respiration 1.4 Flashcards
what is respiration
a series of enzyme controlled reactions by which the chemical energy is stored in glucose and released by all cells
stages of aerobic respiration
stage 1: glycolysis
stage 2: aerobic respiration
how many ATP are released in aerobic respiration
stage 1: 2
stage 2: 36
in total 38 ATP
where does glycolysis occur
cytoplasm
where does aerobic respiration occur
mitochondria
what is fermentation
the breakdown of glucose in the absence of oxygen
what type of fermentation is reversible
fermentation in animal cells
product of fermentation in animal cells
2 lactate that can be reversed to 2 pyruvate
products of fermentation in plant cells
carbon dioxide+ethanol+little energy
products of aerobic respiration
carbon dioxide+water+energy
what is used to measure rate of respiration
respirometer
what is validity in an experiment
it’s to do with the fairness of the experiment
why is a control used
it’s used for comparison
what is a control
an identical experiment to the original except for the factor that’s being investigated is removed
types of variables (factors)
volume, mass, temperature, changing the number of the factor investigated and concentration
