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Guidence by :- Dr. Manoj A kahar
Presentation by:- Milan mistryDhruv patel Bindiya mehta
( 1st year, 1st sem optometry)
Inorganic compounds are compounds that don’t contain C and H together. Inorganic compounds that are important for living organisms include water, oxygen, carbon dioxide, nitrogen and minerals.
1. Water
2. Oxygen and carbon dioxide
3. Electrolytes
Water is a Polar Molecule
Water molecules are polar.Polar = has a positive side and a negative side.
The negative part of a water molecule is attracted to the positive part of another.
Water Forms Hydrogen Bonds
The bonds formed between water molecules are called hydrogen bond
Hydrogen bonds between molecules of water is what causes water’s surface tension
In most living organisms, oxygen is needed to release energy from food molecules. Organisms can get oxygen from breathing air or from water.
Organisms find it more difficult to get oxygen from water so they tend to be small, flat and relatively inactive or they are highly adapted with organs like gills to aid extraction.
Carbon is an extremely important part of all living things and needs to be cycled through ecosystems.
Carbon dioxide is the main source of carbon for the production of the organic molecules from which living organisms are built.
1) Acids and Bases
2) Buffers
3) Salts
Acids release hydrogen ions into solution
Bases remove hydrogen ions from solution
Strong acids and strong bases ionize completely
Weak acids and weak bases do not ionize
Buffers remove or replace hydrogen
ions in solution
Buffer systems maintain the pH of
body fluids
The normal pH range of blood and other body
fluids is extremely narrow.
Eg:- Venous blood –pH 7.36
Arterial blood-pH 7.41
Salt = an electrolyte whose cation is not hydrogen and whose anion is not hydroxide
Ions exist in solution. If water is removed, the ions will crystallize and form salt