CLASS X BIOLOGY

  Transportation Transportation in human beings - Components of Circulatory system: a)Heart            b) Blood vessels       c) Blood §    Heart -    (Refer to figure 6.10 page no. 106 of N.C.E.R.T  Text book)       (i) It is a muscular organ, which works as a pump in the circulatory system.                        (ii)  It is the size of our fist.                        (iii)  It has two sides, which are separated by a partition so that the oxygenated and                               deoxygenated blood do...

v    Respiration - The process by which digested food is broken down with the help of Oxygen to release energy.   Types of  respiration - (i) Aerobic respiration  (ii) Anaerobic respiration         Aerobic respiration             Anaerobic respiration  1.  Takes place in presence of Oxygen. 2.  End products- Carbon dioxide & Water 3. More energy is released. 4.  Takes place in Cytoplasm & Mitochondria 5. Complete oxidation of glucose takes place. 6. It occurs in most organisms. 7.  Equation- Glucose→ Pyruvate→ CO 2   +  H 2 O + Energy 1.  Takes place in absence of Oxygen. 2. End products- Ethanol & Carbon dioxide or                            Lactic Acid. 3. Less energy is released. 4.  Takes place only in Cytopl...

Notes of Chapter- Life Processes ( Nutrition) KEY CONCEPTS & GIST  v    Life processes  – The processes that are necessary for an organism to stay alive. Eg. Nutrition, respiration,circulation, excretion etc. v    Criteria of life - (i) Movement   ii) Growth iii) Life Processes. v    Nutrition - The process in which an organism takes in food, utilizes it to get energy and nutrients for growth, repair and maintenance, etc.  v    Types of nutrition                                                                           1.   ...

Welcome to class Xth.....  Your Biology syllabus for the year is as follows: 1. Chapter Life Processes                                 2. Chapter Control and coordination                                                                             3. Chapter Reproduction 4. Chapter Heredity and evolution                                                                                 5. Chapter Our Environment 6. Chapter Management of Natural Resources                  ...