Find photosynthesis revision notes in class 10th phase-1 page...All the best

Find revision notes for your first IT scheduled on 8th of May in class IX page ...read my class room notes as well revise check post and race questions ....All the best 

loss of immunity

                 severe combined immune deficiency disease

                                            SCID

Deficiency of adenosine deaminase  cause acmulation of dATP.

dATP inhibits ribonucleotide reductase  which  cause deficiency of  other three

dNTP  so T and B lymphocyte synthesis inhibits and this decrease immune power

 

                            COLLAGEN PROTEIN

                             ( Greek word-kola meaning glue and gen means producing)

The most abundant protein in vertebrates

major structural protein of extra cellular matrix

 

structure-triple stranded helical  structure

In tropocollagen(300nm long fundamental unit of collagen) 3 left handed alfa helical polypeptide chains are helically twisted in right handed fasion.

polypeptide chain are repeating trypeptide gly-X-Y where X is proline or 3 or 4 hydroxylproline and Y is 5-hydroxylysine  that help in cross linking both intra and inter tropocollegen molecule.hydroxylation of  lysine helps in its glycolysation and in inter chain H-bonding

ascorbic acid/vitC serve as cofactor for hydroxylation enzyames this is why vitc deficiency cause scurvy (bleeding gum) due to less rigid defective collagen.

lysyl oxidase a cu dependent enzyme helps in cross linking

  The fibroblast is the most common cell which creates collagen.

In muscle tissue, it serves as a major component of the endomysium. Collagen constitutes one to two percent of muscle tissue, and accounts for 6% of the weight of strong, tendinous muscles.^[4] Gelatin, which is used in food and industry, is collagen that has been irreversibly hydrolyzed

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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weedicide

2,4-D (2,4-D dichlorophenoxy  acetic acid )              

2,4,5-T(2,4,5-trichlorophenoxy acetic acid)

Both are commonly used pesticide/herbicide used in the control of broadleaf weeds.

Both are synthetic auxin ,a class of plant hormone which causes uncontrolled ,unsustainable

growth ,causing stem curl -over,leaf withering and eventual plant death.

krishna is the supreme power governing the whole world........