Bioenergetics Flashcards
What is the equation for respiration
Glucose+oxygen —> water + carbon dioxide
What is the reverse reaction of respiration
Photosynthesis
What is glucose used to make
Starch/cellulose/proteins and lipids(stores of energy)
How do you test for starch
Put drops of iodine on sample (leaf/food) turns purple if there is starch present
What practical can be used to show rates of photosynthesis
Put pondweed in water in test/ boiling tube put light near the tube collect O2 made, in upturned measuring cylinder filled with water.
What is the independent, control and dependent variable in the pondweed experiment
Independent= light intensity
Control =temperature and CO2 concentration
Dependent = amount of oxygen collected
What is anaerobic respiration
Respiration without the use of oxygen
What is the equation for anaerobic respiration
Glucose—> lactic acid
What are the problems with anaerobic respiration
Builds up O2 debt, less energy released thank aerobic respiration
What happens to the body during exercise
Heart rate increases and breathing rate increase
What is metabolism
Sum of all chemical reactions occurring in body
What does the liver do
The emotes lactic acid and turns glucose into glycogen
