Raveena

Pitu­itary gland is an endocrine gland The gland is enclosed by diam­e­ter and lies in the Sel­la tur­ci­ca of the sphe­noid bone. The pitu­itary gland has two pri­ma­ry lobes or division’s ante­ri­or and pos­te­ri­or lobe which have dif­fer­ent mode of devel­op­ments, struc­ture and dif­fer­ent func­tion. Both are under the con­trol of hypo­thal­a­mus but by different

The earth is the third plan­et from the sun. It is the only plan­et known to have an atmos­phere con­tain­ing free oxygen,water and life. Impor­tant Points Earth ‘s motion is ellip­ti­cal orbit around the sun in one year. It caus­es change of sea­son and vari­a­tion of the length of the days and nights at dif­fer­ent times

The solar sys­tem com­pris­es the sun ‚eight plan­ets and their satel­lite (or moon) and thou­sands of oth­er small­er heav­en­ly bod­ies such as aster­oids , comets and mete­ors. Impor­tant Points are: The sun is at the cen­tre of the solar sys­tem and all the plan­ets revolve around it in ellip­ti­cal orbit . it is the nearest

The uni­verse is com­mon­ly defined as the total­i­ty of every­thing that exist includ­ing all phys­i­cal mat­ter and ener­gy, the plan­ets, stars, galax­ies and the con­tent of inter­galac­tic space.  Impor­tants Points are:- The study of uni­verse is called cos­mol­o­gy. A galaxy is milky way Galaxy (Akash Gan­ga) formed after big ban. Androm­e­da is the near­est galaxy

A syn­drome of phys­i­cal and behav­ioral symp­toms asso­ci­at­ed with men­stru­a­tion. Symp­toms occur near the end of the men­stru­al cycle. The cause is unknown, how­ev­er it is thought to be relat­ed to hor­mon­al fluc­tu­a­tions dur­ing the men­stru­al cycle. Mood swings, sore breasts, food crav­ings, weari­ness, irri­tabil­i­ty, and sad­ness are all symp­toms. Med­ica­tions and lifestyle mod­i­fi­ca­tions may

The pan­creas is an organ locat­ed in the abdomen. It plays an essen­tial role in con­vert­ing the food we eat into fuel for the body’s cells. The pan­creas has two main func­tions: an exocrine func­tion that helps in diges­tion and an endocrine  func­tion that reg­u­lates blood sug­ar. The endocrine pan­creas con­sist of islet of langer­hans . there

Asex­u­al Repro­duc­tion Advan­tages : Asex­u­al­ly repro­duc­ing ani­mals do not require to spend unnec­es­sary time and ener­gy in locat­ing a mate, cop­u­lat­ing and nur­tur­ing their off­spring Asex­u­al repro­duc­tion is very ben­e­fi­cial for ses­sile organ­isms or organ­isms with kow pop­u­la­tion den­si­ties. One advan­tage of asex­u­al repro­duc­tion is that a con­stant com­bi­na­tion of genes match­es a stable ,

The study of chem­i­cal process­es with­in and per­tain­ing to live beings is known as bio­chem­istry or bio­log­i­cal chem­istry. Bio­chem­istry is organ­ised into three fields: struc­tur­al biol­o­gy, enzy­mol­o­gy, and metab­o­lism. It is a sub-dis­ci­pline of both chem­istry and biol­o­gy. Here below are the impor­tant terms of bio­chem­istry are:- Glu­co­neo­ge­n­e­sis — A meta­bol­ic path­way which results in

DNA (Deoxyri­bo nucle­ic acid) It is Deoxyri­bonu­cle­ic acid DNA is dou­ble Stan­dard DNA has Deoxyri­bose sug­ar It is a long poly­mer. It has a deoxyri­bose and phos­phate back­bone hav­ing four dis­tinct bases : Thymine, Ade­nine, cyto­sine & Gua­nine DNA repli­cates on its own it is self repli­cat­ing DNA respon­si­ble for stor­ing & Trans­fer­ring genet­ic infor­ma­tion RNA (Ribo