The first entirely terrrestrial vertebrate cla

Define body mass index (bmi), Define Body Mass Index (BMI)? Weight for ...

Define Body Mass Index (BMI)? Weight for height as a marker of nutritional status has the advantage that it is independent of other factors that affect foetal outcome such as m

Munch pressure flow model, Munch Pressure Flow Model Munch, a German p...

Munch Pressure Flow Model Munch, a German plant physiologist, proposed in 1930, a simple physical model which can be tested in the laboratory for the mechanism of phloem trans

Define larval stages of fasciola hepatica fasciola hapatica, Define the Lar...

Define the Larval stages of fasciola hepatica? Fasciola hapatica reproduces both sexual and asexually. Cross-fertilization is of common occurrence. Copulation takes place in t

Determine the central thermoreceptor neurons, Which of the following serves...

Which of the following serves as a sensor, or as part of a sensor, that functions in a negative feedback system? A. Central thermoreceptor neurons whose peripheral terminals ar

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