32. ATP HYDROLYSIS Flashcards
1
Q
- Is ATP Hydrolysis an Exergonic or Endergonic Reaction?
A
- it is an Exergonic Reaction
- energy is released from ATP
- this energy is released when any of the 2 terminal
phosphate bonds are broken
2
Q
- What could ATP Hydrolysis be coupled with?
A
- an endergonic reaction
- this is a reaction where ▵G is positive
- the reaction is not spontaneous
3
Q
- What are two characteristics of Exergonic Reactions?
A
- ▵G is negative
- the reaction is spontaneous
4
Q
- What are the characteristics of Coupled Reactions?
COUPLED = an Exergonic reaction and an Endergonic
Reaction
A
- the overall ▵G value is negative
- the reaction is spontaneous
5
Q
- What process allows for the ATP to drive Endergonic Reactions?
A
- Phosphorylation
- this is the transfer of a phosphate to other molecules
6
Q
- What happens with regards to ATP during Mechanical Work?
A
- the ATP Phosphorylates motor proteins
7
Q
- What happens with regards to ATP during Transport Work?
A
- the ATP Phosphorylates Transport Proteins
8
Q
- What happens with regards to ATP during Chemical Work?
A
- the ATP Phosphorylates Key Reactants
9
Q
- What are Catabolic Pathways?
A
- they are pathways that regenerate ATP from ADP and
Pi
10
Q
- What does the synthesis of ATP from ADP +Pi require?
A
- energy
- it is a catabolic process
11
Q
- What kind of energy comes from Catabolism with regards to ATP synthesis?
A
- exergonic energy
- energy yielding processes
12
Q
- What kind of process is ATP hydrolysis?
A
- it is an anabolic process
- it hydrolyses ATP to ADP + Pi
- it yields energy
13
Q
- What kind of energy comes from Anabolism with regards to ATP Hydrolysis?
A
- energy for cellular work
- endergonic
- energy consuming processes
14
Q
- What is the formula for Photosynthesis?
A
15
Q
- What is the formula for Cellular Respiration (Aerobic)?
A
16
Q
- What is exchanged within Photosynthesis and Aerobic Respiration?
A
- molecules
- energy
17
Q
- In which organelle does Photosynthesis occur?
A
- Chloroplasts