Biology
Look at the video clip and then answer carefully the questions:
- #51 Summary Of Gas Exchange
1 Multicellular organisms often have surfaces that are specialised to allow exchange of gases to take place between their bodies and the environment. Alveoli in the lungs form the gas exchange surface in mammals. 2 In the human...
- #50 The Gas Exchange System
All organisms take in gases from their environment and release gases to the environment. Animals take in O2 for aerobic respiration and release CO2. Plants also respire, but during daylight hours they photosynthesise at a greater rate than...
- #49.1 Gas Exchange And Smoking Syllabus 2015
? The gas exchange system ? Smoking and smoking-related diseases Learning Outcomes Candidates should be able to: (a) [PA] describe the structure of the human gas exchange system, including the microscopic structure of the walls of the trachea,...
- Respiratory Organs Of Animals
Phylum Respiratory organ Porifera Body surface Cnidaria Body surface Ctenophora Body surface Platyhelminthes Body surface Nemathelminthes Body surface Annelida Skin (integument) Arthropoda Aquatic insects (mayflies, nymphs...
- Respiratory System.
Respiratory System.The cells of our body consume oxygen in order to obtain energy. In this process, called oxidation, the cells burn glucose using oxygen, releasing carbon dioxide, and obtaining the necessary energy to carry out several metabolic processes....
Biology
Ventilation of the lungs
Look at the video clip and then answer carefully the questions:
Ventilation
<!1. Describe the passage of air from outside to the alveoli
<!2. Why is the nasal cavity lined with cilia?
<!3. What does the epiglottis do?
<!4. What is the role of the trachea?
<!5. What is at the end of the bronchioles and why are they so important?
<!6. How does the oxygen get into the capillaries?
<!7. What effect do you think that smoking would have on the air sacks in your lungs?
- #51 Summary Of Gas Exchange
1 Multicellular organisms often have surfaces that are specialised to allow exchange of gases to take place between their bodies and the environment. Alveoli in the lungs form the gas exchange surface in mammals. 2 In the human...
- #50 The Gas Exchange System
All organisms take in gases from their environment and release gases to the environment. Animals take in O2 for aerobic respiration and release CO2. Plants also respire, but during daylight hours they photosynthesise at a greater rate than...
- #49.1 Gas Exchange And Smoking Syllabus 2015
? The gas exchange system ? Smoking and smoking-related diseases Learning Outcomes Candidates should be able to: (a) [PA] describe the structure of the human gas exchange system, including the microscopic structure of the walls of the trachea,...
- Respiratory Organs Of Animals
Phylum Respiratory organ Porifera Body surface Cnidaria Body surface Ctenophora Body surface Platyhelminthes Body surface Nemathelminthes Body surface Annelida Skin (integument) Arthropoda Aquatic insects (mayflies, nymphs...
- Respiratory System.
Respiratory System.The cells of our body consume oxygen in order to obtain energy. In this process, called oxidation, the cells burn glucose using oxygen, releasing carbon dioxide, and obtaining the necessary energy to carry out several metabolic processes....