Respiration: Glucose Lactic Acid + Little Energy
Respiration: Glucose Lactic Acid + Little Energy
Respiration: Glucose Lactic Acid + Little Energy
Respiration is the oxidation of food substances with the release of energy in every living cell. It is catalyzed by enzymes found in mitochondria Releases carbon dioxide and energy Energy released is used to form adenosine triphosphate (ATP) which are small packets of energy that provide energy for activities such as cell division and synthesis of proteins.
Aerobic respiration
Oxidation of food substances in the presence of oxygen to release a large Amt of energy. Carbon dioxide and water are released as waste products
C6H12O6 + 6O2 Glucose + oxygen Anaerobic respiration 6CO2 + 6H2O + energy Carbon dioxide + water + energy
Breakdown of glucose in the absence of oxygen to release energy. Occurs in yeast and muscle cells
active
Glucose Lactic acid + little energy
Muscles respire anaerobically when the supply of oxygen becomes inadequate during vigorous exercise. Muscular pain is experienced due to production of lactic acid (toxic).
MECHANISM OF BREATHING Passage of air Nostrils Nasal Passages Pharynx Larynx Trachea Bronchi
Bronchioles
Internal intercostal muscles = relax External intercostal muscles = contract The diaphragm contracts and flattens. Ribs move upwards and outwards. Volume of thoracic cavity increases. Air pressure in the lungs causes it to expand and fill up enlarged space in the thorax. Expansion of lungs causes the air pressure inside to decrease. Atmospheric pressure is no higher than air pressure in lungs. Air rushes into the lungs.
Part of Body
Nose
Trachea/ Bronchi