PPT-Keywords: alveoli, capillaries, oxygen, glucose,

Keywords lactic acid exercise muscles energy cramp B2 Topic 2 Organisms and Energy This topic looks at Respiration aerobic and anaerobic Photosynthesis and limiting factors Organisms and their environments. All organisms need energy to survive.. Animals obtain their energy from the food they eat, but plants can make their own food by photosynthesis.. In both cases, however, energy must first be converted into a form that can easily be used by cells. This process is called . How do oxygen and carbon dioxide move into and out of the lungs and blood?. Starter: . Sulking! Put out your bottom lip as far as you can. Show your neighbour. How could you describe the blood vessels you can see. . Mrs. Hasson. Ms. Golden. Mrs. Lattanzio. Mrs. . Hopkins. 7. th. Science. The Respiratory System. The purpose of the Respiratory System is to bring needed . Oxygen . to the cells and remove the waste product . To understand the structures of the respiratory system and their functions.. To be able to describe the mechanisms of breathing . To learn the composition of inhaled and exhaled air. To be able to describe how gases are exchanged during breathing.. Presented by Toni Davis and Niamh McDonald. Function of the Respiratory System. What Does The Respiratory System Do?. The respiratory system takes in oxygen to circulate around the body for many uses such as creating ATP, supplying systems with oxygen for smelling and speaking.. Nose. Nose. Function: . Inhales Oxygen (. O. 2. ) . and Exhales . . . Carbon . Dioxide (. CO. 2. ). Uses nose hair (Cilia) to filter dust and germs from entering the lungs. Moistens the air. Warms air . 2.. . Glucose. is main source of food for cells. 3. Cells break chemical bonds of glucose; energy . released. Slide # 2. Go to Section:. Cells Need Energy. Respiration. Cellular Respiration. If cellular respiration took place in just one step:. LARYNX. NOSE. MOUTH. PHARYNX. TRACHEA. BRONCHIOLES. DIAPHRAGM. BRONCHI. ALVEOLI. PLEURA. Write the word that best describes the definitions below:.  . The gas we breathe in. .  . The little branches in our lungs.  . Essential Knowledge: 2.A.3 Organisms must exchange matter with the environment to grow, reproduce, and maintain organization 2.D.2 Homeostatic mechanisms reflect both common ancestry and divergence due to adaptation in different environments. Types of circulatory systems. Diffusion – oxygen and carbon dioxide, based on body shape and size. Gastrovascular. cavities . – distribution of substances throughout the body and in digestion.. Open circulatory system . Do Now activity:. Identify some of the organs involved in the gas exchange system in the human body.. Discuss with your partner what function of some of these organs might be within this system. Explain why organisms need an efficient gas-exchange system. the embryo is approximately 4 weeks old. ,. the . respiratory diverticulum (lung bud. ). appears as an outgrowth from the ventral . wall. of the foregut . The appearance . and location . of the lung bud are dependent upon an increase in . What is the equation for cellular respiration?. Equation is simple but the processes that support cellular respiration are complex. Let’s look at it in more detail.. Cellular respiration occurs in nearly all of the cells in the body, with most of the key processes occurring in the mitochondria.. The ease with which lungs & thoracic wall can be expanded.( extent to which lung will expand for each unit increase in . transpulmonary. pressure. . Compliant lungs are easy to distend. .  Compliance is determined by (2 factors in which compliance related: elasticity of the lungs and surface tension in the alveoli):.