7.4

Question 1

Adenosine triphosphate (ATP)

Answer 1

Source of chemical potential energy
Main energy currency for all cells

Question 2

ATP

Answer 2

• a nucletiode
  -adenine base
  -5 carbon sugar ribose
• a chaine of 3 phosphates attached to the 5 prime carbon of the sugar

Question 3

The ATP cycle

Answer 3

ATP is constantly synthesized and used (cells store only a few seconds worth of ATP)
In coupled reaction, an exergonic reaction (ATP hydrolysis) is combined with an exergonic reaction= overall net negative delta G

Question 4

ATP synthesis depends on

Answer 4

Energy form exergonic cellular reactins

Question 5

ATP hydrolysis provides

Answer 5

Energy for endergonic cellular processes

Question 6

ATP is also used to control the activity of many proteins

Answer 6

Phosphorylation/ dephosphorylation is a molecular light switch