biology 7.3 ATP provides energy for cellular work

main energy source that cells use for most of their work

ATP - adenosine triphosphate

In what way is ATP like a compressed spring?

ATP is like a compressed spring because the phosphate groups are negatively charged so the crowding of the negative charges contributes to potential energy stored in the ATP. Storing this energy is like compressing a spring. When the spring relaxes, the potential energy is released.

Each phosphate group is ___________ charged and repel each other

negatively

What is the source of energy for regenerating ATP from ADP?

organic molecules from food.

ATP tail is like a spring that releases its _______________ ______________ when relaxed

potential energy

An ATP molecule contains potential energy, much like a compressed spring. When a phosphate group is pulled away during a chemical reaction, energy is ________________.

released

a "tail" with three phosphate groups

triphosphate

the source of energy used for most work

triphosphate

nitrogen-containing compound adenine + five carbon sugar called ribose

adenosine

List three main types of cellular work

chemical work, mechanical work, and transport work