respiration Flashcards
what is digested food in our bodies used for?
providing energy, growth and chemicals to make new substances
what is the process of respiration?
releasing energy into our bodies
what is the main energy resource in our bodies?
glucose
what does glucose do?
releases energy and and produces carbon dioxide
how many valves does the valve have?
2
why does the heart have 2 valves?
one half pumps blood to the lungs and the other pumps blood around me rest of the body
what makes up the circulatory system?
the heart and blood vessels
what are the smallest blood vessels called?
capillaries
how is carbon dioxide transported around the body?
by dissolving in the plasma
what is the word equation for respiration?
glucose + oxygen= carbon dioxide + energy (water vapour)
what do cells that need oxygen take it from?
a liquid that leaks out of capillaries
what liquid do cells that need oxygen take it from?
tissue fluid
name the correct order that the air travels though when entering the lungs
trachea, bronchus, alveoli, air sac
what is diffusion?
the movement of particles from an area where they are in high concentration to an area where they are in low concentration
what does mucus do?
lines the air passages and traps dirt and tiny organisms called microbes
