ATP Flashcards
1
Q
ATP
A
- Adenosine triphosphate
- Produced in PHS or respiration
2
Q
What happens when ATP is hydrolysed?
A
- Forms ADP and Pi
- Releasing energy
- Pi used to phosphorylate compounds
3
Q
Three different molecules found in one molecule of ATP (1 mark)
A
- Adenine
- Ribose
- Phosphate
4
Q
Give two similarities and two differences between ATP and RNA molecule. (2 marks)
A
- Both contain ribose
- Both contain phosphate
- ATP is an immediate energy source whereas RNA transfers information from DNA in the nucleus to the ribosomes
- ATP has two additional phosphate groups
5
Q
What is the role of ATP synthase? (2 marks)
A
- It synthesizes ATP from ADP + Pi + energy
6
Q
What is the role of ATP hydrolase? (2 marks)
A
- Water is used to break down ATP to ADP which is known as hydrolysis
7
Q
What is phosphorylation? ( 2 marks)
A
- Addition of a phosphate group to a molecule
8
Q
Give 2 circumstances in which ATP is hydrolysed? (2 marks)
A
- To release energy for use by cells
- During growth
9
Q
Name the process during which ATP synthesis takes place (1 mark)
A
- Oxidative phosphorylation
10
Q
Give two uses of ATP in cells (2 marks)
A
- Metabolic processes
- Active transport
