gas exchange + alveoli Flashcards
(11 cards)
what are alveoli designed for?
gas exchange
⋆. 𐙚 ˚ alveoli are specialized structures in the lungs that facilitate the exchange of gases.
why do alveoli present a large surface area?
there are millions of alveoli
⋆. 𐙚 ˚the vast number of alveoli increases the surface area available for gas exchange
what is the significance of the moist surface lining of alveoli?
gases can dissolve before they diffuse
⋆. 𐙚 ˚ moisture is essential for effective gas exchange as it allows gases to dissolve
⋆. 𐙚 ˚ what happens to oxygen and carbon dioxide at the lungs?
oxygen diffuses into the blood; carbon dioxide diffuses into the alveoli
⋆. 𐙚 ˚ this process is crucial for maintaining proper gas levels in the blood
what occurs at the cells regarding gas exchange?
oxygen diffuses into cells; carbon dioxide diffuses out into the blood
⋆. 𐙚 ˚ this exchange is essential for cellular respiration.
is breathing necessary for respiration?
breathing is necessary for respiration
⋆. 𐙚 ˚without breathing, the body cannot obtain oxygen for cellular processes
define respiration
a chemical reaction that breaks down glucose to release energy using oxygen
⋆. 𐙚 ˚ respiration is vital for energy production in living organisms
what are the waste products of respiration?
Carbon dioxide and water
⋆. 𐙚 ˚ these waste products are expelled from the body through the lungs, skin, and kidneys
where does respiration take place?
inside the cells
⋆. 𐙚 ˚ celluar respiration is a fundamental process occurring in all living cells
fill in the blank: the word equation for respiration is glucose + oxygen → _______ + water + energy
carbon dioxide
⋆. 𐙚 ˚ this equation summarizes the process of aerobic respiration
What is the purpose of respiration in living organisms?
to make energy all of the time
⋆. 𐙚 ˚ energy production is essential for all cellular activities
