, CONTENTS
(01). CHEMICAL BASIS OF LIFE
(06). Structure and functions of the plant and animal cell
(08). Characteristics of organisms
(13). The world of life
(14). Continuity of life
(20). Inheritance
, 01. CHEMICAL BASIS OF LIFE
There are only about 25 elements in the living out of the 92 elements present in nature.
The most common 4 elements in the living body are carbon, hydrogen, oxyjen and nitrogen. Other than above
sulphur, sodium, potasiam, calsium, magnesium, iron and chlorine are essential for the survival of organisms.
Chemical coumpounds that build up living matter can be divided into two categories as organic coumpounds
and inorganic coumpounds. Coumpounds which contain carboun are known as organic coumpounds wich do
not contain carboun are known as inorganic coumpounds. (carbon dioxide, carbon monoxide, carbonates and
bicarbonates are some of the inorganic coumpounds wich contain carbon) those organic coumpounds that
build up living body or living mattar are mattar are known as bio molecules. They
Carbohydrates
Proteins
Lipids
Nucleic acids
These are considered as the main types of bio molecules. Instead of these four 2 For free distribution types,
Vitamins are also one of the organic compounds found in living matter. Water, minerals and gases are some
of the inorganic molecules that are essential for the maintenance of life.
, Carbohydrets
They are produced during the photosythesis of green plants. Potato, grains, sugar, flour are some of the examples
for foods which contain carbohydrates.
The main elemental composition of carbohydrates is carbon ©, hydrogen (h) and oxygen (o).
Hydrogen and oxygen combine in 2:1 ratio in carbohydrates.
Carbohydrates can be clasaifiede into three groups as below according to way they are formed.
(01). CHEMICAL BASIS OF LIFE
(06). Structure and functions of the plant and animal cell
(08). Characteristics of organisms
(13). The world of life
(14). Continuity of life
(20). Inheritance
, 01. CHEMICAL BASIS OF LIFE
There are only about 25 elements in the living out of the 92 elements present in nature.
The most common 4 elements in the living body are carbon, hydrogen, oxyjen and nitrogen. Other than above
sulphur, sodium, potasiam, calsium, magnesium, iron and chlorine are essential for the survival of organisms.
Chemical coumpounds that build up living matter can be divided into two categories as organic coumpounds
and inorganic coumpounds. Coumpounds which contain carboun are known as organic coumpounds wich do
not contain carboun are known as inorganic coumpounds. (carbon dioxide, carbon monoxide, carbonates and
bicarbonates are some of the inorganic coumpounds wich contain carbon) those organic coumpounds that
build up living body or living mattar are mattar are known as bio molecules. They
Carbohydrates
Proteins
Lipids
Nucleic acids
These are considered as the main types of bio molecules. Instead of these four 2 For free distribution types,
Vitamins are also one of the organic compounds found in living matter. Water, minerals and gases are some
of the inorganic molecules that are essential for the maintenance of life.
, Carbohydrets
They are produced during the photosythesis of green plants. Potato, grains, sugar, flour are some of the examples
for foods which contain carbohydrates.
The main elemental composition of carbohydrates is carbon ©, hydrogen (h) and oxygen (o).
Hydrogen and oxygen combine in 2:1 ratio in carbohydrates.
Carbohydrates can be clasaifiede into three groups as below according to way they are formed.
