VITASCIENTIA

Hello Dear Students, I have just summarized a part of the chapter for you. These are the basic points which you all must know.  Do wait for the next part of the chapter where we will revise the cell organelles and their functions. Cell: The Structure and Functions Summary v   A cell can be defined as the basic structural and functional unit of all living things. v First discovered by Antonie Van Leeuwenhoek. He developed a simple microscope using only a biconvex lens. He was the first to see the blood cells of frog and recognized them as living units of all living beings. . He did not call them cells. v Robert Hooke was the first to coin the term “cell”. v The branch of biology which deals with the study of cells is called cytology . v Protoplasm is the living substance of the cell.   Cytoplasm + nucleus. v   On the basis of number of cells, the   organisms can be of two types: 1.   Unicellular: Organisms formed of only o...

Hello Dear Students Firstly congratulations to all of you. Welcome to the new academic session. In this year promise yourself you'll learn from the mistakes you made in the last year and work on them and make an effort to improve yourself. May this year be filled with success and good health for all of you. We are all going through a very difficult situation at the moment but if we maintain certain basic things we'll definitely get over it. First and foremost, be very careful about your basic hygiene. Do keep washing your hands with soap from time to time, specially before you put them into your mouth or eyes. Don't keep using sanitizer. You must use sanitizer only when the option of Washing your hand isn't available. Remain indoors. Do not step out of your house until absolutely necessary. And maintain social distance.  Utilitise this time to gather knowledge. Learn new things. See if you can make some nice models using the things that you have at home. Rea...

Dear Students Here are a few things that you should about eutrophication. I had mentioned eutrophication in Dal Lake, Srinagar in one of the lessons. The links and videos will help you to under the situation better. https://www.greaterkashmir.com/news/opinion/eutrophication-a-silent-killer-of-lakes/ https://iisd.org/savi/project/lake-dal-in-srinagar-state-of-jammu-kashmir-india/

Dear Students Here is a list of the  Nobel   Prize   Winners  In  Science of    Indian origin: Chandrasekhara Venkata Raman (1888-1970) Hargobind Khorana (1922-2011) Subramaniam Chandrasekar (1910-1995) Venkatraman Ramakrishnan (1952) See if you can find out more about them.

Dear Students Here are some facts about Blood Donation. https://www.vowforred.com/donating-blood-myths-and-facts/?gclid=CjwKCAiA98TxBRBtEiwAVRLqu2sCsAFTS-OTwpUG6Y84j3zfxDttaxjCctgUnupW_vX0g3l49bqZtRoCpU0QAvD_BwE https://www.indianredcross.org/ircs/program/BloodBank https://www.webmd.com/a-to-z-guides/what-to-expect-when-you-give-blood#1

Dear Students Water Pollution and Water Scarcity is something that you all know by now. Check out the video and link to find out how in Kenya saline water was treated to get fresh water. https://interestingengineering.com/solar-powered-plant-in-kenya-gives-drinking-water-to-35000-people-a-day