ATP

Question 1

What is ATP ?

Answer 1

universal energy currency in cells

Question 2

What is the bond energy in ATP molecule used for ?

Answer 2

drive essential metabolic processes

Question 3

What is light energy used to form ?

Answer 3

chemical bonds in ATP

Question 4

What happens when ATP is broken ?

Answer 4

release energy

used to make bonds

glucose formed

Question 5

What happens to glucose during respiration ?

Answer 5

broken down

Question 6

What happens to the energy released in respiration ?

Answer 6

synthesise ATP

Question 7

What is the name of the process in which ATP is synthesised ?

Answer 7

chemiosmosis

Question 8

What is chemiosmosis ?

Answer 8

diffusion of protons from region of high concentration to a region of low concentration

Question 9

What is released as protons flow down their concentration gradient ?

Answer 9

energy

Question 10

What does the energy get used for to form ATP ?

Answer 10

attachment of inorganic phosphate to ADP

Question 11

What is one way in which electrons get excited to higher energy levels ?

( light )

Answer 11

electrons in pigment molecules absorb light from sun

Question 12

What is another way in which electrons get excited to higher energy levels ?
(chemical)

Answer 12

higher energy electrons released when chemical bonds are broken in respiratory substrate molecules

Question 13

What is an electron transport chain made up of ?

Answer 13

electron carriers

Question 14

What happens when excited electrons move from one electron carrier to another ?

Answer 14

energy released

Question 15

What is the energy released from electron moving along electron carriers used for ?

Answer 15

create proton gradient

pump protons across a membrane

Question 16

How do protons move through membrane down concentration gradient ?

Answer 16

pass through hydrophilic membrane channel which is linked to enzyme ATP synthase

Question 17

What does enzyme ATP synthase catalyse ?

Answer 17

synthesis of ATP