photosynthesis and respiration Flashcards
what does photosynthesis use and produce
uses carbon dioxide and produces oxygen (plants only)
what does respiration use and produce
uses oxygen and produces carbon dioxide (animals and plants)
what is hydrogen carbonate indicator
its a chemical when changes colour depending on the carbon dioxide level
what carbon dioxide level is red when used with the hydrogen carbonate indicator
normal carbon dioxide level
what carbon dioxide level is purple when used with the hydrogen carbonate indicator
decreased carbon dioxide level
what carbon dioxide level is yellow when used with the hydrogen carbonate indicator
increased carbon dioxide level
the term pry which you use to remember the colours for hydrogen carbonate indicator does how does it work
pry - low to high
the middle is normal
the y is increased carbon dioxide level so more
respiration in taking place
whats compensation point
when the rate of photosynthesis and respiration are exactly equal
in the real world for plants when do compensation point happen
dawn and dusk
in a tube with plants in bright light with hydrogen carbonate indicator what colour will it turn and why
purple because the rate of photosynthesis is faster than the rate of respiration so the co2 levels will decrease
in a tube with plants in darkness with hydrogen carbonate indicator what colour will it turn and why
yellow because photosynthesis has stopped and respiration still continues to produce co2
if animals are in the hydrogen carbonate indicator will the results change
yes because they will use up oxygen and produce carbon dioxide
look at page 32 in revision book and answer questions
what do plant cells carry out and release
carry our respiration and release energy for active uptake
