Ch 3 Cellular Respiration

Question 1

what is the equation for cellular respiration

Answer 1

C6H12O6+6O2→6CO2+6H2O+36ATP+heat+other waste

Question 2

glucose

Answer 2

C6H12O6

Question 3

glycolysis

Answer 3

first stage of cellular respiration in which glucose is partially catabolized to form pyruvate and from ATP molecules. occurs in cytoplasm

Question 4

explain glycolysis

Answer 4

takes place in cytoplasm. take the glucose. add 2ATP they turn into 2ADP (energy in) , now carbon is split into two three carbon molecules. for each set of molecule, take 2 ADP and convert to 2ATP (energy out) NAD+ gets reduced to NADH. two pyruvate molecules will be produced at the end, they will travel to mitochondria

Question 5

explain the citric acid /krebs cycle

Answer 5

in mitochondria. take acetyl CoA and ad 3NAD+, gets reduced to 3NADH. FAD+ gets reduced to FADH. ADP turns into ATP. 2CO2 is released.

Question 6

explain the electron transfer chain

Answer 6

1/2O2 attaches to complex IV. NADH is oxidized to NAD+ at complex I and releases an electron. FADH is oxidized to FAD+ at complex II and releases an electron. electrons travel from complex I→III→ O2 at IV, creates O-2. as electrons travel, H+ is pumped into inner membrane space creating gradient. one H+ is pumped per electron jump. H+ then moves back down gradient into matrix, creates energy to form ADP to ATP. H+ also joins with O-2 at complex IV to form H2O

Question 7

explain pyruvate oxidation

Answer 7

add CoA to pyruvate. form CO2 from carbon dropping off, creates acetyl CoA. add NAD+ and reduce to NADH