INORGANIC COMPOUNDS TOPIC :- Guidence by :- Dr. Manoj A kahar Presentation by:- Milan mistry Dhruv patel Bindiya mehta ( 1 st year, 1 st sem optometry)
inorganic compounds 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.
TYPES OF INORGANIC COMPOUNDS Water Oxygen and carbon dioxide Electrolytes
Water Water is the most abundant compound in our bodies. Water is the predominant solvent in living organisms ( this means that things can dissolve in it). it has a high heat capacity and it is highly cohesive.
Structure of water Each water molecule consists of a combination of a single oxygen atom with two hydrogen atoms. Each hydrogen atom is linked to the oxygen atom by a strong covalent bond (created by atoms sharing electrons). Although water has an overall neutral charge, the oxygen at the end of a covalent bond is slightly negative and the hydrogen atoms are slightly positive areas
Water is a Polar Molecule Water molecules are polar. P olar = 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
Oxygen 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 dioxide 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.
ELECTROLYTES Acids and Bases Buffers Salts
Acids and Bases 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 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
Salts 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