CLASS X BIOLOGY

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 Cytoplasm. 5. Incomplete oxidation of glucose takes place. 6.  It occurs in certain bacteria, yeast & certain tissues of higher organisms. E.g. In humans during vigorous exercise, when the demand for Oxygen is more than the sup