cell respiration

Question 1

ATP

Answer 1

adenosine triphosphate (adenine, pentose and 3 phosphate groups)

• universal energy currency of cells, the molecule used in the cells of living organisms to transfer energy where it is required

used for
- active transport
- muscle contraction
- anabolism

created in cell respiration

Question 2

how is energy produced using ATP

Answer 2

in an exergonic reaction where the bond between 2nd and 3rd phosphate molecule of ATP is broken in hydrolysis (w water)

changes atp to adp (diphosphate)

the energy produced is provided to a cell component that carries out a process w it

Question 3

cell respiration

Answer 3

complex series of metabolic pathways and cycles that breaks down carbon compounds releasing energy which is used to generate ATP molecules

the primary process of producing ATP and therefore provides energy to cells

respiratory substrates are broken down in respiration to release energy (need to be absorbed or produced by the organism, glucose is main)

Question 4

types of cell respiration

Answer 4

aerobic
- needs oxygen to occur
- high ATP yield
- begins in cytoplasm and most steps occur in mitochondria
- water and CO2 waste products
- can use any respiratory substrate

anaerobic
- occurs in absence of oxygen
- waste lactate in humans, and ethanol & co2 in yeast
- low ATP yield (2 molecules)
- only in the cytoplasm
- can only use glucose and other carbohydrates

Question 5

cell respiration is affected by

Answer 5

temperature
pH
oxygen and substrate concentration

Question 6

monometer vs respirometer

Answer 6

mono measures gas pressure
respiro rate of respiration