aerobic and anaerobic respi Flashcards
what does aerobic respiration do
-complete breakdown of glucose
-release more energy nd produces more ATP
what happens with pyruvate during anaerobic respiration
doesnt enter the mitochondria and stays in the cytoplasm
-pyruvate is reduced during glycolysis
-enabling regenerate of NAD
-to make sure theres a continuous supply of NAD for glycolysis
whats the equation for anaerobic respiration in animals
pyruvate+reduced NAD -lactate +oxidised NAD
anaerobic equation for fungi
pyruvate+reduced NAD -ethanol+co2+oxidised NAD
what is a respirometer used for
measure the rate of respiration of a living organism by measuring its uptake of 02 or release of co2
what does the coloured fluid allow in respirometer
ensures maximum movement of fluid with any volume of gas
whats the spring clip
open=permits equilibrium of contents with atmosphere
rubber stopper
airtight (prevents air getting in)
respiratory chamber
has a low volume to ensure that volume changes due to respiratory activity are significant to be measured
graduated scale
movement of coloured fluid may be measured
gauze basket
hold respiring material
-must have pores to allow exchange of gas
filter paper wick
maximum surface area of potassium hydroxide is available to contents of chamber
weighed amount of respiring material
the mass of the respiring material should be known so results can be comparative
glass rod
to keep respiring material out of direct contact with potassium hydroxide solution
potassium hydroxide solution
to absorb carbon dioxide evolved during respiration
what happens when organisms in the respirometer respire aerobically
oxygen is absorbed
-co2 given off is absorbed by potassium hydroxide
-so the volume inside the respirometer decreases
-so the pressure decreases
-so the bubble or coloured fluid moves to the left
what does the movement in the coloured dye indicate
that oxygen has been absorbed
