What is the function of the circulatory system? How do the 3 substances below present in tobacco affect the body? Nicotine - Carbon Monoxide - Tar - What is respiration? What is the equation for respiration? What is the function of the respiratory system? How does the does the concentration of oxygen and carbon dioxide differ between the air we breathe in compared to the air we breathe out? Air breathed in Air breathed out Describe what happens to the breathing rate when we exercise and explain it changes. Smoking causes coronary heart disease. How does this disease affect the body? What is the equation for anaerobic respiration? Where does respiration take place within a cell? Define a 'balanced diet List the 7 essential nutrients 1 2 3 4 5 6 7 What is the function of the digestive system? Provide an example of a food that provides a source of lipids
Label the structures Explain how the bell jar model can be used to demonstrate breathing. What structure does each part represent.
What is the function of the circulatory system? To transport oxygen and nutrients around the body
What is the function of the respiratory system? To move air in and out of the lungs to provide oxygen and remove carbon dioxide
What is respiration? Respiration is a process that releases energy from glucose and oxygen
Where does respiration take place within a cell? In the mitochondria
What is the equation for aerobic respiration
What is the equation for anaerobic respiration
How does the does the concentration of oxygen and carbon dioxide differ between the air we breathe in compared to the air we breathe out? Air breathed in: High amounts of oxygen (21%) Low amounts of carbon dioxide (0.04%) Air breathed out: Less oxygen (16%) More carbon dioxide (4%)
Describe what happens to the breathing rate when we exercise and explain how changes. Breathing rate increases and breaths become deeper The muscles will need more energy so more respiration will take place. Increase breathing depth and rate will provide more oxygen and remove more of the carbon dioxide produced
How do the 3 substances below present in tobacco affect the body? Nicotine - Carbon Monoxide - Tar - Affects the brain and causes addiction Causes red blood cells to carry less oxygen Causes lung cancer
Smoking causes coronary heart disease. How does this disease affect the body? Fatty deposit builds up on the walls of the arteries making the diameter smaller. This reduces the amount of oxygen and glucose that can reach the body cells as its more difficult for blood to pass through the body
What is the function of the digestive system? To break down large insoluble food molecules into smaller soluble molecules that can be absorbed into the blood stream
Label the structures Salivary gland Oesophagus Stomach Small intestine Rectum Nose Mouth Liver Gall bladder Large intestine Anus Pancreas 1 – Nose 2 – Mouth 3 – Larynx 4 – lung 5 – Bronchus 6 – Diaphragm 7 – Pharynx 8 – Trachea 9 – Bronchus 10 – Bronchiole 11 - Alveoli Click to add text Explain how the bell jar model can be used to demonstrate breathing. What structure does each part represent.