KERALA PSC / CDPO / BIOLOGY / PHYSIOLOGY AND HEALTH / CARBOHYDRATES
/ NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA
PSC PRELIMINARY
KERALA PSC / CDPO / BIOLOGY / PHYSIOLOGY AND HEALTH / CARBOHYDRATES
/ NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA
PSC PRELIMINARY
·
Organic
compounds containing carbon, hydrogen and oxygen which constitute sugars
(Starch, cellulose, glucose etc..) and supply calories for body activity.
·
The
general formula of carbohydrate molecule is Cₙ(HₙO)ₙ
·
The
sources of carbohydrates are rice, wheat, honey, sugar, potato carrot.
Deficiency of carbohydrates causes weight loss and weakness.
·
Polyhydroxy
aldehyde or ketones are carbohydrates.
·
Based
on the number of sugar units they can be classified into, Monosaccharidas,
Oligosaccharides and Polysaccharidas
·
Starch:
Starch is the Carbohydrate
reserve of plants which is the most important dietry source for higher animal.
·
Sucrose:
It is also called
Cane sugar; sucrose is the major carbohydrate produced in photosynthesis it is transported
into the storage organs of plants, most abundant naturally occurring sugar.
·
Lactose:
Lactose is more
commonly known as milk sugar. Lactose of milk is the most important carbohydrate
in the nutrition of young mammals.
·
Inulin: Inulin is a polymer of fructose, is used for
assessing kidney function through measurement of Gloerular Filtration Rate
(GER)
·
Glycogen: Glycogen is the carbohydrate reserve in animal hence
it is often referred as animal starch it is present in high concentration in
liver, followed by muscle, brain etc.. Glycogen is also found in plants that do
not possess chlorophyll
·
Cellulose: Cellulose occurs exclusively in plants and it is the
most abundant organic substance in plants, predominant constituent of plant
cell wall, cellulose is totally absent in animal cell, cellulose, though not
digested has great importance in human nutrition it is major constituent of fiber.
·
Chitin: It is structural polysaccharide found in exoskellan
of some invertebrates eg, insects, crustaceans.
KERALA PSC / CDPO / BIOLOGY / PHYSIOLOGY AND HEALTH / CARBOHYDRATES
/ NOTES / OBJECTIVE QUESTIONS / STUDY MATERIALS / GENERAL KNOWLEDGE / KERALA
PSC PRELIMINARY

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