Mr Dewhurst- respiration

Question 1

what is the equation for aerobic respiration

Answer 1

(6)O2 + C6H12O6= (6)CO2 + (6) H20 + 2870 kj (energy)

Question 2

what are some examples of what respiration is needed for

Answer 2

metabolic reactions (energy)
anabolic reactions (synthesis of large molecules)
active transport
mechanical work
maintain body temp

Question 3

what is ATP and how does it work (ADP/AMP)

Answer 3

ATP- adenosine triphosphate
ADP- adenosine diphosphate
AMP- adenosine monophosphate
remove phosphate group- ADP releases 30.5 KJmol-1 of energy
universal- used by all organisms which proves it has evolved from the start of life

Question 4

what is phosphorylation

Answer 4

an inorganic phosphate is added to a molecule like ATP during respiration.

Question 5

where does glycolysis occur and what is it needed for

Answer 5

occurs in the cytoplasm in both anaerobic and aerobic respiration as glucose is to large to fit through mitochondria so is broken down into pyruvate

Question 6

1st stage of glycolysis

Answer 6

ATP phosphorylates glucose (donates phosphate) and another ATP is added so another phosphate is added (Hexose bisphosphate)

Question 7

2nd stage of glycolysis

Answer 7

this splits into 2, 3 carbon molecules called triose phosphate
NADH has been reduced as gained a hydrogen
makes 2 ATP ( with ADP left from start and one attached from cytoplasm) each but 2 used at the start

Question 8

3rd stage of glycolysis

Answer 8

these 2 ATP and NADH make a pyruvate which is transformed glucose to fit into mitochondria