Carbohydrates, Biology

Assignment Help:

CARBOHYDRATES

  1. Carbohydrate = hydrate of carbon.
  2. Hydroxyl group present.
  3. Aldehyde group or keto group may present.
  4. Carbohydrates are polyhydroxy aldehydes or ketose.
  5. Aldehyde group (-CHO) is generally terminal while keto group (> C = O) is commonly subterminal.
  6. Depending upon the presence of aldehyde or keto group, carbohydrates are called aldoses are ketoses.
  7. Carbohydrates contain Hydrogen and Oxygen in proportion as present in water.
  8. There are few exceptions -

                 Acetic acid (C2H4O2), Formeldehyde (CH2O), Lactic acid (C3H6O3)                         [Not Carbohydrate]
                 Deoxyribose sugar (C5H10O4), Ranose (C6H12O5), Glucosamine (C6H13ON)             [Carbohydrate]

  1. Empirical formula is Cn(H2O)n or (CH2O)n.
  2. Generally 3 elements present in carbohydrate as C, H & O.
  3. Some carbohydrates contain Nitrogen, Phosphorus and Sulphur.
  4. Carbohydrates are also named saccharides as they are formed of sugars.
  5. Carbohydrates that are water soluble & sweet in taste are called sugars.
  6. a & b - forms of sugar show isomerism.
  7. The term sugar is used for small carbohydrates (monosaccharides and disaccharides) that are sweet to taste.
  8. Carbohydrates are the first products of photosynthesis and the main ingredient of reserve food.
  9. They are also called Staff of life.
  10. Upto 80% of the dry weight of a plant is made of carbohydrates.
  11. However, in an animal, the carbohydrate content is not more than 1% of the total.
  12. Carbohydrates are of three types - Monosaccharides, Oligosaccharides, Polysaccharides

Related Discussions:- Carbohydrates

Female reproductive system - graffian follicle, GRAFFIAN FOLLICLE - ...

GRAFFIAN FOLLICLE - It appears as knob or stigma in medulla. It is round, discovered by Graff. It is covered by 2 layers - thecae externa & theca interna. From theca i

filtration, It is the process of separating colloidal and suspended impuri...

It is the process of separating colloidal and suspended impurities from water by passing it through a porous bed made of fine sand and other proper sized granular materials. Filtra

Determine the term - leuconoid sponge, Determine the term - Leuconoid spong...

Determine the term - Leuconoid sponge. The most complex of the three different sponge architectures. Choanocytes are found in chambers, and there is not any spongocoel. Water e

Embryo., Few sentences about embryo

Few sentences about embryo

What is tertiary structure of a protein, Q. What is tertiary structure of a...

Q. What is tertiary structure of a protein? What are the major types of tertiary structure? The tertiary protein structure is a spatial conformation additional to the secondary

Worms, what is the mode of nutrition for worms?

what is the mode of nutrition for worms?

Assessment of aplastic anaemia, Assessment   The patient will present w...

Assessment   The patient will present with striking pallor, irritability and lethargy due to anaemia, bledding or bruising and petechiae due to thrombocytopenia, fever and infe

What are the constituent elements of the blood, What are the constituent el...

What are the constituent elements of the blood? The blood is made of a liquid and a cellular part. The fluid part is known as plasma and in it there are several substances, suc

Choice of transgenic animal, C h oice of transgenic animal First and ...

C h oice of transgenic animal First and foremost is the selection of animal species in which gene of interest is to be transferred. Whatever is the goal of production of tran

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