Cellular Respiration
This process releases energy from glucose so cells can use it.
What is the respiratory system?
This gas moves from the lungs into the blood
What is Oxygen?
This organ system brings oxygen into the body and removes carbon dioxide.
What is the respiratory system?
Asthma affects these passages that carry air into and out of the lungs.
What are airways?
Your breathing rate increases during exercise because your cells need more of this gas.
What is oxygen?
This sugar is a main fuel for cellular respiration.
What is glucose?
This waste gas moves from the blood into the lungs to be exhaled.
What is carbon dioxide?
These two organs contain millions of tiny air sacs.
What are the lungs?
During an asthma attack, the muscles around the airways do this.
What is tightening or contracting?
The respiratory system works with this system to deliver oxygen to body cells.
What is the circulatory system?
This molecule provides usable energy for cell activities.
What is ATP?
Gas exchange occurs in these tiny air sacs in the lungs.
What are alveoli?
This tube carries air from the throat toward the lungs and is also called the windpipe.
What is the trachea?
Name one common asthma trigger.
What is pollen, dust mites, smoke, exercise, cold air, or a respiratory infection? Accept one.
Cells produce this gas during cellular respiration, and the lungs remove it.
What is carbon dioxide?
Most ATP from aerobic cellular respiration is produced in these organelles.
What are mitochondria?
Oxygen and carbon dioxide move from areas of higher concentration to lower concentration by this process.
What is diffusion?
This muscle beneath the lungs contracts and moves downward when you inhale.
What is the diaphragm?
Name two common symptoms of asthma.
What are wheezing, coughing, chest tightness, or shortness of breath? Accept two.
Explain why an asthma attack can make physical activity more difficult.
Narrowed airways make breathing harder and can limit oxygen delivery, making it harder to meet working muscles’ energy needs.
Name the two reactants and two material products of aerobic cellular respiration.
Reactants: glucose and oxygen. Material products: carbon dioxide and water. The process also transfers energy into ATP and releases heat.
Explain why alveoli have thin walls and are surrounded by capillaries.
Thin walls provide a short distance for diffusion. Nearby capillaries carry oxygen away and bring carbon dioxide to the alveoli.
Describe the path air takes from the nose or mouth to the alveoli.
Nose or mouth → throat → trachea → bronchi → bronchioles → alveoli. Accept pharynx and larynx as additional steps.
Describe three changes in the airways that can occur during an asthma attack.
The airway lining becomes inflamed and swollen, muscles around the airways tighten, and excess mucus can further narrow the airways.
Explain how oxygen gets from the air to a muscle cell and how that cell uses it.
Oxygen enters the lungs, diffuses from the alveoli into the blood, travels to the muscle, and diffuses into its cells. Cells use oxygen in aerobic cellular respiration to help produce ATP.