Cell Bio - ATP release, role and regen

Question 1

How do cells get energy?

Answer 1

By releasing the chemical energy stored in food

Question 2

• What is the role of ATP?
• What is ATP made up of?

Answer 2

• Providing the energy required for cellular activites.
• Made up of 1 adenosine molecule and 3 phosphate groups (Pi)

Question 3

• How can the energy stored in ATP be released?
• Give the equation for this

Answer 3

• By breaking down ATP into adenosine diphosphate (ADP) and a phosphate group.
• ATP → ADP + Pi + Energy

Question 4

• How can ATP be regenerated?
• Give the word equation for this.

Answer 4

• By joining a molecule of ADP to a phosphate group using energy
• ADP + Pi + Energy → ATP

Question 5

List 5 examples of cellular activities that require energy

Answer 5

• cell division
• protein synthesis
• active transport
• muscle cell contraction (in animal bodies)
• transmission of nerve impulses (in animal bodies)