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

How mineral salts participate in enzymatic activity, Q. How mineral salts p...

Q. How mineral salts participate in enzymatic activity? Many mineral salts are cofactors of enzymes that are the substances without which enzymes do not work.

Explain the nutritional and functional role of zinc, Minerals  :-  Zinc ...

Minerals  :-  Zinc Food Source      Meats, cereals.  Nutritional Functional role Essential nutrient: Deficiency produces loss of appetite, growth retardation, skin

Hassan, function of epithelial tissue

function of epithelial tissue

Bronchial asthma, Bronchial Asthma Bronchial Asthma is characterized ...

Bronchial Asthma Bronchial Asthma is characterized by increased responsiveness of the trachea and bronchi to various stimuli that cause narrowing of the airways and difficu

Explain about the cancer, Explain about the Cancer? The word 'cancer' c...

Explain about the Cancer? The word 'cancer' comes from the Latin for crab. It refers 90 any malignant growth or tumor caused by abnormal and uncontrolled cell division. Body ce

Energetic function of organic molecules, Q. What are the few examples of th...

Q. What are the few examples of the energetic function of organic molecules? Ans. Since they are complex molecules, organic molecules store large amount of energy, present

Illustrate the advantages of ridgemapping, Advantages of Ridgemapping T...

Advantages of Ridgemapping This procedure is a good indicator of the available bone width and helps in understanding the angulation of the available bone to the eventual prosth

EMBRYOLOGY.., WHAT IS RECAPITULATION THEORY OF EMBRYOLOGY?AND WHAT IS EMBRY...

WHAT IS RECAPITULATION THEORY OF EMBRYOLOGY?AND WHAT IS EMBRYOLOGY

What do you mean by trachea, Q. Why doesn't the food enter the trachea inst...

Q. Why doesn't the food enter the trachea instead of going to the esophagus? When food is swallowed the swallow reflex is activated and the larynx closes and elevates to avoid

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