CH3 atp Flashcards
1
Q
What are the three main types of activity cells require energy for
A
- synthesis
- transport
- movement
2
Q
What is the structure of an ATP molecule
A
- a nitrogenous base (always adenine)
- a pentose sugar (always ribose)
- three phosphate groups
3
Q
Why is atp known as universal energy currency
A
Used for energy transfer in all cells of all living things
4
Q
How does atp release energy
A
- energy needed to break bonds and released when bonds are formed
- small amount needed to break bond holding last phosphate group and a large amount released when liberated phosphate undergoes other reactions involving bond formation
5
Q
How much more energy is released than used in atp
A
30.6 kJ
6
Q
Why is the removal of the phosphate group hydrolysis
A
- water is involved
7
Q
Why is atp a bad long-term energy store
A
- bonds are instable
8
Q
What is a better long term energy store
A
- fats and carbohydrrates
- energy released in breakdown of these is used to create atp
9
Q
How is atp created
A
- phosphorylation
- reattaching a phosphate group to an adp molecule
10
Q
Properties of atp
A
- small
- water soluble
- releases energy in small quantities
- easily regenerated
