overall logic of glycolysis and ATP

Question 1

LIVER

Answer 1

The liver is regulating (buffering) blood glucose levels

Question 2

ATP role

Answer 2

investment in early reaction, return in later ones
- in glycolysis atp is used early on in energy investment phase (1-5), make it back in energy generation phase (6-10)

Question 3

What is the key chemical idea

Answer 3

atp is the passage between high energy P donors and low energy P acceptors.
Passage = connection/tube…

If you are a high energy P compound, you are donating P to ADP

If you are a low energy P compound, you are accepting P from ATP

this is explaining why things occur they way they do in glycolysis.