the process in which oxygen and glucose undergo a complex series of chemical reactions inside cells, releasing energy
What is cellular respiration?
100
an organ found in air-breathing vertebrates that exchanges oxygen and carbon dioxide with the blood; in humans, one of t3wo main organs of the respiratory system.
What are the lungs?
100
three of the most deadly chemicals in tobacco smoke
What are tar, nicotine, and carbon monoxide?
100
the process of removing waste is called this
What is excretion?
100
tar causes ___________ in the breathing airways to clump together
What are the cilia?
200
the throat; part of both the respiratory and digestive systems
What is the pharynx?
200
tiny sacs of lung tissue specialized for the movement of gases between air and blood
What are the alveoli?
200
this is what happened to the percentage of teen smokers between 1999 and 2007
What is the percentage decreased?
200
the chemical that comes from the breakdown of proteins
What is urea?
200
a physical dependence on a substance
What is addiction?
300
the windpipe; a passage through which air moves in the respiratory system
What is the trachea?
300
a large, dome-shaped muscle located at the base of the lungs that helps with breathing
What is the diaphragm?
300
four ot the main diseases caused by tobacco smoke
What are chronic bronchitis, atherosclerosis, lung cancer, and emphysema?
300
the two wastes that your body must eliminate
What are excess water and urea?
300
the rib muscles contract, expanding the air cavity; the rib muscles relax, reducing the size of the chest cavity
What are inhale and exhale?
400
tiny, hairlike projections on the outside of cells that move in a wavelike manner
What are cilia?
400
the voice box; located in the top part of the trachea; underneath the epiglottis
What is the larynx?
400
one has a pink, whole, and smooth surface; the other has a gray, black and rough surface
What are a healthy lung and a diseased or damaged lung?
400
the structures that are involved in removing urine from the body
What are the kidneys, ureters, urinary bladder, and urethra?
400
how excretion helps to maintain homeostasis
What is by keeping the body's internal environment stable and free of harmful levels of chemicals?
500
the passages that direct air into the lungs
What are bronchi?
500
folds of connective tissue that stretch across the opening of the larynx and produce a person's voice
What are the vocal cords?
500
at least 3,000 nonsmokers in the United States die of lung cancer from passive smoke each year; nonsmokers are adversely effected by this
What is second hand smoke?
500
a tiny filtering factory that removes waste from blood and produces urea; each kidney has about one million of them
What are nephrons?
500
___________ ___________ in the skin produce perspiration that contains water and a small amount of urea