WELCOME IN THE WORLD OF UNDERSTANDING

Yeast is used for commercial production of alcohol and wine. Yeast is grown on natural sugars present in grains like barley, wheat, rice and crushed fruit juices, etc. Take a 500 mL beaker Filled 375 ml of water in the beaker Dissolve 2-3 teaspoons of sugar in it Add half a spoon of yeast powder to the sugar solution. Keep it covered in a warm place for 4-5 hours. Yeast Increase in population by the Process of Reproduction. Smell of the solution changed this is the smell of alcohol as sugar has been converted into alcohol by yeast. This process of conversion of sugar into alcohol is known as fermentation

  1. Name the term for transport of food from leave to other part of plant. Solution – Translocation of food  2. What is lymph? Write its important function ? Lymph is an extra cellular fluid in our body which help in transportation. Lymph carries digested and absorbed fat from intestine and drains excess fluid from extra cellular space back into the blood. 3. State the vital function of kidney.     Kidney is the basic functional unit of our body it help in excretion. Nitrogenous waste such as urea or uric acid are removed from blood in the kidneys. 4. Name the procedure used in working of artificial kidney? Solution – dialysis        For Full Viedo solution in Hindi  Click Here   5. Draw the diagram of cross-section of leaf and level the following in it? 1. chloroplast 2. Guard cell 3. Lower epidermis 4. upper epidermis 6. Write the stage of photosynthesis ( i ) Absorption of light energy by chlorophyll. (ii) Conversion of light...