Bacteria

Bacteria

Dear Viewers: Today we will discuss about the Bacteria Definition of Bacteria:  They are prokaryotic, achlorophyllous and single cellular simple organisms and can survive in extreme conditions eg. Rhizobium, Pseudomonas, Clostridium PROPERTIES BACTERIA They are prokaryotic (true nucleus is absent) They are achlorophyllous Mesosome is present Cell wall is present It can withstand very high temperature Reproduction mainly asexual or vegetative Rhizobium, Pseudomonas, Clostridium, etc.   Define bacteria (1) Ans. Bacteria are defined as one type of aerobic or anaerobic, smallest and simplest unicellular microscopic autoreplicating prokaryotic organism found to occur in air, in water, in living organisms etc. familiarly called as microbes. Discuss the general structure of bacteria. (6) Structure of the Bacteria: Bacteria are single cell organisms. Their cells are Prokaryotic, meaning that they lack a membrane-bound nucleus and many of the cell parts of Eukaryotes (Cells that have a nucleus and many membrane-bound organelles). Some of their parts are: a)  Capsule - Outermost protective layer usually found on disease causing bacteria. Most bacteria contain some...
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Virus An Enigma to Life

Virus An Enigma to Life

Hi viewers Today we will discuss about the Virus An Enigma to Life Virus An Enigma to Life PROPERTIES OF VIRUS It is the bridge between living and non-living It is living when it is present inside the body of the host and non-living when it is outside the body of the host It can be crystallised It may contain DNA and RNA as a genetic material Pox-virus, Maesles-virus, etc .Define virus. Virus is defined as ultramicroscopic, acellular, antigenic, obligatory parasitic, infectious particle containing only one type of nucleic acid, either DNA or RNA as their genome and having the power to multiply only within the specific living host cell, and it is regarded as intermediate between inanimate and animate object. Mention the salient features of Virus. Visible only under electron microscope, a kind of organism lying in between living and nonliving. b. Absence of cytoplasm, hence 'noncellular'. c. Contains only one type of nucleic acid - DNA or RNA. d. They are infectious, obligatory parasites. Why virus...
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Classification of Plant Kingdom

Classification of Plant Kingdom

Hi viewers: In this blog Classification of Plant Kingdom we will discuss the classification of Plants on the basis of different item. Classification of Plant Kingdom Hi viewers, today we will discuss about the Classification of Plant Kingdom.  The plant kingdom is broadly classified into a) Cryptogam and b) Phanerogam.  The word ''Crypto'' means hidden and the word ''gam'' means flower.  So all the bacteria, algae, fungi, bryophytes and pteridophytes are clubbed under Cryoptogams where flowers are not seen.  And all the Gymnosperms and angiosperms are clubbed under Phanerogams where flowers can be seen. Virus an enigma between living and nonliving Schizophyta- Bacteria Thallophyta- Algae and Fungi Bryophyta- Moss Pterydophyta- Fern Gymnosperm- Cycas and Pinus Monocotyledonous- All the pulses and cereals Dicotyledonous- All the flowering plants Virus an enigma between living and nonliving     PROPERTIES OF VIRUS   It is the bridge between living and non-living It is living when it is present inside the body of the host and non-living when it is outside the body...
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Emotions and its corresponding Instincts

Emotions and its corresponding Instincts

Hi my dear Teachers across the world: In this blog I will tell you in the school how it is important to know the Emotions and it corresponding Instincts of the children. As you know I was Principal in a school.  So one day in a class I did see one boy was not paying attention. I asked him, "My dear child what is wrong with you.  Why you are not paying attention to the class". He answered me rudely, "I am not well". I called the boy tenderly and asked him "What you had for breakfast" He answered, "Nothing" I asked him, "Are you hungry". He said , "Yes" I got some cakes and fruits for him through my peon.  He had those and quietly went to the class. When Hunger is the emotion then food seeking would be the corresponding instinct.  As I knew the psychology I handled the situation. So there are fourteen emotions and fourteen corresponding emotions, which are listed below How emotion is related to instinct? State...
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Functional Groups of Organic Compound

Functional Groups of Organic Compound

Hi viewers In this blog we will discuss about the various types of Functional Groups of Organic Compound.   FUNCTIONAL GROUPS A group of atoms responsible for the characteristic reactions of a particular compound   Functional groups   -OH             is an alcohol group -CHO          is an aldehyde group -CO-            is a ketone group -COOH       is a carboxyl or acid group -NH2               is an amino group -CONH2      is an amide group     Now let us check out the compounds when these functional groups get added with the methyl group   CH3-OH                =      Methyl alcohol   CH3-CHO              =      Acetaldehyde   CH3-CO- CH3        =       Acetone   CH3-COOH           =         Acetic acid   CH3-NH2               =          Methylamine   CH3-CONH2       =         Acetamide     Berzelius in 1817 recognized that organic compounds are made up of compound radicals – the radicals being linked to one another in the compound.  The structural formula of a given compound readily reveals the radicals present.  Methyl alcohol CH3-OH may be split up into methyl group CH3-  and  hydroxyl radical   -OH Similarly, Acetic acid CH3-COOH can be split up into methyl group CH3-  and carboxyl radical–COOH     If you have enjoyed reading this post "Functional Groups...
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Homologous Series of Organic Chemistry

Homologous Series of Organic Chemistry

Hi viewers: In this blog we discuss the very basic idea about "Homologous Series of Organic Chemistry". HOMOLOGOUS SERIES Definition In organic chemistry a homologous series is a series of compounds with the same general formula The number of organic compounds is unbelievably large but majority of them have been classified into several series of similar structure or constitutions and chemical properties.  Thus the hydrocarbons methane, ethane propane etc. form a series and is collectively known as paraffin sir alkane.  The alkane may be given the general formula CnH2n+2   The molecular formula of each member of the series  differs from that of another which precedes or follow it by one atom of carbon and two atoms of hydrogen ie. By CH2     Paraffins CnH2n+2   Methane  CH4 Ethane  C2H6 Propane  C3H8 Butane   C4H10 Pentane    C5H12 Hexane    C6H14   Alcohols CnH2n+2.OH   Methyl alcohol   CH3OH Ethyl alcohol      C2H5OH Propyl alcohol    C3H7OH Butyl alcohol      C4H9 OH   FUNCTIONAL GROUP A group of atoms responsible for the characteristic reactions of a particular compound   If you have enjoyed reading this post "Homologous Series of Organic Chemistry".  I would be very...
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