Syringe Model: What are the limitations and strengths of this model?
StrengthsLimitations Fluid in the pleural cavityOne lung Diaphragm works properlyMouth too large Limited space in the pleural cavity No bronchiole tubes diaphragm moves downward during inhalation Chest cavity does not move Pulling down the rubber bottom increases the volume within the syringe balloon fills with air
Is this diagram showing A person inhaling or exhaling?
Exhaling: Diaphragm going up and Chest going down (decreasing the volume of chest cavity)
The right side of the heart pumps to the lungs and the left side pumps to the rest of the body OR The atria (2 atriums) pump together and ventricles pump together. OR The heart receives blood from the body and the lungs & the heart pumps blood to the body and the lungs
How does the blood flow through the heart? Draw arrows in.
You have 2 samples (X & Y) of food, of equal volume, and we burn them, while holding them under a beaker filled with 1000 grams of water. The starting temperature of the water was 20 degrees Celsius. Sample X when heated, raised the temperature of the water to 45 degrees C and sample Y when heated, raised the temperature of the water to 60 degrees C. How many Calories are in sample Y?
Combustion occurs when oxygen and a fuel combine and are ignited with a spark (flame); Cellular respiration occurs when oxygen and glucose combine in the mitochondria. This reaction is started by __________.